diff --git a/Cargo.lock b/Cargo.lock
index ecd9c194f..668d117ea 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,18 +4,18 @@ version = 3
 
 [[package]]
 name = "addr2line"
-version = "0.24.2"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dfbe277e56a376000877090da837660b4427aad530e3028d44e0bffe4f89a1c1"
+checksum = "6e4503c46a5c0c7844e948c9a4d6acd9f50cccb4de1c48eb9e291ea17470c678"
 dependencies = [
  "gimli",
 ]
 
 [[package]]
-name = "adler2"
-version = "2.0.0"
+name = "adler"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "512761e0bb2578dd7380c6baaa0f4ce03e84f95e960231d1dec8bf4d7d6e2627"
+checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
 [[package]]
 name = "ahash"
@@ -40,15 +40,15 @@ dependencies = [
 
 [[package]]
 name = "allocator-api2"
-version = "0.2.20"
+version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "45862d1c77f2228b9e10bc609d5bc203d86ebc9b87ad8d5d5167a6c9abf739d9"
+checksum = "5c6cb57a04249c6480766f7f7cef5467412af1490f8d1e243141daddada3264f"
 
 [[package]]
 name = "anstream"
-version = "0.6.18"
+version = "0.6.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8acc5369981196006228e28809f761875c0327210a891e941f4c683b3a99529b"
+checksum = "418c75fa768af9c03be99d17643f93f79bbba589895012a80e3452a19ddda15b"
 dependencies = [
  "anstyle",
  "anstyle-parse",
@@ -67,37 +67,37 @@ checksum = "55cc3b69f167a1ef2e161439aa98aed94e6028e5f9a59be9a6ffb47aef1651f9"
 
 [[package]]
 name = "anstyle-parse"
-version = "0.2.6"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b2d16507662817a6a20a9ea92df6652ee4f94f914589377d69f3b21bc5798a9"
+checksum = "c03a11a9034d92058ceb6ee011ce58af4a9bf61491aa7e1e59ecd24bd40d22d4"
 dependencies = [
  "utf8parse",
 ]
 
 [[package]]
 name = "anstyle-query"
-version = "1.1.2"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79947af37f4177cfead1110013d678905c37501914fba0efea834c3fe9a8d60c"
+checksum = "a64c907d4e79225ac72e2a354c9ce84d50ebb4586dee56c82b3ee73004f537f5"
 dependencies = [
- "windows-sys 0.59.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
 name = "anstyle-wincon"
-version = "3.0.6"
+version = "3.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2109dbce0e72be3ec00bed26e6a7479ca384ad226efdd66db8fa2e3a38c83125"
+checksum = "61a38449feb7068f52bb06c12759005cf459ee52bb4adc1d5a7c4322d716fb19"
 dependencies = [
  "anstyle",
- "windows-sys 0.59.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
 name = "anyhow"
-version = "1.0.93"
+version = "1.0.86"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c95c10ba0b00a02636238b814946408b1322d5ac4760326e6fb8ec956d85775"
+checksum = "b3d1d046238990b9cf5bcde22a3fb3584ee5cf65fb2765f454ed428c7a0063da"
 
 [[package]]
 name = "arc-swap"
@@ -107,15 +107,15 @@ checksum = "69f7f8c3906b62b754cd5326047894316021dcfe5a194c8ea52bdd94934a3457"
 
 [[package]]
 name = "arrayref"
-version = "0.3.9"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76a2e8124351fda1ef8aaaa3bbd7ebbcb486bbcd4225aca0aa0d84bb2db8fecb"
+checksum = "6b4930d2cb77ce62f89ee5d5289b4ac049559b1c45539271f5ed4fdc7db34545"
 
 [[package]]
 name = "arrayvec"
-version = "0.7.6"
+version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c02d123df017efcdfbd739ef81735b36c5ba83ec3c59c80a9d7ecc718f92e50"
+checksum = "96d30a06541fbafbc7f82ed10c06164cfbd2c401138f6addd8404629c4b16711"
 
 [[package]]
 name = "assert-json-diff"
@@ -141,9 +141,9 @@ dependencies = [
 
 [[package]]
 name = "async-stream"
-version = "0.3.6"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b5a71a6f37880a80d1d7f19efd781e4b5de42c88f0722cc13bcb6cc2cfe8476"
+checksum = "cd56dd203fef61ac097dd65721a419ddccb106b2d2b70ba60a6b529f03961a51"
 dependencies = [
  "async-stream-impl",
  "futures-core",
@@ -152,13 +152,13 @@ dependencies = [
 
 [[package]]
 name = "async-stream-impl"
-version = "0.3.6"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c7c24de15d275a1ecfd47a380fb4d5ec9bfe0933f309ed5e705b775596a3574d"
+checksum = "16e62a023e7c117e27523144c5d2459f4397fcc3cab0085af8e2224f643a0193"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -169,7 +169,16 @@ checksum = "721cae7de5c34fbb2acd27e21e6d2cf7b886dce0c27388d46c4e6c47ea4318dd"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
+]
+
+[[package]]
+name = "atomic"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d818003e740b63afc82337e3160717f4f63078720a810b7b903e70a5d1d2994"
+dependencies = [
+ "bytemuck",
 ]
 
 [[package]]
@@ -180,9 +189,9 @@ checksum = "1505bd5d3d116872e7271a6d4e16d81d0c8570876c8de68093a09ac269d8aac0"
 
 [[package]]
 name = "autocfg"
-version = "1.4.0"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
+checksum = "0c4b4d0bd25bd0b74681c0ad21497610ce1b7c91b1022cd21c80c6fbdd9476b0"
 
 [[package]]
 name = "aws-config"
@@ -362,9 +371,9 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-eventstream"
-version = "0.60.5"
+version = "0.60.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cef7d0a272725f87e51ba2bf89f8c21e4df61b9e49ae1ac367a6d69916ef7c90"
+checksum = "e6363078f927f612b970edf9d1903ef5cef9a64d1e8423525ebb1f0a1633c858"
 dependencies = [
  "aws-smithy-types",
  "bytes",
@@ -447,7 +456,7 @@ dependencies = [
  "httparse",
  "hyper 0.14.31",
  "hyper-rustls",
- "indexmap 2.6.0",
+ "indexmap 2.2.6",
  "once_cell",
  "pin-project-lite",
  "pin-utils",
@@ -504,9 +513,9 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-xml"
-version = "0.60.9"
+version = "0.60.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab0b0166827aa700d3dc519f72f8b3a91c35d0b8d042dc5d643a91e6f80648fc"
+checksum = "d123fbc2a4adc3c301652ba8e149bf4bc1d1725affb9784eb20c953ace06bf55"
 dependencies = [
  "xmlparser",
 ]
@@ -574,17 +583,17 @@ dependencies = [
 
 [[package]]
 name = "backtrace"
-version = "0.3.74"
+version = "0.3.72"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d82cb332cdfaed17ae235a638438ac4d4839913cc2af585c3c6746e8f8bee1a"
+checksum = "17c6a35df3749d2e8bb1b7b21a976d82b15548788d2735b9d82f329268f71a11"
 dependencies = [
  "addr2line",
+ "cc",
  "cfg-if",
  "libc",
  "miniz_oxide",
  "object",
  "rustc-demangle",
- "windows-targets",
 ]
 
 [[package]]
@@ -626,9 +635,9 @@ checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
 
 [[package]]
 name = "blake3"
-version = "1.5.4"
+version = "1.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d82033247fd8e890df8f740e407ad4d038debb9eb1f40533fffb32e7d17dc6f7"
+checksum = "b8ee0c1824c4dea5b5f81736aff91bae041d2c07ee1192bec91054e10e3e601e"
 dependencies = [
  "arrayref",
  "arrayvec",
@@ -655,14 +664,20 @@ checksum = "79296716171880943b8470b5f8d03aa55eb2e645a4874bdbb28adb49162e012c"
 
 [[package]]
 name = "byte-unit"
-version = "5.1.6"
+version = "5.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e1cd29c3c585209b0cbc7309bfe3ed7efd8c84c21b7af29c8bfae908f8777174"
+checksum = "33ac19bdf0b2665407c39d82dbc937e951e7e2001609f0fb32edd0af45a2d63e"
 dependencies = [
  "rust_decimal",
  "utf8-width",
 ]
 
+[[package]]
+name = "bytemuck"
+version = "1.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b37c88a63ffd85d15b406896cc343916d7cf57838a847b3a6f2ca5d39a5695a"
+
 [[package]]
 name = "byteorder"
 version = "1.5.0"
@@ -671,9 +686,9 @@ checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
 [[package]]
 name = "bytes"
-version = "1.8.0"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ac0150caa2ae65ca5bd83f25c7de183dea78d4d366469f148435e2acfbad0da"
+checksum = "325918d6fe32f23b19878fe4b34794ae41fc19ddbe53b10571a4874d44ffd39b"
 
 [[package]]
 name = "bytes-utils"
@@ -687,9 +702,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.2.1"
+version = "1.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd9de9f2205d5ef3fd67e685b0df337994ddd4495e2a28d185500d0e1edfea47"
+checksum = "27f657647bcff5394bf56c7317665bbf790a137a50eaaa5c6bfbb9e27a518f2d"
 dependencies = [
  "shlex",
 ]
@@ -702,9 +717,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "clap"
-version = "4.5.21"
+version = "4.5.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb3b4b9e5a7c7514dfa52869339ee98b3156b0bfb4e8a77c4ff4babb64b1604f"
+checksum = "3135e7ec2ef7b10c6ed8950f0f792ed96ee093fa088608f1c76e569722700c84"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -712,9 +727,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.21"
+version = "4.5.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b17a95aa67cc7b5ebd32aa5370189aa0d79069ef1c64ce893bd30fb24bff20ec"
+checksum = "30582fc632330df2bd26877bde0c1f4470d57c582bbc070376afcd04d8cb4838"
 dependencies = [
  "anstream",
  "anstyle",
@@ -731,20 +746,20 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
 name = "clap_lex"
-version = "0.7.3"
+version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "afb84c814227b90d6895e01398aee0d8033c00e7466aca416fb6a8e0eb19d8a7"
+checksum = "f46ad14479a25103f283c0f10005961cf086d8dc42205bb44c46ac563475dca6"
 
 [[package]]
 name = "colorchoice"
-version = "1.0.3"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b63caa9aa9397e2d9480a9b13673856c78d8ac123288526c37d7839f2a86990"
+checksum = "0b6a852b24ab71dffc585bcb46eaf7959d175cb865a7152e35b348d1b2960422"
 
 [[package]]
 name = "concurrent-queue"
@@ -794,18 +809,18 @@ dependencies = [
 
 [[package]]
 name = "const_format"
-version = "0.2.33"
+version = "0.2.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50c655d81ff1114fb0dcdea9225ea9f0cc712a6f8d189378e82bdf62a473a64b"
+checksum = "126f97965c8ad46d6d9163268ff28432e8f6a1196a55578867832e3049df63dd"
 dependencies = [
  "const_format_proc_macros",
 ]
 
 [[package]]
 name = "const_format_proc_macros"
-version = "0.2.33"
+version = "0.2.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eff1a44b93f47b1bac19a27932f5c591e43d1ba357ee4f61526c8a25603f0eb1"
+checksum = "1d57c2eccfb16dbac1f4e61e206105db5820c9d26c3c472bc17c774259ef7744"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -836,15 +851,15 @@ dependencies = [
 
 [[package]]
 name = "core-foundation-sys"
-version = "0.8.7"
+version = "0.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "773648b94d0e5d620f64f280777445740e61fe701025087ec8b57f45c791888b"
+checksum = "06ea2b9bc92be3c2baa9334a323ebca2d6f074ff852cd1d7b11064035cd3868f"
 
 [[package]]
 name = "cpufeatures"
-version = "0.2.16"
+version = "0.2.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "16b80225097f2e5ae4e7179dd2266824648f3e2f49d9134d584b76389d31c4c3"
+checksum = "53fe5e26ff1b7aef8bca9c6080520cfb8d9333c7568e1829cef191a9723e5504"
 dependencies = [
  "libc",
 ]
@@ -933,22 +948,11 @@ dependencies = [
  "subtle",
 ]
 
-[[package]]
-name = "displaydoc"
-version = "0.2.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97369cbbc041bc366949bc74d34658d6cda5621039731c6310521892a3a20ae0"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.89",
-]
-
 [[package]]
 name = "either"
-version = "1.13.0"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "60b1af1c220855b6ceac025d3f6ecdd2b7c4894bfe9cd9bda4fbb4bc7c0d4cf0"
+checksum = "3dca9240753cf90908d7e4aac30f630662b02aebaa1b58a3cadabdb23385b58b"
 
 [[package]]
 name = "equivalent"
@@ -1001,9 +1005,9 @@ dependencies = [
 
 [[package]]
 name = "fastrand"
-version = "2.2.0"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "486f806e73c5707928240ddc295403b1b93c96a02038563881c4a2fd84b81ac4"
+checksum = "9fc0510504f03c51ada170672ac806f1f105a88aa97a5281117e1ddc3368e51a"
 
 [[package]]
 name = "filetime"
@@ -1025,9 +1029,9 @@ checksum = "0ce7134b9999ecaf8bcd65542e436736ef32ddca1b3e06094cb6ec5755203b80"
 
 [[package]]
 name = "flate2"
-version = "1.0.35"
+version = "1.0.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c936bfdafb507ebbf50b8074c54fa31c5be9a1e7e5f467dd659697041407d07c"
+checksum = "5f54427cfd1c7829e2a139fcefea601bf088ebca651d2bf53ebc600eac295dae"
 dependencies = [
  "crc32fast",
  "miniz_oxide",
@@ -1087,13 +1091,13 @@ dependencies = [
  "parking_lot",
  "rand",
  "redis-protocol",
- "rustls 0.23.18",
- "rustls-native-certs 0.7.3",
+ "rustls 0.23.19",
+ "rustls-native-certs 0.7.0",
  "semver",
  "sha-1",
  "socket2",
  "tokio",
- "tokio-rustls 0.26.0",
+ "tokio-rustls 0.26.1",
  "tokio-stream",
  "tokio-util",
  "url",
@@ -1108,14 +1112,14 @@ checksum = "1458c6e22d36d61507034d5afecc64f105c1d39712b7ac6ec3b352c423f715cc"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
 name = "futures"
-version = "0.3.31"
+version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "65bc07b1a8bc7c85c5f2e110c476c7389b4554ba72af57d8445ea63a576b0876"
+checksum = "645c6916888f6cb6350d2550b80fb63e734897a8498abe35cfb732b6487804b0"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -1128,9 +1132,9 @@ dependencies = [
 
 [[package]]
 name = "futures-channel"
-version = "0.3.31"
+version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2dff15bf788c671c1934e366d07e30c1814a8ef514e1af724a602e8a2fbe1b10"
+checksum = "eac8f7d7865dcb88bd4373ab671c8cf4508703796caa2b1985a9ca867b3fcb78"
 dependencies = [
  "futures-core",
  "futures-sink",
@@ -1138,15 +1142,15 @@ dependencies = [
 
 [[package]]
 name = "futures-core"
-version = "0.3.31"
+version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05f29059c0c2090612e8d742178b0580d2dc940c837851ad723096f87af6663e"
+checksum = "dfc6580bb841c5a68e9ef15c77ccc837b40a7504914d52e47b8b0e9bbda25a1d"
 
 [[package]]
 name = "futures-executor"
-version = "0.3.31"
+version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e28d1d997f585e54aebc3f97d39e72338912123a67330d723fdbb564d646c9f"
+checksum = "a576fc72ae164fca6b9db127eaa9a9dda0d61316034f33a0a0d4eda41f02b01d"
 dependencies = [
  "futures-core",
  "futures-task",
@@ -1155,38 +1159,38 @@ dependencies = [
 
 [[package]]
 name = "futures-io"
-version = "0.3.31"
+version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e5c1b78ca4aae1ac06c48a526a655760685149f0d465d21f37abfe57ce075c6"
+checksum = "a44623e20b9681a318efdd71c299b6b222ed6f231972bfe2f224ebad6311f0c1"
 
 [[package]]
 name = "futures-macro"
-version = "0.3.31"
+version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "162ee34ebcb7c64a8abebc059ce0fee27c2262618d7b60ed8faf72fef13c3650"
+checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
 name = "futures-sink"
-version = "0.3.31"
+version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e575fab7d1e0dcb8d0c7bcf9a63ee213816ab51902e6d244a95819acacf1d4f7"
+checksum = "9fb8e00e87438d937621c1c6269e53f536c14d3fbd6a042bb24879e57d474fb5"
 
 [[package]]
 name = "futures-task"
-version = "0.3.31"
+version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f90f7dce0722e95104fcb095585910c0977252f286e354b5e3bd38902cd99988"
+checksum = "38d84fa142264698cdce1a9f9172cf383a0c82de1bddcf3092901442c4097004"
 
 [[package]]
 name = "futures-util"
-version = "0.3.31"
+version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9fa08315bb612088cc391249efdc3bc77536f16c91f6cf495e6fbe85b20a4a81"
+checksum = "3d6401deb83407ab3da39eba7e33987a73c3df0c82b4bb5813ee871c19c41d48"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -1223,9 +1227,9 @@ dependencies = [
 
 [[package]]
 name = "gimli"
-version = "0.31.1"
+version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07e28edb80900c19c28f1072f2e8aeca7fa06b23cd4169cefe1af5aa3260783f"
+checksum = "40ecd4077b5ae9fd2e9e169b102c6c330d0605168eb0e8bf79952b256dbefffd"
 
 [[package]]
 name = "glob"
@@ -1245,7 +1249,7 @@ dependencies = [
  "futures-sink",
  "futures-util",
  "http 0.2.12",
- "indexmap 2.6.0",
+ "indexmap 2.2.6",
  "slab",
  "tokio",
  "tokio-util",
@@ -1264,7 +1268,7 @@ dependencies = [
  "futures-core",
  "futures-sink",
  "http 1.1.0",
- "indexmap 2.6.0",
+ "indexmap 2.2.6",
  "slab",
  "tokio",
  "tokio-util",
@@ -1277,6 +1281,12 @@ version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 
+[[package]]
+name = "hashbrown"
+version = "0.14.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
+
 [[package]]
 name = "hashbrown"
 version = "0.15.2"
@@ -1307,12 +1317,6 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
-[[package]]
-name = "hermit-abi"
-version = "0.3.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d231dfb89cfffdbc30e7fc41579ed6066ad03abda9e567ccafae602b97ec5024"
-
 [[package]]
 name = "hex"
 version = "0.4.3"
@@ -1386,9 +1390,9 @@ dependencies = [
 
 [[package]]
 name = "httparse"
-version = "1.9.5"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7d71d3574edd2771538b901e6549113b4006ece66150fb69c0fb6d9a2adae946"
+checksum = "d897f394bad6a705d5f4104762e116a75639e470d80901eed05a860a95cb1904"
 
 [[package]]
 name = "httpdate"
@@ -1496,143 +1500,14 @@ dependencies = [
  "tracing",
 ]
 
-[[package]]
-name = "icu_collections"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db2fa452206ebee18c4b5c2274dbf1de17008e874b4dc4f0aea9d01ca79e4526"
-dependencies = [
- "displaydoc",
- "yoke",
- "zerofrom",
- "zerovec",
-]
-
-[[package]]
-name = "icu_locid"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13acbb8371917fc971be86fc8057c41a64b521c184808a698c02acc242dbf637"
-dependencies = [
- "displaydoc",
- "litemap",
- "tinystr",
- "writeable",
- "zerovec",
-]
-
-[[package]]
-name = "icu_locid_transform"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "01d11ac35de8e40fdeda00d9e1e9d92525f3f9d887cdd7aa81d727596788b54e"
-dependencies = [
- "displaydoc",
- "icu_locid",
- "icu_locid_transform_data",
- "icu_provider",
- "tinystr",
- "zerovec",
-]
-
-[[package]]
-name = "icu_locid_transform_data"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fdc8ff3388f852bede6b579ad4e978ab004f139284d7b28715f773507b946f6e"
-
-[[package]]
-name = "icu_normalizer"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19ce3e0da2ec68599d193c93d088142efd7f9c5d6fc9b803774855747dc6a84f"
-dependencies = [
- "displaydoc",
- "icu_collections",
- "icu_normalizer_data",
- "icu_properties",
- "icu_provider",
- "smallvec",
- "utf16_iter",
- "utf8_iter",
- "write16",
- "zerovec",
-]
-
-[[package]]
-name = "icu_normalizer_data"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8cafbf7aa791e9b22bec55a167906f9e1215fd475cd22adfcf660e03e989516"
-
-[[package]]
-name = "icu_properties"
-version = "1.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93d6020766cfc6302c15dbbc9c8778c37e62c14427cb7f6e601d849e092aeef5"
-dependencies = [
- "displaydoc",
- "icu_collections",
- "icu_locid_transform",
- "icu_properties_data",
- "icu_provider",
- "tinystr",
- "zerovec",
-]
-
-[[package]]
-name = "icu_properties_data"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "67a8effbc3dd3e4ba1afa8ad918d5684b8868b3b26500753effea8d2eed19569"
-
-[[package]]
-name = "icu_provider"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ed421c8a8ef78d3e2dbc98a973be2f3770cb42b606e3ab18d6237c4dfde68d9"
-dependencies = [
- "displaydoc",
- "icu_locid",
- "icu_provider_macros",
- "stable_deref_trait",
- "tinystr",
- "writeable",
- "yoke",
- "zerofrom",
- "zerovec",
-]
-
-[[package]]
-name = "icu_provider_macros"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ec89e9337638ecdc08744df490b221a7399bf8d164eb52a665454e60e075ad6"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.89",
-]
-
 [[package]]
 name = "idna"
-version = "1.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "686f825264d630750a544639377bae737628043f20d38bbc029e8f29ea968a7e"
-dependencies = [
- "idna_adapter",
- "smallvec",
- "utf8_iter",
-]
-
-[[package]]
-name = "idna_adapter"
-version = "1.2.0"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "daca1df1c957320b2cf139ac61e7bd64fed304c5040df000a745aa1de3b4ef71"
+checksum = "634d9b1461af396cad843f47fdba5597a4f9e6ddd4bfb6ff5d85028c25cb12f6"
 dependencies = [
- "icu_normalizer",
- "icu_properties",
+ "unicode-bidi",
+ "unicode-normalization",
 ]
 
 [[package]]
@@ -1647,56 +1522,57 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "2.6.0"
+version = "2.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "707907fe3c25f5424cce2cb7e1cbcafee6bdbe735ca90ef77c29e84591e5b9da"
+checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
 dependencies = [
  "equivalent",
- "hashbrown 0.15.2",
+ "hashbrown 0.14.5",
  "serde",
 ]
 
 [[package]]
 name = "is_terminal_polyfill"
-version = "1.70.1"
+version = "1.70.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
+checksum = "f8478577c03552c21db0e2724ffb8986a5ce7af88107e6be5d2ee6e158c12800"
 
 [[package]]
 name = "itertools"
-version = "0.13.0"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "413ee7dfc52ee1a4949ceeb7dbc8a33f2d6c088194d9f922fb8318faf1f01186"
+checksum = "ba291022dbbd398a455acf126c1e341954079855bc60dfdda641363bd6922569"
 dependencies = [
  "either",
 ]
 
 [[package]]
 name = "itoa"
-version = "1.0.14"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d75a2a4b1b190afb6f5425f10f6a8f959d2ea0b9c2b1d79553551850539e4674"
+checksum = "49f1f14873335454500d59611f1cf4a4b0f786f9ac11f4312a78e4cf2566695b"
 
 [[package]]
 name = "js-sys"
-version = "0.3.72"
+version = "0.3.76"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a88f1bda2bd75b0452a14784937d796722fdebfe50df998aeb3f0b7603019a9"
+checksum = "6717b6b5b077764fb5966237269cb3c64edddde4b14ce42647430a78ced9e7b7"
 dependencies = [
+ "once_cell",
  "wasm-bindgen",
 ]
 
 [[package]]
 name = "lazy_static"
-version = "1.5.0"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
+checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.166"
+version = "0.2.168"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2ccc108bbc0b1331bd061864e7cd823c0cab660bbe6970e66e2c0614decde36"
+checksum = "5aaeb2981e0606ca11d79718f8bb01164f1d6ed75080182d3abf017e6d244b6d"
 
 [[package]]
 name = "libmimalloc-sys"
@@ -1725,12 +1601,6 @@ version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78b3ae25bc7c8c38cec158d1f2757ee79e9b3740fbc7ccf0e59e4b08d793fa89"
 
-[[package]]
-name = "litemap"
-version = "0.7.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ee93343901ab17bd981295f2cf0026d4ad018c7c31ba84549a4ddbb47a45104"
-
 [[package]]
 name = "lock_api"
 version = "0.4.12"
@@ -1743,9 +1613,9 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.22"
+version = "0.4.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
+checksum = "90ed8c1e510134f979dbc4f070f87d4313098b704861a105fe34231c70a3901c"
 
 [[package]]
 name = "lru"
@@ -1795,15 +1665,15 @@ dependencies = [
 
 [[package]]
 name = "memchr"
-version = "2.7.4"
+version = "2.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
+checksum = "6c8640c5d730cb13ebd907d8d04b52f55ac9a2eec55b440c8892f40d56c76c1d"
 
 [[package]]
 name = "memmap2"
-version = "0.9.5"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd3f7eed9d3848f8b98834af67102b720745c4ec028fcd0aa0239277e7de374f"
+checksum = "fe751422e4a8caa417e13c3ea66452215d7d63e19e604f4980461212f3ae1322"
 dependencies = [
  "libc",
 ]
@@ -1841,20 +1711,19 @@ checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
 
 [[package]]
 name = "miniz_oxide"
-version = "0.8.0"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2d80299ef12ff69b16a84bb182e3b9df68b5a91574d3d4fa6e41b65deec4df1"
+checksum = "87dfd01fe195c66b572b37921ad8803d010623c0aca821bea2302239d155cdae"
 dependencies = [
- "adler2",
+ "adler",
 ]
 
 [[package]]
 name = "mio"
-version = "1.0.2"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "80e04d1dcff3aae0704555fe5fee3bcfaf3d1fdf8a7e521d5b9d2b42acb52cec"
+checksum = "2886843bf800fba2e3377cff24abf6379b4c4d5c6681eaf9ea5b0d15090450bd"
 dependencies = [
- "hermit-abi",
  "libc",
  "wasi",
  "windows-sys 0.52.0",
@@ -1902,7 +1771,7 @@ dependencies = [
  "serde_json",
  "serde_json5",
  "tokio",
- "tokio-rustls 0.26.0",
+ "tokio-rustls 0.26.1",
  "tonic",
  "tower 0.5.1",
  "tracing",
@@ -1942,7 +1811,7 @@ version = "0.5.3"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -1979,7 +1848,7 @@ version = "0.5.3"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -2120,6 +1989,7 @@ version = "0.5.3"
 dependencies = [
  "async-lock",
  "async-trait",
+ "base64 0.22.1",
  "bitflags",
  "blake3",
  "bytes",
@@ -2150,6 +2020,7 @@ dependencies = [
  "tokio-stream",
  "tokio-util",
  "tonic",
+ "tower 0.5.1",
  "tracing",
  "tracing-subscriber",
  "uuid",
@@ -2236,18 +2107,18 @@ dependencies = [
 
 [[package]]
 name = "object"
-version = "0.36.5"
+version = "0.35.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aedf0a2d09c573ed1d8d85b30c119153926a2b36dce0ab28322c09a117a4683e"
+checksum = "b8ec7ab813848ba4522158d5517a6093db1ded27575b070f4177b8d12b41db5e"
 dependencies = [
  "memchr",
 ]
 
 [[package]]
 name = "once_cell"
-version = "1.20.2"
+version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1261fe7e33c73b354eab43b1273a57c8f967d0391e80353e51f764ac02cf6775"
+checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
 [[package]]
 name = "openssl-probe"
@@ -2312,9 +2183,9 @@ checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
 
 [[package]]
 name = "parking"
-version = "2.2.1"
+version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f38d5652c16fde515bb1ecef450ab0f6a219d619a7274976324d5e377f7dceba"
+checksum = "bb813b8af86854136c6922af0598d719255ecb2179515e6e7730d468f05c9cae"
 
 [[package]]
 name = "parking_lot"
@@ -2356,9 +2227,9 @@ checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
 
 [[package]]
 name = "pest"
-version = "2.7.14"
+version = "2.7.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "879952a81a83930934cbf1786752d6dedc3b1f29e8f8fb2ad1d0a36f377cf442"
+checksum = "560131c633294438da9f7c4b08189194b20946c8274c6b9e38881a7874dc8ee8"
 dependencies = [
  "memchr",
  "thiserror",
@@ -2367,9 +2238,9 @@ dependencies = [
 
 [[package]]
 name = "pest_derive"
-version = "2.7.14"
+version = "2.7.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d214365f632b123a47fd913301e14c946c61d1c183ee245fa76eb752e59a02dd"
+checksum = "26293c9193fbca7b1a3bf9b79dc1e388e927e6cacaa78b4a3ab705a1d3d41459"
 dependencies = [
  "pest",
  "pest_generator",
@@ -2377,22 +2248,22 @@ dependencies = [
 
 [[package]]
 name = "pest_generator"
-version = "2.7.14"
+version = "2.7.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb55586734301717aea2ac313f50b2eb8f60d2fc3dc01d190eefa2e625f60c4e"
+checksum = "3ec22af7d3fb470a85dd2ca96b7c577a1eb4ef6f1683a9fe9a8c16e136c04687"
 dependencies = [
  "pest",
  "pest_meta",
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
 name = "pest_meta"
-version = "2.7.14"
+version = "2.7.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b75da2a70cf4d9cb76833c990ac9cd3923c9a8905a8929789ce347c84564d03d"
+checksum = "d7a240022f37c361ec1878d646fc5b7d7c4d28d5946e1a80ad5a7a4f4ca0bdcd"
 dependencies = [
  "once_cell",
  "pest",
@@ -2406,34 +2277,34 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b4c5cc86750666a3ed20bdaf5ca2a0344f9c67674cae0515bec2da16fbaa47db"
 dependencies = [
  "fixedbitset",
- "indexmap 2.6.0",
+ "indexmap 2.2.6",
 ]
 
 [[package]]
 name = "pin-project"
-version = "1.1.7"
+version = "1.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "be57f64e946e500c8ee36ef6331845d40a93055567ec57e8fae13efd33759b95"
+checksum = "b6bf43b791c5b9e34c3d182969b4abb522f9343702850a2e57f460d00d09b4b3"
 dependencies = [
  "pin-project-internal",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "1.1.7"
+version = "1.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c0f5fad0874fc7abcd4d750e76917eaebbecaa2c20bde22e1dbeeba8beb758c"
+checksum = "2f38a4412a78282e09a2cf38d195ea5420d15ba0602cb375210efbc877243965"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
 name = "pin-project-lite"
-version = "0.2.15"
+version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "915a1e146535de9163f3987b8944ed8cf49a18bb0056bcebcdcece385cece4ff"
+checksum = "bda66fc9667c18cb2758a2ac84d1167245054bcf85d5d1aaa6923f45801bdd02"
 
 [[package]]
 name = "pin-utils"
@@ -2449,12 +2320,9 @@ checksum = "439ee305def115ba05938db6eb1644ff94165c5ab5e9420d1c1bcedbba909391"
 
 [[package]]
 name = "ppv-lite86"
-version = "0.2.20"
+version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77957b295656769bb8ad2b6a6b09d897d94f05c41b069aede1fcdaa675eaea04"
-dependencies = [
- "zerocopy",
-]
+checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
 
 [[package]]
 name = "pretty_assertions"
@@ -2468,12 +2336,12 @@ dependencies = [
 
 [[package]]
 name = "prettyplease"
-version = "0.2.25"
+version = "0.2.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64d1ec885c64d0457d564db4ec299b2dae3f9c02808b8ad9c3a089c591b18033"
+checksum = "5f12335488a2f3b0a83b14edad48dca9879ce89b2edd10e80237e4e852dd645e"
 dependencies = [
  "proc-macro2",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -2502,9 +2370,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.92"
+version = "1.0.86"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37d3544b3f2748c54e147655edb5025752e2303145b5aefb3c3ea2c78b973bb0"
+checksum = "5e719e8df665df0d1c8fbfd238015744736151d4445ec0836b8e628aae103b77"
 dependencies = [
  "unicode-ident",
 ]
@@ -2526,9 +2394,9 @@ dependencies = [
 
 [[package]]
 name = "prost"
-version = "0.13.3"
+version = "0.13.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b0487d90e047de87f984913713b85c601c05609aad5b0df4b4573fbf69aa13f"
+checksum = "2c0fef6c4230e4ccf618a35c59d7ede15dea37de8427500f50aff708806e42ec"
 dependencies = [
  "bytes",
  "prost-derive",
@@ -2536,11 +2404,10 @@ dependencies = [
 
 [[package]]
 name = "prost-build"
-version = "0.13.3"
+version = "0.13.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c1318b19085f08681016926435853bbf7858f9c082d0999b80550ff5d9abe15"
+checksum = "d0f3e5beed80eb580c68e2c600937ac2c4eedabdfd5ef1e5b7ea4f3fba84497b"
 dependencies = [
- "bytes",
  "heck",
  "itertools",
  "log",
@@ -2551,28 +2418,28 @@ dependencies = [
  "prost",
  "prost-types",
  "regex",
- "syn 2.0.89",
+ "syn 2.0.87",
  "tempfile",
 ]
 
 [[package]]
 name = "prost-derive"
-version = "0.13.3"
+version = "0.13.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e9552f850d5f0964a4e4d0bf306459ac29323ddfbae05e35a7c0d35cb0803cc5"
+checksum = "157c5a9d7ea5c2ed2d9fb8f495b64759f7816c7eaea54ba3978f0d63000162e3"
 dependencies = [
  "anyhow",
  "itertools",
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
 name = "prost-types"
-version = "0.13.3"
+version = "0.13.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4759aa0d3a6232fb8dbdb97b61de2c20047c68aca932c7ed76da9d788508d670"
+checksum = "cc2f1e56baa61e93533aebc21af4d2134b70f66275e0fcdf3cbe43d77ff7e8fc"
 dependencies = [
  "prost",
 ]
@@ -2638,23 +2505,23 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.5.7"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b6dfecf2c74bce2466cabf93f6664d6998a69eb21e39f4207930065b27b771f"
+checksum = "469052894dcb553421e483e4209ee581a45100d31b4018de03e5a7ad86374a7e"
 dependencies = [
  "bitflags",
 ]
 
 [[package]]
 name = "regex"
-version = "1.11.1"
+version = "1.10.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b544ef1b4eac5dc2db33ea63606ae9ffcfac26c1416a2806ae0bf5f56b201191"
+checksum = "c117dbdfde9c8308975b6a18d71f3f385c89461f7b3fb054288ecf2a2058ba4c"
 dependencies = [
  "aho-corasick",
  "memchr",
- "regex-automata 0.4.9",
- "regex-syntax 0.8.5",
+ "regex-automata 0.4.6",
+ "regex-syntax 0.8.3",
 ]
 
 [[package]]
@@ -2668,20 +2535,20 @@ dependencies = [
 
 [[package]]
 name = "regex-automata"
-version = "0.4.9"
+version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "809e8dc61f6de73b46c85f4c96486310fe304c434cfa43669d7b40f711150908"
+checksum = "86b83b8b9847f9bf95ef68afb0b8e6cdb80f498442f5179a29fad448fcc1eaea"
 dependencies = [
  "aho-corasick",
  "memchr",
- "regex-syntax 0.8.5",
+ "regex-syntax 0.8.3",
 ]
 
 [[package]]
 name = "regex-lite"
-version = "0.1.6"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53a49587ad06b26609c52e423de037e7f57f20d53535d66e08c695f347df952a"
+checksum = "30b661b2f27137bdbc16f00eda72866a92bb28af1753ffbd56744fb6e2e9cd8e"
 
 [[package]]
 name = "regex-syntax"
@@ -2691,9 +2558,9 @@ checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1"
 
 [[package]]
 name = "regex-syntax"
-version = "0.8.5"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
+checksum = "adad44e29e4c806119491a7f06f03de4d1af22c3a680dd47f1e6e179439d1f56"
 
 [[package]]
 name = "relative-path"
@@ -2727,9 +2594,9 @@ dependencies = [
 
 [[package]]
 name = "rust_decimal"
-version = "1.36.0"
+version = "1.35.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b082d80e3e3cc52b2ed634388d436fe1f4de6af5786cc2de9ba9737527bdf555"
+checksum = "1790d1c4c0ca81211399e0e0af16333276f375209e71a37b67698a373db5b47a"
 dependencies = [
  "arrayvec",
  "num-traits",
@@ -2743,18 +2610,18 @@ checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
 
 [[package]]
 name = "rustc_version"
-version = "0.4.1"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cfcb3a22ef46e85b45de6ee7e79d063319ebb6594faafcf1c225ea92ab6e9b92"
+checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
 dependencies = [
  "semver",
 ]
 
 [[package]]
 name = "rustix"
-version = "0.38.41"
+version = "0.38.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7f649912bc1495e167a6edee79151c84b1bad49748cb4f1f1167f459f6224f6"
+checksum = "70dc5ec042f7a43c4a73241207cecc9873a06d45debb38b329f8541d85c2730f"
 dependencies = [
  "bitflags",
  "errno",
@@ -2777,9 +2644,9 @@ dependencies = [
 
 [[package]]
 name = "rustls"
-version = "0.23.18"
+version = "0.23.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c9cc1d47e243d655ace55ed38201c19ae02c148ae56412ab8750e8f0166ab7f"
+checksum = "934b404430bb06b3fae2cba809eb45a1ab1aecd64491213d7c3301b88393f8d1"
 dependencies = [
  "log",
  "once_cell",
@@ -2804,9 +2671,9 @@ dependencies = [
 
 [[package]]
 name = "rustls-native-certs"
-version = "0.7.3"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e5bfb394eeed242e909609f56089eecfe5fda225042e8b171791b9c95f5931e5"
+checksum = "8f1fb85efa936c42c6d5fc28d2629bb51e4b2f4b8a5211e297d599cc5a093792"
 dependencies = [
  "openssl-probe",
  "rustls-pemfile 2.2.0",
@@ -2862,9 +2729,9 @@ dependencies = [
 
 [[package]]
 name = "rustversion"
-version = "1.0.18"
+version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e819f2bc632f285be6d7cd36e25940d45b2391dd6d9b939e79de557f7014248"
+checksum = "955d28af4278de8121b7ebeb796b6a45735dc01436d898801014aced2773a3d6"
 
 [[package]]
 name = "ryu"
@@ -2874,20 +2741,20 @@ checksum = "f3cb5ba0dc43242ce17de99c180e96db90b235b8a9fdc9543c96d2209116bd9f"
 
 [[package]]
 name = "scc"
-version = "2.2.5"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "66b202022bb57c049555430e11fc22fea12909276a80a4c3d368da36ac1d88ed"
+checksum = "76ad2bbb0ae5100a07b7a6f2ed7ab5fd0045551a4c507989b7a620046ea3efdc"
 dependencies = [
  "sdd",
 ]
 
 [[package]]
 name = "schannel"
-version = "0.1.27"
+version = "0.1.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1f29ebaa345f945cec9fbbc532eb307f0fdad8161f281b6369539c8d84876b3d"
+checksum = "fbc91545643bcf3a0bbb6569265615222618bdf33ce4ffbbd13c4bbd4c093534"
 dependencies = [
- "windows-sys 0.59.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -2908,15 +2775,15 @@ dependencies = [
 
 [[package]]
 name = "sdd"
-version = "3.0.4"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49c1eeaf4b6a87c7479688c6d52b9f1153cedd3c489300564f932b065c6eab95"
+checksum = "b84345e4c9bd703274a082fb80caaa99b7612be48dfaa1dd9266577ec412309d"
 
 [[package]]
 name = "security-framework"
-version = "2.11.1"
+version = "2.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "897b2245f0b511c87893af39b033e5ca9cce68824c4d7e7630b5a1d339658d02"
+checksum = "c627723fd09706bacdb5cf41499e95098555af3c3c29d014dc3c458ef6be11c0"
 dependencies = [
  "bitflags",
  "core-foundation",
@@ -2927,9 +2794,9 @@ dependencies = [
 
 [[package]]
 name = "security-framework-sys"
-version = "2.12.1"
+version = "2.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa39c7303dc58b5543c94d22c1766b0d31f2ee58306363ea622b10bbc075eaa2"
+checksum = "317936bbbd05227752583946b9e66d7ce3b489f84e11a94a510b4437fef407d7"
 dependencies = [
  "core-foundation-sys",
  "libc",
@@ -2958,7 +2825,7 @@ checksum = "ad1e866f866923f252f05c889987993144fb74e722403468a4ebd70c3cd756c0"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -2967,7 +2834,7 @@ version = "1.0.133"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c7fceb2473b9166b2294ef05efcb65a3db80803f0b03ef86a5fc88a2b85ee377"
 dependencies = [
- "indexmap 2.6.0",
+ "indexmap 2.2.6",
  "itoa",
  "memchr",
  "ryu",
@@ -2987,9 +2854,9 @@ dependencies = [
 
 [[package]]
 name = "serial_test"
-version = "3.2.0"
+version = "3.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1b258109f244e1d6891bf1053a55d63a5cd4f8f4c30cf9a1280989f80e7a1fa9"
+checksum = "4b4b487fe2acf240a021cf57c6b2b4903b1e78ca0ecd862a71b71d2a51fed77d"
 dependencies = [
  "futures",
  "once_cell",
@@ -3000,13 +2867,13 @@ dependencies = [
 
 [[package]]
 name = "serial_test_derive"
-version = "3.2.0"
+version = "3.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d69265a08751de7844521fd15003ae0a888e035773ba05695c5c759a6f89eef"
+checksum = "82fe9db325bcef1fbcde82e078a5cc4efdf787e96b3b9cf45b50b529f2083d67"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -3103,12 +2970,6 @@ version = "0.9.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
 
-[[package]]
-name = "stable_deref_trait"
-version = "1.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
-
 [[package]]
 name = "static_assertions"
 version = "1.1.0"
@@ -3123,9 +2984,9 @@ checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
 [[package]]
 name = "subtle"
-version = "2.6.1"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
+checksum = "81cdd64d312baedb58e21336b31bc043b77e01cc99033ce76ef539f78e965ebc"
 
 [[package]]
 name = "syn"
@@ -3140,9 +3001,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.89"
+version = "2.0.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44d46482f1c1c87acd84dea20c1bf5ebff4c757009ed6bf19cfd36fb10e92c4e"
+checksum = "25aa4ce346d03a6dcd68dd8b4010bcb74e54e62c90c573f394c46eae99aba32d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3161,48 +3022,36 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0bf256ce5efdfa370213c1dabab5935a12e49f2c58d15e9eac2870d3b4f27263"
 
-[[package]]
-name = "synstructure"
-version = "0.13.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8af7666ab7b6390ab78131fb5b0fce11d6b7a6951602017c35fa82800708971"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.89",
-]
-
 [[package]]
 name = "tempfile"
-version = "3.14.0"
+version = "3.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28cce251fcbc87fac86a866eeb0d6c2d536fc16d06f184bb61aeae11aa4cee0c"
+checksum = "85b77fafb263dd9d05cbeac119526425676db3784113aa9295c88498cbf8bff1"
 dependencies = [
  "cfg-if",
  "fastrand",
- "once_cell",
  "rustix",
- "windows-sys 0.59.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
 name = "thiserror"
-version = "1.0.69"
+version = "1.0.61"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6aaf5339b578ea85b50e080feb250a3e8ae8cfcdff9a461c9ec2904bc923f52"
+checksum = "c546c80d6be4bc6a00c0f01730c08df82eaa7a7a61f11d656526506112cc1709"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.69"
+version = "1.0.61"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fee6c4efc90059e10f81e6d42c60a18f76588c3d74cb83a0b242a2b6c7504c1"
+checksum = "46c3384250002a6d5af4d114f2845d37b57521033f30d5c3f46c4d70e1197533"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -3246,20 +3095,25 @@ dependencies = [
 ]
 
 [[package]]
-name = "tinystr"
-version = "0.7.6"
+name = "tinyvec"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9117f5d4db391c1cf6927e7bea3db74b9a1c1add8f7eda9ffd5364f40f57b82f"
+checksum = "87cc5ceb3875bb20c2890005a4e226a4651264a5c75edb2421b52861a0a0cb50"
 dependencies = [
- "displaydoc",
- "zerovec",
+ "tinyvec_macros",
 ]
 
+[[package]]
+name = "tinyvec_macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
+
 [[package]]
 name = "tokio"
-version = "1.41.1"
+version = "1.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22cfb5bee7a6a52939ca9224d6ac897bb669134078daa8735560897f69de4d33"
+checksum = "5cec9b21b0450273377fc97bd4c33a8acffc8c996c987a7c5b319a0083707551"
 dependencies = [
  "backtrace",
  "bytes",
@@ -3281,7 +3135,7 @@ checksum = "693d596312e88961bc67d7f1f97af8a70227d9f90c31bba5806eec004978d752"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -3296,20 +3150,19 @@ dependencies = [
 
 [[package]]
 name = "tokio-rustls"
-version = "0.26.0"
+version = "0.26.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c7bc40d0e5a97695bb96e27995cd3a08538541b0a846f65bba7a359f36700d4"
+checksum = "5f6d0975eaace0cf0fcadee4e4aaa5da15b5c079146f2cffb67c113be122bf37"
 dependencies = [
- "rustls 0.23.18",
- "rustls-pki-types",
+ "rustls 0.23.19",
  "tokio",
 ]
 
 [[package]]
 name = "tokio-stream"
-version = "0.1.16"
+version = "0.1.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f4e6ce100d0eb49a2734f8c0812bcd324cf357d21810932c5df6b96ef2b86f1"
+checksum = "eca58d7bba4a75707817a2c44174253f9236b2d5fbd055602e9d5c07c139a047"
 dependencies = [
  "futures-core",
  "pin-project-lite",
@@ -3318,9 +3171,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-util"
-version = "0.7.12"
+version = "0.7.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61e7c3654c13bcd040d4a03abee2c75b1d14a37b423cf5a813ceae1cc903ec6a"
+checksum = "d7fcaa8d55a2bdd6b83ace262b016eca0d79ee02818c5c1bcdf0305114081078"
 dependencies = [
  "bytes",
  "futures-core",
@@ -3354,7 +3207,7 @@ dependencies = [
  "rustls-pemfile 2.2.0",
  "socket2",
  "tokio",
- "tokio-rustls 0.26.0",
+ "tokio-rustls 0.26.1",
  "tokio-stream",
  "tower 0.4.13",
  "tower-layer",
@@ -3373,7 +3226,7 @@ dependencies = [
  "prost-build",
  "prost-types",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -3435,20 +3288,20 @@ dependencies = [
 
 [[package]]
 name = "tracing-attributes"
-version = "0.1.28"
+version = "0.1.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "395ae124c09f9e6918a2310af6038fba074bcf474ac352496d5910dd59a2226d"
+checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
 ]
 
 [[package]]
 name = "tracing-core"
-version = "0.1.33"
+version = "0.1.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e672c95779cf947c5311f83787af4fa8fffd12fb27e4993211a84bdfd9610f9c"
+checksum = "c06d3da6113f116aaee68e4d601191614c9053067f9ab7f6edbcb161237daa54"
 dependencies = [
  "once_cell",
  "valuable",
@@ -3510,15 +3363,30 @@ checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
 
 [[package]]
 name = "ucd-trie"
-version = "0.1.7"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed646292ffc8188ef8ea4d1e0e0150fb15a5c2e12ad9b8fc191ae7a8a7f3c4b9"
+
+[[package]]
+name = "unicode-bidi"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2896d95c02a80c6d6a5d6e953d479f5ddf2dfdb6a244441010e373ac0fb88971"
+checksum = "08f95100a766bf4f8f28f90d77e0a5461bbdb219042e7679bebe79004fed8d75"
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.14"
+version = "1.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "adb9e6ca4f869e1180728b7950e35922a7fc6397f7b641499e8f3ef06e50dc83"
+checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
+
+[[package]]
+name = "unicode-normalization"
+version = "0.1.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a56d1686db2308d901306f92a263857ef59ea39678a5458e7cb17f01415101f5"
+dependencies = [
+ "tinyvec",
+]
 
 [[package]]
 name = "unicode-xid"
@@ -3534,9 +3402,9 @@ checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
 
 [[package]]
 name = "url"
-version = "2.5.4"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "32f8b686cadd1473f4bd0117a5d28d36b1ade384ea9b5069a1c40aefed7fda60"
+checksum = "31e6302e3bb753d46e83516cae55ae196fc0c309407cf11ab35cc51a4c2a4633"
 dependencies = [
  "form_urlencoded",
  "idna",
@@ -3549,29 +3417,17 @@ version = "2.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "daf8dba3b7eb870caf1ddeed7bc9d2a049f3cfdfae7cb521b087cc33ae4c49da"
 
-[[package]]
-name = "utf16_iter"
-version = "1.0.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8232dd3cdaed5356e0f716d285e4b40b932ac434100fe9b7e0e8e935b9e6246"
-
 [[package]]
 name = "utf8-width"
 version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "86bd8d4e895da8537e5315b8254664e6b769c4ff3db18321b297a1e7004392e3"
 
-[[package]]
-name = "utf8_iter"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6c140620e7ffbb22c2dee59cafe6084a59b5ffc27a8859a5f0d494b5d52b6be"
-
 [[package]]
 name = "utf8parse"
-version = "0.2.2"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
+checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
 
 [[package]]
 name = "uuid"
@@ -3579,6 +3435,7 @@ version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8c5f0a0af699448548ad1a2fbf920fb4bee257eae39953ba95cb84891a0446a"
 dependencies = [
+ "atomic",
  "getrandom",
  "serde",
 ]
@@ -3591,9 +3448,9 @@ checksum = "830b7e5d4d90034032940e4ace0d9a9a057e7a45cd94e6c007832e39edb82f6d"
 
 [[package]]
 name = "version_check"
-version = "0.9.5"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
 [[package]]
 name = "vsimd"
@@ -3618,9 +3475,9 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.95"
+version = "0.2.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "128d1e363af62632b8eb57219c8fd7877144af57558fb2ef0368d0087bddeb2e"
+checksum = "a474f6281d1d70c17ae7aa6a613c87fce69a127e2624002df63dcb39d6cf6396"
 dependencies = [
  "cfg-if",
  "once_cell",
@@ -3629,24 +3486,23 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.95"
+version = "0.2.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cb6dd4d3ca0ddffd1dd1c9c04f94b868c37ff5fac97c30b97cff2d74fce3a358"
+checksum = "5f89bb38646b4f81674e8f5c3fb81b562be1fd936d84320f3264486418519c79"
 dependencies = [
  "bumpalo",
  "log",
- "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.95"
+version = "0.2.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e79384be7f8f5a9dd5d7167216f022090cf1f9ec128e6e6a482a2cb5c5422c56"
+checksum = "2cc6181fd9a7492eef6fef1f33961e3695e4579b9872a6f7c83aee556666d4fe"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -3654,22 +3510,22 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.95"
+version = "0.2.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26c6ab57572f7a24a4985830b120de1594465e5d500f24afe89e16b4e833ef68"
+checksum = "30d7a95b763d3c45903ed6c81f156801839e5ee968bb07e534c44df0fcd330c2"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.89",
+ "syn 2.0.87",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.95"
+version = "0.2.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "65fc09f10666a9f147042251e0dda9c18f166ff7de300607007e96bdebc1068d"
+checksum = "943aab3fdaaa029a6e0271b35ea10b72b943135afe9bffca82384098ad0e06a6"
 
 [[package]]
 name = "webpki-roots"
@@ -3781,18 +3637,6 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
 
-[[package]]
-name = "write16"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d1890f4022759daae28ed4fe62859b1236caebfc61ede2f63ed4e695f3f6d936"
-
-[[package]]
-name = "writeable"
-version = "0.5.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e9df38ee2d2c3c5948ea468a8406ff0db0b29ae1ffde1bcf20ef305bcc95c51"
-
 [[package]]
 name = "xmlparser"
 version = "0.13.6"
@@ -3805,70 +3649,24 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cfe53a6657fd280eaa890a3bc59152892ffa3e30101319d168b781ed6529b049"
 
-[[package]]
-name = "yoke"
-version = "0.7.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "120e6aef9aa629e3d4f52dc8cc43a015c7724194c97dfaf45180d2daf2b77f40"
-dependencies = [
- "serde",
- "stable_deref_trait",
- "yoke-derive",
- "zerofrom",
-]
-
-[[package]]
-name = "yoke-derive"
-version = "0.7.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2380878cad4ac9aac1e2435f3eb4020e8374b5f13c296cb75b4620ff8e229154"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.89",
- "synstructure",
-]
-
 [[package]]
 name = "zerocopy"
-version = "0.7.35"
+version = "0.7.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
+checksum = "ae87e3fcd617500e5d106f0380cf7b77f3c6092aae37191433159dda23cfb087"
 dependencies = [
- "byteorder",
  "zerocopy-derive",
 ]
 
 [[package]]
 name = "zerocopy-derive"
-version = "0.7.35"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.89",
-]
-
-[[package]]
-name = "zerofrom"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cff3ee08c995dee1859d998dea82f7374f2826091dd9cd47def953cae446cd2e"
-dependencies = [
- "zerofrom-derive",
-]
-
-[[package]]
-name = "zerofrom-derive"
-version = "0.1.5"
+version = "0.7.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "595eed982f7d355beb85837f651fa22e90b3c044842dc7f2c2842c086f295808"
+checksum = "15e934569e47891f7d9411f1a451d947a60e000ab3bd24fbb970f000387d1b3b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.89",
- "synstructure",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -3876,25 +3674,3 @@ name = "zeroize"
 version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ced3678a2879b30306d323f4542626697a464a97c0a07c9aebf7ebca65cd4dde"
-
-[[package]]
-name = "zerovec"
-version = "0.10.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa2b893d79df23bfb12d5461018d408ea19dfafe76c2c7ef6d4eba614f8ff079"
-dependencies = [
- "yoke",
- "zerofrom",
- "zerovec-derive",
-]
-
-[[package]]
-name = "zerovec-derive"
-version = "0.10.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6eafa6dfb17584ea3e2bd6e76e0cc15ad7af12b09abdd1ca55961bed9b1063c6"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.89",
-]
diff --git a/nativelink-config/src/cas_server.rs b/nativelink-config/src/cas_server.rs
index a258b6867..edaa223f2 100644
--- a/nativelink-config/src/cas_server.rs
+++ b/nativelink-config/src/cas_server.rs
@@ -209,6 +209,52 @@ pub struct BepConfig {
     /// The store name referenced in the `stores` map in the main config.
     #[serde(deserialize_with = "convert_string_with_shellexpand")]
     pub store: StoreRefName,
+
+    /// The config related to identifying the client.
+    /// The value of this header will be used to identify the caller and
+    /// will be added to the [`BuildEvent::identity`] field of the message.
+    /// Default: {see `IdentityHeaderSpec`}
+    #[serde(default)]
+    pub experimental_identity_header: IdentityHeaderSpec,
+}
+
+#[derive(Deserialize, Clone, Debug, Default)]
+pub struct IdentityHeaderSpec {
+    /// The name of the header to look for the identity in.
+    /// Default: "x-identity"
+    #[serde(default, deserialize_with = "convert_optional_string_with_shellexpand")]
+    pub header_name: Option<String>,
+
+    /// If the header is required to be set or fail the request.
+    #[serde(default)]
+    pub required: bool,
+}
+
+#[derive(Deserialize, Clone, Debug)]
+pub struct OriginEventsPublisherConfig {
+    /// The store to publish nativelink events to.
+    /// The store name referenced in the `stores` map in the main config.
+    #[serde(deserialize_with = "convert_string_with_shellexpand")]
+    pub store: StoreRefName,
+}
+
+#[derive(Deserialize, Clone, Debug)]
+pub struct OriginEventsConfig {
+    /// The publisher configuration for origin events.
+    pub publisher: OriginEventsPublisherConfig,
+
+    /// The maximum number of events to queue before applying back pressure.
+    /// IMPORTANT: Backpressure causes all clients to slow down significantly.
+    /// Zero is default.
+    ///
+    /// Default: 65536
+    #[serde(default, deserialize_with = "convert_numeric_with_shellexpand")]
+    pub max_event_queue_size: usize,
+
+    /// The config related to identifying the client.
+    /// Default: {see `IdentityHeaderSpec`}
+    #[serde(default)]
+    pub identity_header: IdentityHeaderSpec,
 }
 
 #[derive(Deserialize, Debug)]
@@ -738,6 +784,11 @@ pub struct CasConfig {
     /// Servers to setup for this process.
     pub servers: Vec<ServerConfig>,
 
+    /// Experimental - Origin events configuration. This is the service that will
+    /// collect and publish nativelink events to a store for processing by an
+    /// external service.
+    pub experimental_origin_events: Option<OriginEventsConfig>,
+
     /// Any global configurations that apply to all modules live here.
     pub global: Option<GlobalConfig>,
 }
diff --git a/nativelink-proto/BUILD.bazel b/nativelink-proto/BUILD.bazel
index 8193bcf0f..40e110da0 100644
--- a/nativelink-proto/BUILD.bazel
+++ b/nativelink-proto/BUILD.bazel
@@ -11,11 +11,20 @@ PROTO_NAMES = [
     "build.bazel.remote.execution.v2",
     "build.bazel.semver",
     "com.github.trace_machina.nativelink.remote_execution",
+    "com.github.trace_machina.nativelink.events",
     "google.api",
     "google.bytestream",
     "google.devtools.build.v1",
     "google.longrunning",
     "google.rpc",
+    "build_event_stream",
+    "command_line",
+    "devtools.build.lib.packages.metrics",
+    "blaze",
+    "options",
+    "failure_details",
+    "blaze.invocation_policy",
+    "blaze.strategy_policy",
 ]
 
 rust_binary(
@@ -69,6 +78,7 @@ genrule(
     srcs = [
         "build/bazel/remote/execution/v2/remote_execution.proto",
         "build/bazel/semver/semver.proto",
+        "com/github/trace_machina/nativelink/remote_execution/events.proto",
         "com/github/trace_machina/nativelink/remote_execution/worker_api.proto",
         "google/api/annotations.proto",
         "google/api/client.proto",
@@ -86,6 +96,14 @@ genrule(
         "google/protobuf/timestamp.proto",
         "google/protobuf/wrappers.proto",
         "google/rpc/status.proto",
+        "src/main/java/com/google/devtools/build/lib/buildeventstream/proto/build_event_stream.proto",
+        "src/main/java/com/google/devtools/build/lib/packages/metrics/package_load_metrics.proto",
+        "src/main/protobuf/command_line.proto",
+        "src/main/protobuf/action_cache.proto",
+        "src/main/protobuf/option_filters.proto",
+        "src/main/protobuf/failure_details.proto",
+        "src/main/protobuf/invocation_policy.proto",
+        "src/main/protobuf/strategy_policy.proto",
     ],
     outs = ["{}.pb.rs".format(name) for name in PROTO_NAMES],
     cmd = select({
diff --git a/nativelink-proto/com/github/trace_machina/nativelink/remote_execution/events.proto b/nativelink-proto/com/github/trace_machina/nativelink/remote_execution/events.proto
new file mode 100644
index 000000000..3eee0d3e4
--- /dev/null
+++ b/nativelink-proto/com/github/trace_machina/nativelink/remote_execution/events.proto
@@ -0,0 +1,218 @@
+// Copyright 2024 The NativeLink Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package com.github.trace_machina.nativelink.events;
+
+import "build/bazel/remote/execution/v2/remote_execution.proto";
+import "google/bytestream/bytestream.proto";
+import "google/devtools/build/v1/publish_build_event.proto";
+import "google/longrunning/operations.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/timestamp.proto";
+import "google/rpc/status.proto";
+
+/// Same as build.bazel.remote.execution.v2.BatchUpdateBlobsRequest,
+/// but without the data field, and add a `data_len` field.
+message BatchUpdateBlobsRequestOverride {
+  message Request {
+    build.bazel.remote.execution.v2.Digest digest = 1;
+    reserved 2; // Was data, but we are only tracking the length in `data_len`.
+    build.bazel.remote.execution.v2.Compressor.Value compressor = 3;
+
+    // Override/new field to track the length of the data.
+    uint64 data_len = 15; // Using 15 to stay at 1 byte, but higher than 3.
+  }
+
+  string instance_name = 1;
+  repeated Request requests = 2;
+  build.bazel.remote.execution.v2.DigestFunction.Value digest_function = 5;
+}
+
+/// Same as build.bazel.remote.execution.v2.BatchReadBlobsResponse,
+/// but without the data field, and add a `data_len` field.
+message BatchReadBlobsResponseOverride {
+  message Response {
+    build.bazel.remote.execution.v2.Digest digest = 1;
+    reserved 2; // Was data, but we are only tracking the length in `data_len`.
+    build.bazel.remote.execution.v2.Compressor.Value compressor = 4;
+    google.rpc.Status status = 3;
+
+    // Override/new field to track the length of the data.
+    uint64 data_len = 15; // Using 15 to stay at 1 byte, but higher than 3.
+  }
+  repeated Response responses = 1;
+}
+
+/// Same as google.bytestream.WriteRequest, but without the data field,
+/// and add a `data_len` field.
+message WriteRequestOverride {
+    string resource_name = 1;
+    int64 write_offset = 2;
+    bool finish_write = 3;
+    reserved 10; // Was data, but we are only tracking the length in `data_len`.
+
+    // Override/new field to track the length of the data.
+    uint64 data_len = 15; // Using 15 to stay at 1 byte, but higher than 3.
+}
+
+message GetTreeStreamResponse {
+    oneof response {
+        build.bazel.remote.execution.v2.GetTreeResponse success = 1;
+        google.rpc.Status error = 2;
+    }
+
+    reserved 3; // NextId.
+}
+
+message ReadStreamResponse {
+    oneof response {
+        uint64 success = 1;
+        google.rpc.Status error = 2;
+    }
+
+    reserved 3; // NextId.
+}
+
+message WriteStreamRequest {
+    oneof response {
+        WriteRequestOverride success = 1;
+        google.rpc.Status error = 2;
+    }
+
+    reserved 3; // NextId.
+}
+
+message ExecuteStreamResponse {
+    oneof response {
+        google.longrunning.Operation success = 1;
+        google.rpc.Status error = 2;
+    }
+
+    reserved 3; // NextId.
+}
+
+/// Nativelink event that has occurred.
+message OriginEvent {
+    /// The version of this message.
+    uint32 version = 1;
+
+    /// The event UUIDv6. This is a unique identifier for the event for the
+    /// server that generated the event.
+    /// Note: The timestamp of when the event occurred is encoded in the UUID.
+    string event_id = 2;
+
+    /// [optional] The parent event UUID. This is used to track the
+    /// parent event that generated this event. This is useful for
+    /// tracking the flow of events.
+    string parent_event_id = 3;
+
+    /// If the client is bazel, this is the meatadata that was sent with the
+    /// request. This is useful for tracking the flow of events.
+    build.bazel.remote.execution.v2.RequestMetadata bazel_request_metadata = 4;
+
+    /// The identity header that generated the event. This will be populated with
+    /// the value of the specified by the `IdentityHeaderSpec::header_name`.
+    string identity = 5;
+
+    // These are reserved for data that is going to be frequently used.
+    // Fields <=15 save 1 byte in the encoding, so we are reserving all fields
+    // not used <=15 for future fields that will be sent a lot.
+    reserved 6 to 15; // Allowed to be used.
+
+    /// The event that occurred.
+    oneof event {
+        build.bazel.remote.execution.v2.GetCapabilitiesRequest get_capabilities_request = 16;
+        build.bazel.remote.execution.v2.ServerCapabilities get_capabilities_response = 17;
+        // Note: GetCapabilitiesRequest currently cannot error.
+
+        build.bazel.remote.execution.v2.GetActionResultRequest get_action_result_request = 18;
+        build.bazel.remote.execution.v2.ActionResult get_action_result_response = 19;
+        google.rpc.Status get_action_result_error = 20;
+
+        build.bazel.remote.execution.v2.UpdateActionResultRequest update_action_result_request = 21;
+        build.bazel.remote.execution.v2.ActionResult update_action_result_response = 22;
+        google.rpc.Status update_action_result_error = 23;
+
+        build.bazel.remote.execution.v2.FindMissingBlobsRequest find_missing_blobs_request = 24;
+        build.bazel.remote.execution.v2.FindMissingBlobsResponse find_missing_blobs_response = 25;
+        google.rpc.Status find_missing_blobs_error = 26;
+
+        build.bazel.remote.execution.v2.BatchReadBlobsRequest batch_read_blobs_request = 27;
+        BatchReadBlobsResponseOverride batch_read_blobs_response = 28;
+        google.rpc.Status batch_read_blobs_error = 29;
+
+        BatchUpdateBlobsRequestOverride batch_update_blobs_request = 30;
+        build.bazel.remote.execution.v2.BatchUpdateBlobsResponse batch_update_blobs_response = 31;
+        google.rpc.Status batch_update_blobs_error = 32;
+
+        build.bazel.remote.execution.v2.GetTreeRequest get_tree_request = 33;
+        google.protobuf.Empty get_tree_response = 34;
+        google.rpc.Status get_tree_error = 35;
+        GetTreeStreamResponse get_tree_stream_response = 36;
+
+        google.bytestream.ReadRequest read_request = 37;
+        google.protobuf.Empty read_response = 38;
+        google.rpc.Status read_error = 39;
+        ReadStreamResponse read_stream_response = 40;
+
+        google.protobuf.Empty write_request = 41;
+        google.bytestream.WriteResponse write_response = 42;
+        google.rpc.Status write_error = 43;
+        WriteStreamRequest write_stream_request = 44;
+
+        google.bytestream.QueryWriteStatusRequest query_write_status_request = 45;
+        google.bytestream.QueryWriteStatusResponse query_write_status_response = 46;
+        google.rpc.Status query_write_status_error = 47;
+
+        build.bazel.remote.execution.v2.ExecuteRequest execute_request = 48;
+        google.protobuf.Empty execute_response = 49;
+        google.rpc.Status execute_error = 50;
+        ExecuteStreamResponse execute_stream_response = 51;
+
+        build.bazel.remote.execution.v2.WaitExecutionRequest wait_execution_request = 52;
+        google.protobuf.Empty wait_execution_response = 53;
+        google.rpc.Status wait_execute_error = 54;
+        ExecuteStreamResponse wait_execute_stream_response = 55;
+    }
+
+    reserved 56; // NextId.
+}
+
+/// Batch of events that have occurred.
+message OriginEvents {
+    repeated OriginEvent events = 1;
+
+    reserved 2; // NextId.
+}
+
+/// Bep event that has occurred.
+message BepEvent {
+    /// The version of this message.
+    uint32 version = 1;
+
+    /// The identity header that generated the event. This will be populated
+    /// with the header value keyed by the specified by the
+    /// `IdentityHeaderSpec::header_name`.
+    string identity = 2;
+
+    /// The event that occurred.
+    oneof event {
+        google.devtools.build.v1.PublishLifecycleEventRequest lifecycle_event = 3;
+        google.devtools.build.v1.PublishBuildToolEventStreamRequest build_tool_event = 4;
+    }
+
+    reserved 5; // NextId.
+}
diff --git a/nativelink-proto/gen_lib_rs_tool.py b/nativelink-proto/gen_lib_rs_tool.py
index 4370df2d1..9a17c3983 100644
--- a/nativelink-proto/gen_lib_rs_tool.py
+++ b/nativelink-proto/gen_lib_rs_tool.py
@@ -37,7 +37,14 @@
 // This file is auto-generated. To update it, run:
 // `bazel run nativelink-proto:update_protos`
 
-#![allow(clippy::default_trait_access, clippy::doc_markdown)]
+#![allow(
+    clippy::default_trait_access,
+    clippy::doc_lazy_continuation,
+    clippy::doc_markdown,
+    clippy::doc_markdown,
+    clippy::large_enum_variant,
+    rustdoc::invalid_html_tags,
+)]
 """
 
 
diff --git a/nativelink-proto/genproto/blaze.invocation_policy.pb.rs b/nativelink-proto/genproto/blaze.invocation_policy.pb.rs
new file mode 100644
index 000000000..b8973ba3c
--- /dev/null
+++ b/nativelink-proto/genproto/blaze.invocation_policy.pb.rs
@@ -0,0 +1,254 @@
+// Copyright 2022 The NativeLink Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This file is @generated by prost-build.
+/// The --invocation_policy flag takes a base64-encoded binary-serialized or text
+/// formatted InvocationPolicy message.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct InvocationPolicy {
+    /// Order matters.
+    /// After expanding policies on expansion flags or flags with implicit
+    /// requirements, only the final policy on a specific flag will be enforced
+    /// onto the user's command line.
+    #[prost(message, repeated, tag = "1")]
+    pub flag_policies: ::prost::alloc::vec::Vec<FlagPolicy>,
+    #[prost(message, optional, tag = "2")]
+    pub strategy_policy: ::core::option::Option<super::strategy_policy::StrategyPolicy>,
+}
+/// A policy for controlling the value of a flag.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct FlagPolicy {
+    /// The name of the flag to enforce this policy on.
+    ///
+    /// Note that this should be the full name of the flag, not the abbreviated
+    /// name of the flag. If the user specifies the abbreviated name of a flag,
+    /// that flag will be matched using its full name.
+    ///
+    /// The "no" prefix will not be parsed, so for boolean flags, use
+    /// the flag's full name and explicitly set it to true or false.
+    #[prost(string, optional, tag = "1")]
+    pub flag_name: ::core::option::Option<::prost::alloc::string::String>,
+    /// If set, this flag policy is applied only if one of the given commands or a
+    /// command that inherits from one of the given commands is being run. For
+    /// instance, if "build" is one of the commands here, then this policy will
+    /// apply to any command that inherits from build, such as info, coverage, or
+    /// test. If empty, this flag policy is applied for all commands. This allows
+    /// the policy setter to add all policies to the proto without having to
+    /// determine which Bazel command the user is actually running. Additionally,
+    /// Bazel allows multiple flags to be defined by the same name, and the
+    /// specific flag definition is determined by the command.
+    #[prost(string, repeated, tag = "2")]
+    pub commands: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+    #[prost(oneof = "flag_policy::Operation", tags = "3, 4, 5, 6")]
+    pub operation: ::core::option::Option<flag_policy::Operation>,
+}
+/// Nested message and enum types in `FlagPolicy`.
+pub mod flag_policy {
+    #[derive(Clone, PartialEq, ::prost::Oneof)]
+    pub enum Operation {
+        #[prost(message, tag = "3")]
+        SetValue(super::SetValue),
+        #[prost(message, tag = "4")]
+        UseDefault(super::UseDefault),
+        #[prost(message, tag = "5")]
+        DisallowValues(super::DisallowValues),
+        #[prost(message, tag = "6")]
+        AllowValues(super::AllowValues),
+    }
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct SetValue {
+    /// Use this value for the specified flag, overriding any default or user-set
+    /// value (unless behavior = APPEND for repeatable flags).
+    ///
+    /// This field is repeated for repeatable flags. It is an error to set
+    /// multiple values for a flag that is not actually a repeatable flag.
+    /// This requires at least 1 value, if even the empty string.
+    ///
+    /// If the flag allows multiple values, all of its values are replaced with the
+    /// value or values from the policy (i.e., no diffing or merging is performed),
+    /// unless behavior = APPEND (see below).
+    ///
+    /// Note that some flags are tricky. For example, some flags look like boolean
+    /// flags, but are actually Void expansion flags that expand into other flags.
+    /// The Bazel flag parser will accept "--void_flag=false", but because
+    /// the flag is Void, the "=false" is ignored. It can get even trickier, like
+    /// "--novoid_flag" which is also an expansion flag with the type Void whose
+    /// name is explicitly "novoid_flag" and which expands into other flags that
+    /// are the opposite of "--void_flag". For expansion flags, it's best to
+    /// explicitly override the flags they expand into.
+    ///
+    /// Other flags may be differently tricky: A flag could have a converter that
+    /// converts some string to a list of values, but that flag may not itself have
+    /// allowMultiple set to true.
+    ///
+    /// An example is "--test_tag_filters": this flag sets its converter to
+    /// CommaSeparatedOptionListConverter, but does not set allowMultiple to true.
+    /// So "--test_tag_filters=foo,bar" results in \["foo", "bar"\], however
+    /// "--test_tag_filters=foo --test_tag_filters=bar" results in just \["bar"\]
+    /// since the 2nd value overrides the 1st.
+    ///
+    /// Similarly, "--test_tag_filters=foo,bar --test_tag_filters=baz,qux" results
+    /// in \["baz", "qux"\]. For flags like these, the policy should specify
+    /// "foo,bar" instead of separately specifying "foo" and "bar" so that the
+    /// converter is appropriately invoked.
+    ///
+    /// Note that the opposite is not necessarily
+    /// true: for a flag that specifies allowMultiple=true, "--flag=foo,bar"
+    /// may fail to parse or result in an unexpected value.
+    #[prost(string, repeated, tag = "1")]
+    pub flag_value: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+    /// Defines how invocation policy should interact with user settings for the
+    /// same flag.
+    #[prost(enumeration = "set_value::Behavior", optional, tag = "4")]
+    pub behavior: ::core::option::Option<i32>,
+}
+/// Nested message and enum types in `SetValue`.
+pub mod set_value {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Behavior {
+        Undefined = 0,
+        /// Change the flag value but allow it to be overridden by explicit settings
+        /// from command line/config expansion/rc files.
+        /// Matching old flag values: append = false, overridable = true.
+        AllowOverrides = 1,
+        /// Append a new value for a repeatable flag, leave old values and allow
+        /// further overrides.
+        /// Matching old flag values: append = true, overridable = false.
+        Append = 2,
+        /// Set a final value of the flag. Any overrides provided by the user for
+        /// this flag will be ignored.
+        /// Matching old flag values: append = false, overridable = false.
+        FinalValueIgnoreOverrides = 3,
+    }
+    impl Behavior {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::Undefined => "UNDEFINED",
+                Self::AllowOverrides => "ALLOW_OVERRIDES",
+                Self::Append => "APPEND",
+                Self::FinalValueIgnoreOverrides => "FINAL_VALUE_IGNORE_OVERRIDES",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "UNDEFINED" => Some(Self::Undefined),
+                "ALLOW_OVERRIDES" => Some(Self::AllowOverrides),
+                "APPEND" => Some(Self::Append),
+                "FINAL_VALUE_IGNORE_OVERRIDES" => Some(Self::FinalValueIgnoreOverrides),
+                _ => None,
+            }
+        }
+    }
+}
+/// Use the default value of the flag, as defined by Bazel (or equivalently, do
+/// not allow the user to set this flag).
+///
+/// Note on implementation: UseDefault sets the default by clearing the flag,
+/// so that when the value is requested and no flag is found, the flag parser
+/// returns the default. This is mostly relevant for expansion flags: it will
+/// erase user values in *all* flags that the expansion flag expands to. Only
+/// use this on expansion flags if this is acceptable behavior. Since the last
+/// policy wins, later policies on this same flag will still remove the
+/// expanded UseDefault, so there is a way around, but it's really best not to
+/// use this on expansion flags at all.
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct UseDefault {}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct DisallowValues {
+    /// It is an error for the user to use any of these values (that is, the Bazel
+    /// command will fail), unless new_value or use_default is set.
+    ///
+    /// For repeatable flags, if any one of the values in the flag matches a value
+    /// in the list of disallowed values, an error is thrown.
+    ///
+    /// Care must be taken for flags with complicated converters. For example,
+    /// it's possible for a repeated flag to be of type List<List<T>>, so that
+    /// "--foo=a,b --foo=c,d" results in foo=\[["a","b"\], \["c", "d"]\]. In this case,
+    /// it is not possible to disallow just "b", nor will \["b", "a"\] match, nor
+    /// will \["b", "c"\] (but \["a", "b"\] will still match).
+    #[prost(string, repeated, tag = "1")]
+    pub disallowed_values: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+    #[prost(oneof = "disallow_values::ReplacementValue", tags = "3, 4")]
+    pub replacement_value: ::core::option::Option<disallow_values::ReplacementValue>,
+}
+/// Nested message and enum types in `DisallowValues`.
+pub mod disallow_values {
+    #[derive(Clone, PartialEq, ::prost::Oneof)]
+    pub enum ReplacementValue {
+        /// If set and if the value of the flag is disallowed (including the default
+        /// value of the flag if the user doesn't specify a value), use this value as
+        /// the value of the flag instead of raising an error. This does not apply to
+        /// repeatable flags and is ignored if the flag is a repeatable flag.
+        #[prost(string, tag = "3")]
+        NewValue(::prost::alloc::string::String),
+        /// If set and if the value of the flag is disallowed, use the default value
+        /// of the flag instead of raising an error. Unlike new_value, this works for
+        /// repeatable flags, but note that the default value for repeatable flags is
+        /// always empty.
+        ///
+        /// Note that it is an error to disallow the default value of the flag and
+        /// to set use_default, unless the flag is a repeatable flag where the
+        /// default value is always the empty list.
+        #[prost(message, tag = "4")]
+        UseDefault(super::UseDefault),
+    }
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct AllowValues {
+    /// It is an error for the user to use any value not in this list, unless
+    /// new_value or use_default is set.
+    #[prost(string, repeated, tag = "1")]
+    pub allowed_values: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+    #[prost(oneof = "allow_values::ReplacementValue", tags = "3, 4")]
+    pub replacement_value: ::core::option::Option<allow_values::ReplacementValue>,
+}
+/// Nested message and enum types in `AllowValues`.
+pub mod allow_values {
+    #[derive(Clone, PartialEq, ::prost::Oneof)]
+    pub enum ReplacementValue {
+        /// If set and if the value of the flag is disallowed (including the default
+        /// value of the flag if the user doesn't specify a value), use this value as
+        /// the value of the flag instead of raising an error. This does not apply to
+        /// repeatable flags and is ignored if the flag is a repeatable flag.
+        #[prost(string, tag = "3")]
+        NewValue(::prost::alloc::string::String),
+        /// If set and if the value of the flag is disallowed, use the default value
+        /// of the flag instead of raising an error. Unlike new_value, this works for
+        /// repeatable flags, but note that the default value for repeatable flags is
+        /// always empty.
+        ///
+        /// Note that it is an error to disallow the default value of the flag and
+        /// to set use_default, unless the flag is a repeatable flag where the
+        /// default value is always the empty list.
+        #[prost(message, tag = "4")]
+        UseDefault(super::UseDefault),
+    }
+}
diff --git a/nativelink-proto/genproto/blaze.pb.rs b/nativelink-proto/genproto/blaze.pb.rs
new file mode 100644
index 000000000..ed5ec5036
--- /dev/null
+++ b/nativelink-proto/genproto/blaze.pb.rs
@@ -0,0 +1,104 @@
+// Copyright 2022 The NativeLink Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This file is @generated by prost-build.
+/// Information about the action cache behavior during a single build.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ActionCacheStatistics {
+    /// Size of the action cache in bytes.
+    ///
+    /// This is computed by the code that persists the action cache to disk and
+    /// represents the size of the written files, which has no direct relation to
+    /// the number of entries in the cache.
+    #[prost(uint64, tag = "1")]
+    pub size_in_bytes: u64,
+    /// Time it took to save the action cache to disk.
+    #[prost(uint64, tag = "2")]
+    pub save_time_in_ms: u64,
+    /// Cache counters.
+    #[prost(int32, tag = "3")]
+    pub hits: i32,
+    #[prost(int32, tag = "4")]
+    pub misses: i32,
+    /// Breakdown of the cache misses based on the reasons behind them.
+    #[prost(message, repeated, tag = "5")]
+    pub miss_details: ::prost::alloc::vec::Vec<action_cache_statistics::MissDetail>,
+    /// Time it took to load the action cache from disk. Reported as 0 if the
+    /// action cache has not been loaded in this invocation.
+    #[prost(uint64, tag = "6")]
+    pub load_time_in_ms: u64,
+}
+/// Nested message and enum types in `ActionCacheStatistics`.
+pub mod action_cache_statistics {
+    /// Detailed information for a particular miss reason.
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct MissDetail {
+        #[prost(enumeration = "MissReason", tag = "1")]
+        pub reason: i32,
+        #[prost(int32, tag = "2")]
+        pub count: i32,
+    }
+    /// Reasons for not finding an action in the cache.
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum MissReason {
+        DifferentActionKey = 0,
+        DifferentDeps = 1,
+        DifferentEnvironment = 2,
+        DifferentFiles = 3,
+        CorruptedCacheEntry = 4,
+        NotCached = 5,
+        UnconditionalExecution = 6,
+    }
+    impl MissReason {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::DifferentActionKey => "DIFFERENT_ACTION_KEY",
+                Self::DifferentDeps => "DIFFERENT_DEPS",
+                Self::DifferentEnvironment => "DIFFERENT_ENVIRONMENT",
+                Self::DifferentFiles => "DIFFERENT_FILES",
+                Self::CorruptedCacheEntry => "CORRUPTED_CACHE_ENTRY",
+                Self::NotCached => "NOT_CACHED",
+                Self::UnconditionalExecution => "UNCONDITIONAL_EXECUTION",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "DIFFERENT_ACTION_KEY" => Some(Self::DifferentActionKey),
+                "DIFFERENT_DEPS" => Some(Self::DifferentDeps),
+                "DIFFERENT_ENVIRONMENT" => Some(Self::DifferentEnvironment),
+                "DIFFERENT_FILES" => Some(Self::DifferentFiles),
+                "CORRUPTED_CACHE_ENTRY" => Some(Self::CorruptedCacheEntry),
+                "NOT_CACHED" => Some(Self::NotCached),
+                "UNCONDITIONAL_EXECUTION" => Some(Self::UnconditionalExecution),
+                _ => None,
+            }
+        }
+    }
+}
diff --git a/nativelink-proto/genproto/blaze.strategy_policy.pb.rs b/nativelink-proto/genproto/blaze.strategy_policy.pb.rs
new file mode 100644
index 000000000..af005582e
--- /dev/null
+++ b/nativelink-proto/genproto/blaze.strategy_policy.pb.rs
@@ -0,0 +1,65 @@
+// Copyright 2022 The NativeLink Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This file is @generated by prost-build.
+/// Provides control over what strategies (local, remote, etc) may be used.
+///
+/// An empty policies (e.g. unset) implies no enforcement, anything is allowed.
+///
+/// Policies are enforced against both user-provided values (flags) and
+/// application-internal defaults. The latter is useful for guarding against
+/// unexpectedly hard-coded defaults.
+///
+/// Sample usage to allow everything to execute remotely, while only allowing
+/// genrules to execute locally:
+///
+///    strategy_policy {
+///      mnemonic_policy {
+///        default_allowlist: \["remote"\]
+///        strategy_allowlist: [
+///          { mnemonic: "Genrule" strategy: \["local"\] }
+///        ]
+///      }
+///    }
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct StrategyPolicy {
+    /// Controls per-mnemonic policies for regular spawn/action execution. Relevant
+    /// command-line flags this controls include --strategy and --genrule_strategy.
+    #[prost(message, optional, tag = "1")]
+    pub mnemonic_policy: ::core::option::Option<MnemonicPolicy>,
+    /// Controls per-mnemonic policies for the remote execution leg of dynamic
+    /// execution. Relevant flag is --dynamic_remote_strategy.
+    #[prost(message, optional, tag = "2")]
+    pub dynamic_remote_policy: ::core::option::Option<MnemonicPolicy>,
+    /// Controls per-mnemonic policies for the local execution leg of dynamic
+    /// execution. Relevant flag is --dynamic_local_strategy.
+    #[prost(message, optional, tag = "3")]
+    pub dynamic_local_policy: ::core::option::Option<MnemonicPolicy>,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct MnemonicPolicy {
+    /// Default allowed strategies for mnemonics not present in `strategy` list.
+    #[prost(string, repeated, tag = "1")]
+    pub default_allowlist: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+    #[prost(message, repeated, tag = "2")]
+    pub strategy_allowlist: ::prost::alloc::vec::Vec<StrategiesForMnemonic>,
+}
+/// Per-mnemonic allowlist settings.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct StrategiesForMnemonic {
+    #[prost(string, optional, tag = "1")]
+    pub mnemonic: ::core::option::Option<::prost::alloc::string::String>,
+    #[prost(string, repeated, tag = "2")]
+    pub strategy: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+}
diff --git a/nativelink-proto/genproto/build_event_stream.pb.rs b/nativelink-proto/genproto/build_event_stream.pb.rs
new file mode 100644
index 000000000..0a7d8735f
--- /dev/null
+++ b/nativelink-proto/genproto/build_event_stream.pb.rs
@@ -0,0 +1,1955 @@
+// Copyright 2022 The NativeLink Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This file is @generated by prost-build.
+/// Identifier for a build event. It is deliberately structured to also provide
+/// information about which build target etc the event is related to.
+///
+/// Events are chained via the event id as follows: each event has an id and a
+/// set of ids of children events such that apart from the initial event each
+/// event has an id that is mentioned as child id in an earlier event and a build
+/// invocation is complete if and only if all direct and indirect children of the
+/// initial event have been posted.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct BuildEventId {
+    #[prost(
+        oneof = "build_event_id::Id",
+        tags = "1, 2, 3, 11, 18, 14, 12, 17, 15, 16, 4, 10, 13, 5, 6, 19, 21, 8, 29, 7, 26, 9, 20, 22, 23, 24, 25, 28"
+    )]
+    pub id: ::core::option::Option<build_event_id::Id>,
+}
+/// Nested message and enum types in `BuildEventId`.
+pub mod build_event_id {
+    /// Generic identifier for a build event. This is the default type of
+    /// BuildEventId, but should not be used outside testing; nevertheless,
+    /// tools should handle build events with this kind of id gracefully.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct UnknownBuildEventId {
+        #[prost(string, tag = "1")]
+        pub details: ::prost::alloc::string::String,
+    }
+    /// Identifier of an event reporting progress. Those events are also used to
+    /// chain in events that come early.
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct ProgressId {
+        /// Unique identifier. No assumption should be made about how the ids are
+        /// assigned; the only meaningful operation on this field is test for
+        /// equality.
+        #[prost(int32, tag = "1")]
+        pub opaque_count: i32,
+    }
+    /// Identifier of an event indicating the beginning of a build; this will
+    /// normally be the first event.
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct BuildStartedId {}
+    /// Identifier on an event indicating the original commandline received by
+    /// the bazel server.
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct UnstructuredCommandLineId {}
+    /// Identifier on an event describing the commandline received by Bazel.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct StructuredCommandLineId {
+        /// A title for this command line value, as there may be multiple.
+        /// For example, a single invocation may wish to report both the literal and
+        /// canonical command lines, and this label would be used to differentiate
+        /// between both versions.
+        #[prost(string, tag = "1")]
+        pub command_line_label: ::prost::alloc::string::String,
+    }
+    /// Identifier of an event indicating the workspace status.
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct WorkspaceStatusId {}
+    /// Identifier on an event reporting on the options included in the command
+    /// line, both explicitly and implicitly.
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct OptionsParsedId {}
+    /// Identifier of an event reporting that an external resource was fetched
+    /// from.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct FetchId {
+        /// The external resource that was fetched from.
+        #[prost(string, tag = "1")]
+        pub url: ::prost::alloc::string::String,
+    }
+    /// Identifier of an event indicating that a target pattern has been expanded
+    /// further.
+    /// Messages of this shape are also used to describe parts of a pattern that
+    /// have been skipped for some reason, if the actual expansion was still
+    /// carried out (e.g., if keep_going is set). In this case, the
+    /// pattern_skipped choice in the id field is to be made.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct PatternExpandedId {
+        #[prost(string, repeated, tag = "1")]
+        pub pattern: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+    }
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct WorkspaceConfigId {}
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct BuildMetadataId {}
+    /// Identifier of an event indicating that a target has been expanded by
+    /// identifying for which configurations it should be build.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct TargetConfiguredId {
+        #[prost(string, tag = "1")]
+        pub label: ::prost::alloc::string::String,
+        /// If empty, the id refers to the expansion of the target. If not-empty,
+        /// the id refers to the expansion of an aspect applied to the (already
+        /// expanded) target.
+        ///
+        /// For example, when building an apple_binary that depends on proto_library
+        /// "//:foo_proto", there will be two TargetConfigured events for
+        /// "//:foo_proto":
+        ///
+        /// 1. An event with an empty aspect, corresponding to actions producing
+        /// language-agnostic outputs from the proto_library; and
+        /// 2. An event with aspect "ObjcProtoAspect", corresponding to Objective-C
+        /// code generation.
+        #[prost(string, tag = "2")]
+        pub aspect: ::prost::alloc::string::String,
+    }
+    /// Identifier of an event introducing a named set of files (usually artifacts)
+    /// to be referred to in later messages.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct NamedSetOfFilesId {
+        /// Identifier of the file set; this is an opaque string valid only for the
+        /// particular instance of the event stream.
+        #[prost(string, tag = "1")]
+        pub id: ::prost::alloc::string::String,
+    }
+    /// Identifier of an event introducing a configuration.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct ConfigurationId {
+        /// Identifier of the configuration; users of the protocol should not make
+        /// any assumptions about it having any structure, or equality of the
+        /// identifier between different streams.
+        ///
+        /// A value of "none" means the null configuration. It is used for targets
+        /// that are not configurable, for example, source files.
+        #[prost(string, tag = "1")]
+        pub id: ::prost::alloc::string::String,
+    }
+    /// Identifier of an event indicating that a target was built completely; this
+    /// does not include running the test if the target is a test target.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct TargetCompletedId {
+        #[prost(string, tag = "1")]
+        pub label: ::prost::alloc::string::String,
+        /// The configuration for which the target was built.
+        #[prost(message, optional, tag = "3")]
+        pub configuration: ::core::option::Option<ConfigurationId>,
+        /// If empty, the id refers to the completion of the target. If not-empty,
+        /// the id refers to the completion of an aspect applied to the (already
+        /// completed) target.
+        ///
+        /// For example, when building an apple_binary that depends on proto_library
+        /// "//:foo_proto", there will be two TargetCompleted events for
+        /// "//:foo_proto":
+        ///
+        /// 1. An event with an empty aspect, corresponding to actions producing
+        /// language-agnostic outputs from the proto_library; and
+        /// 2. An event with aspect "ObjcProtoAspect", corresponding to Objective-C
+        /// code generation.
+        #[prost(string, tag = "2")]
+        pub aspect: ::prost::alloc::string::String,
+    }
+    /// Identifier of an event reporting that an action was completed (not all
+    /// actions are reported, only the ones that can be considered important;
+    /// this includes all failed actions).
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct ActionCompletedId {
+        #[prost(string, tag = "1")]
+        pub primary_output: ::prost::alloc::string::String,
+        /// Optional, the label of the owner of the action, for reference.
+        #[prost(string, tag = "2")]
+        pub label: ::prost::alloc::string::String,
+        /// Optional, the id of the configuration of the action owner.
+        #[prost(message, optional, tag = "3")]
+        pub configuration: ::core::option::Option<ConfigurationId>,
+    }
+    /// Identifier of an event reporting an event associated with an unconfigured
+    /// label. Usually, this indicates a failure due to a missing input file. In
+    /// any case, it will report some form of error (i.e., the payload will be an
+    /// Aborted event); there are no regular events using this identifier. The
+    /// purpose of those events is to serve as the root cause of a failed target.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct UnconfiguredLabelId {
+        #[prost(string, tag = "1")]
+        pub label: ::prost::alloc::string::String,
+    }
+    /// Identifier of an event reporting an event associated with a configured
+    /// label, usually a visibility error. In any case, an event with such an
+    /// id will always report some form of error (i.e., the payload will be an
+    /// Aborted event); there are no regular events using this identifier.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct ConfiguredLabelId {
+        #[prost(string, tag = "1")]
+        pub label: ::prost::alloc::string::String,
+        #[prost(message, optional, tag = "2")]
+        pub configuration: ::core::option::Option<ConfigurationId>,
+    }
+    /// Identifier of an event reporting on an individual test run. The label
+    /// identifies the test that is reported about, the remaining fields are
+    /// in such a way as to uniquely identify the action within a build. In fact,
+    /// attempts for the same test, run, shard triple are counted sequentially,
+    /// starting with 1.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct TestResultId {
+        #[prost(string, tag = "1")]
+        pub label: ::prost::alloc::string::String,
+        #[prost(message, optional, tag = "5")]
+        pub configuration: ::core::option::Option<ConfigurationId>,
+        #[prost(int32, tag = "2")]
+        pub run: i32,
+        #[prost(int32, tag = "3")]
+        pub shard: i32,
+        #[prost(int32, tag = "4")]
+        pub attempt: i32,
+    }
+    /// Identifier of an event reporting progress of an individual test run.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct TestProgressId {
+        /// The label of the target for the action.
+        #[prost(string, tag = "1")]
+        pub label: ::prost::alloc::string::String,
+        /// The configuration under which the action is running.
+        #[prost(message, optional, tag = "2")]
+        pub configuration: ::core::option::Option<ConfigurationId>,
+        /// The run number of the test action (e.g. for runs_per_test > 1).
+        #[prost(int32, tag = "3")]
+        pub run: i32,
+        /// For sharded tests, the shard number of the test action.
+        #[prost(int32, tag = "4")]
+        pub shard: i32,
+        /// The execution attempt number which may increase due to retries (e.g. for
+        /// flaky tests).
+        #[prost(int32, tag = "5")]
+        pub attempt: i32,
+        /// An incrementing count used to differentiate TestProgressIds for the same
+        /// test attempt.
+        #[prost(int32, tag = "6")]
+        pub opaque_count: i32,
+    }
+    /// Identifier of an event reporting the summary of a test.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct TestSummaryId {
+        #[prost(string, tag = "1")]
+        pub label: ::prost::alloc::string::String,
+        #[prost(message, optional, tag = "2")]
+        pub configuration: ::core::option::Option<ConfigurationId>,
+    }
+    /// Identifier of an event reporting the summary of a target.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct TargetSummaryId {
+        #[prost(string, tag = "1")]
+        pub label: ::prost::alloc::string::String,
+        #[prost(message, optional, tag = "2")]
+        pub configuration: ::core::option::Option<ConfigurationId>,
+    }
+    /// Identifier of the BuildFinished event, indicating the end of a build.
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct BuildFinishedId {}
+    /// Identifier of an event providing additional logs/statistics after
+    /// completion of the build.
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct BuildToolLogsId {}
+    /// Identifier of an event providing build metrics after completion
+    /// of the build.
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct BuildMetricsId {}
+    /// Identifier of an event providing convenience symlinks information.
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct ConvenienceSymlinksIdentifiedId {}
+    /// Identifier of an event providing the ExecRequest of a run command.
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct ExecRequestId {}
+    #[derive(Clone, PartialEq, ::prost::Oneof)]
+    pub enum Id {
+        #[prost(message, tag = "1")]
+        Unknown(UnknownBuildEventId),
+        #[prost(message, tag = "2")]
+        Progress(ProgressId),
+        #[prost(message, tag = "3")]
+        Started(BuildStartedId),
+        #[prost(message, tag = "11")]
+        UnstructuredCommandLine(UnstructuredCommandLineId),
+        #[prost(message, tag = "18")]
+        StructuredCommandLine(StructuredCommandLineId),
+        #[prost(message, tag = "14")]
+        WorkspaceStatus(WorkspaceStatusId),
+        #[prost(message, tag = "12")]
+        OptionsParsed(OptionsParsedId),
+        #[prost(message, tag = "17")]
+        Fetch(FetchId),
+        #[prost(message, tag = "15")]
+        Configuration(ConfigurationId),
+        #[prost(message, tag = "16")]
+        TargetConfigured(TargetConfiguredId),
+        #[prost(message, tag = "4")]
+        Pattern(PatternExpandedId),
+        #[prost(message, tag = "10")]
+        PatternSkipped(PatternExpandedId),
+        #[prost(message, tag = "13")]
+        NamedSet(NamedSetOfFilesId),
+        #[prost(message, tag = "5")]
+        TargetCompleted(TargetCompletedId),
+        #[prost(message, tag = "6")]
+        ActionCompleted(ActionCompletedId),
+        #[prost(message, tag = "19")]
+        UnconfiguredLabel(UnconfiguredLabelId),
+        #[prost(message, tag = "21")]
+        ConfiguredLabel(ConfiguredLabelId),
+        #[prost(message, tag = "8")]
+        TestResult(TestResultId),
+        #[prost(message, tag = "29")]
+        TestProgress(TestProgressId),
+        #[prost(message, tag = "7")]
+        TestSummary(TestSummaryId),
+        #[prost(message, tag = "26")]
+        TargetSummary(TargetSummaryId),
+        #[prost(message, tag = "9")]
+        BuildFinished(BuildFinishedId),
+        #[prost(message, tag = "20")]
+        BuildToolLogs(BuildToolLogsId),
+        #[prost(message, tag = "22")]
+        BuildMetrics(BuildMetricsId),
+        #[prost(message, tag = "23")]
+        Workspace(WorkspaceConfigId),
+        #[prost(message, tag = "24")]
+        BuildMetadata(BuildMetadataId),
+        #[prost(message, tag = "25")]
+        ConvenienceSymlinksIdentified(ConvenienceSymlinksIdentifiedId),
+        #[prost(message, tag = "28")]
+        ExecRequest(ExecRequestId),
+    }
+}
+/// Payload of an event summarizing the progress of the build so far. Those
+/// events are also used to be parents of events where the more logical parent
+/// event cannot be posted yet as the needed information is not yet complete.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Progress {
+    /// The next chunk of stdout that bazel produced since the last progress event
+    /// or the beginning of the build.
+    /// Consumers that need to reason about the relative order of stdout and stderr
+    /// can assume that stderr has been emitted before stdout if both are present,
+    /// on a best-effort basis.
+    #[prost(string, tag = "1")]
+    pub stdout: ::prost::alloc::string::String,
+    /// The next chunk of stderr that bazel produced since the last progress event
+    /// or the beginning of the build.
+    /// Consumers that need to reason about the relative order of stdout and stderr
+    /// can assume that stderr has been emitted before stdout if both are present,
+    /// on a best-effort basis.
+    #[prost(string, tag = "2")]
+    pub stderr: ::prost::alloc::string::String,
+}
+/// Payload of an event indicating that an expected event will not come, as
+/// the build is aborted prematurely for some reason.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Aborted {
+    #[prost(enumeration = "aborted::AbortReason", tag = "1")]
+    pub reason: i32,
+    /// A human readable description with more details about there reason, where
+    /// available and useful.
+    #[prost(string, tag = "2")]
+    pub description: ::prost::alloc::string::String,
+}
+/// Nested message and enum types in `Aborted`.
+pub mod aborted {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum AbortReason {
+        Unknown = 0,
+        /// The user requested the build to be aborted (e.g., by hitting Ctl-C).
+        UserInterrupted = 1,
+        /// The user requested that no analysis be performed.
+        NoAnalyze = 8,
+        /// The user requested that no build be carried out.
+        NoBuild = 9,
+        /// The build or target was aborted as a timeout was exceeded.
+        TimeOut = 2,
+        /// The build or target was aborted as some remote environment (e.g., for
+        /// remote execution of actions) was not available in the expected way.
+        RemoteEnvironmentFailure = 3,
+        /// Failure due to reasons entirely internal to the build tool, i.e. an
+        /// unexpected crash due to programmer error.
+        Internal = 4,
+        /// A Failure occurred in the loading phase of a target.
+        LoadingFailure = 5,
+        /// A Failure occurred in the analysis phase of a target.
+        AnalysisFailure = 6,
+        /// Target build was skipped (e.g. due to incompatible CPU constraints).
+        Skipped = 7,
+        /// Build incomplete due to an earlier build failure (e.g. --keep_going was
+        /// set to false causing the build be ended upon failure).
+        Incomplete = 10,
+        /// The build tool ran out of memory and crashed.
+        OutOfMemory = 11,
+    }
+    impl AbortReason {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::Unknown => "UNKNOWN",
+                Self::UserInterrupted => "USER_INTERRUPTED",
+                Self::NoAnalyze => "NO_ANALYZE",
+                Self::NoBuild => "NO_BUILD",
+                Self::TimeOut => "TIME_OUT",
+                Self::RemoteEnvironmentFailure => "REMOTE_ENVIRONMENT_FAILURE",
+                Self::Internal => "INTERNAL",
+                Self::LoadingFailure => "LOADING_FAILURE",
+                Self::AnalysisFailure => "ANALYSIS_FAILURE",
+                Self::Skipped => "SKIPPED",
+                Self::Incomplete => "INCOMPLETE",
+                Self::OutOfMemory => "OUT_OF_MEMORY",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "UNKNOWN" => Some(Self::Unknown),
+                "USER_INTERRUPTED" => Some(Self::UserInterrupted),
+                "NO_ANALYZE" => Some(Self::NoAnalyze),
+                "NO_BUILD" => Some(Self::NoBuild),
+                "TIME_OUT" => Some(Self::TimeOut),
+                "REMOTE_ENVIRONMENT_FAILURE" => Some(Self::RemoteEnvironmentFailure),
+                "INTERNAL" => Some(Self::Internal),
+                "LOADING_FAILURE" => Some(Self::LoadingFailure),
+                "ANALYSIS_FAILURE" => Some(Self::AnalysisFailure),
+                "SKIPPED" => Some(Self::Skipped),
+                "INCOMPLETE" => Some(Self::Incomplete),
+                "OUT_OF_MEMORY" => Some(Self::OutOfMemory),
+                _ => None,
+            }
+        }
+    }
+}
+/// Payload of an event indicating the beginning of a new build. Usually, events
+/// of those type start a new build-event stream. The target pattern requested
+/// to be build is contained in one of the announced child events; it is an
+/// invariant that precisely one of the announced child events has a non-empty
+/// target pattern.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct BuildStarted {
+    #[prost(string, tag = "1")]
+    pub uuid: ::prost::alloc::string::String,
+    /// Start of the build in ms since the epoch.
+    ///
+    /// Deprecated, use `start_time` instead.
+    ///
+    /// TODO(yannic): Remove.
+    #[deprecated]
+    #[prost(int64, tag = "2")]
+    pub start_time_millis: i64,
+    /// Start of the build.
+    #[prost(message, optional, tag = "9")]
+    pub start_time: ::core::option::Option<::prost_types::Timestamp>,
+    /// Version of the build tool that is running.
+    #[prost(string, tag = "3")]
+    pub build_tool_version: ::prost::alloc::string::String,
+    /// A human-readable description of all the non-default option settings
+    #[prost(string, tag = "4")]
+    pub options_description: ::prost::alloc::string::String,
+    /// The name of the command that the user invoked.
+    #[prost(string, tag = "5")]
+    pub command: ::prost::alloc::string::String,
+    /// The working directory from which the build tool was invoked.
+    #[prost(string, tag = "6")]
+    pub working_directory: ::prost::alloc::string::String,
+    /// The directory of the workspace.
+    #[prost(string, tag = "7")]
+    pub workspace_directory: ::prost::alloc::string::String,
+    /// The process ID of the Bazel server.
+    #[prost(int64, tag = "8")]
+    pub server_pid: i64,
+}
+/// Configuration related to the blaze workspace and output tree.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct WorkspaceConfig {
+    /// The root of the local blaze exec root. All output files live underneath
+    /// this at "blaze-out/".
+    #[prost(string, tag = "1")]
+    pub local_exec_root: ::prost::alloc::string::String,
+}
+/// Payload of an event reporting the command-line of the invocation as
+/// originally received by the server. Note that this is not the command-line
+/// given by the user, as the client adds information about the invocation,
+/// like name and relevant entries of rc-files and client environment variables.
+/// However, it does contain enough information to reproduce the build
+/// invocation.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct UnstructuredCommandLine {
+    #[prost(string, repeated, tag = "1")]
+    pub args: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+}
+/// Payload of an event reporting on the parsed options, grouped in various ways.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct OptionsParsed {
+    #[prost(string, repeated, tag = "1")]
+    pub startup_options: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+    #[prost(string, repeated, tag = "2")]
+    pub explicit_startup_options: ::prost::alloc::vec::Vec<
+        ::prost::alloc::string::String,
+    >,
+    #[prost(string, repeated, tag = "3")]
+    pub cmd_line: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+    #[prost(string, repeated, tag = "4")]
+    pub explicit_cmd_line: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+    #[prost(message, optional, tag = "5")]
+    pub invocation_policy: ::core::option::Option<
+        super::blaze::invocation_policy::InvocationPolicy,
+    >,
+    #[prost(string, tag = "6")]
+    pub tool_tag: ::prost::alloc::string::String,
+}
+/// Payload of an event indicating that an external resource was fetched. This
+/// event will only occur in streams where an actual fetch happened, not in ones
+/// where a cached copy of the entity to be fetched was used.
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct Fetch {
+    #[prost(bool, tag = "1")]
+    pub success: bool,
+}
+/// Payload of an event reporting the workspace status. Key-value pairs can be
+/// provided by specifying the workspace_status_command to an executable that
+/// returns one key-value pair per line of output (key and value separated by a
+/// space).
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct WorkspaceStatus {
+    #[prost(message, repeated, tag = "1")]
+    pub item: ::prost::alloc::vec::Vec<workspace_status::Item>,
+}
+/// Nested message and enum types in `WorkspaceStatus`.
+pub mod workspace_status {
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct Item {
+        #[prost(string, tag = "1")]
+        pub key: ::prost::alloc::string::String,
+        #[prost(string, tag = "2")]
+        pub value: ::prost::alloc::string::String,
+    }
+}
+/// Payload of an event reporting custom key-value metadata associated with the
+/// build.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct BuildMetadata {
+    /// Custom metadata for the build.
+    #[prost(map = "string, string", tag = "1")]
+    pub metadata: ::std::collections::HashMap<
+        ::prost::alloc::string::String,
+        ::prost::alloc::string::String,
+    >,
+}
+/// Payload of an event reporting details of a given configuration.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Configuration {
+    #[prost(string, tag = "1")]
+    pub mnemonic: ::prost::alloc::string::String,
+    #[prost(string, tag = "2")]
+    pub platform_name: ::prost::alloc::string::String,
+    #[prost(string, tag = "3")]
+    pub cpu: ::prost::alloc::string::String,
+    #[prost(map = "string, string", tag = "4")]
+    pub make_variable: ::std::collections::HashMap<
+        ::prost::alloc::string::String,
+        ::prost::alloc::string::String,
+    >,
+    /// Whether this configuration is used for building tools.
+    #[prost(bool, tag = "5")]
+    pub is_tool: bool,
+}
+/// Payload of the event indicating the expansion of a target pattern.
+/// The main information is in the chaining part: the id will contain the
+/// target pattern that was expanded and the children id will contain the
+/// target or target pattern it was expanded to.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct PatternExpanded {
+    /// All test suites requested via top-level target patterns. Does not include
+    /// test suites whose label matched a negative pattern.
+    #[prost(message, repeated, tag = "1")]
+    pub test_suite_expansions: ::prost::alloc::vec::Vec<
+        pattern_expanded::TestSuiteExpansion,
+    >,
+}
+/// Nested message and enum types in `PatternExpanded`.
+pub mod pattern_expanded {
+    /// Represents a test_suite target and the tests that it expanded to. Nested
+    /// test suites are recursively expanded. The test labels only contain the
+    /// final test targets, not any nested suites.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct TestSuiteExpansion {
+        /// The label of the test_suite rule.
+        #[prost(string, tag = "1")]
+        pub suite_label: ::prost::alloc::string::String,
+        /// Labels of the test targets included in the suite. Includes all tests in
+        /// the suite regardless of any filters or negative patterns which may result
+        /// in the test not actually being run.
+        #[prost(string, repeated, tag = "2")]
+        pub test_labels: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+    }
+}
+/// Payload of the event indicating that the configurations for a target have
+/// been identified. As with pattern expansion the main information is in the
+/// chaining part: the id will contain the target that was configured and the
+/// children id will contain the configured targets it was configured to.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct TargetConfigured {
+    /// The kind of target (e.g.,  e.g. "cc_library rule", "source file",
+    /// "generated file") where the completion is reported.
+    #[prost(string, tag = "1")]
+    pub target_kind: ::prost::alloc::string::String,
+    /// The size of the test, if the target is a test target. Unset otherwise.
+    #[prost(enumeration = "TestSize", tag = "2")]
+    pub test_size: i32,
+    /// List of all tags associated with this target (for all possible
+    /// configurations).
+    #[prost(string, repeated, tag = "3")]
+    pub tag: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct File {
+    /// A sequence of prefixes to apply to the file name to construct a full path.
+    /// In most but not all cases, there will be 3 entries:
+    ///   1. A root output directory, eg "bazel-out"
+    ///   2. A configuration mnemonic, eg "k8-fastbuild"
+    ///   3. An output category, eg "genfiles"
+    #[prost(string, repeated, tag = "4")]
+    pub path_prefix: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+    /// identifier indicating the nature of the file (e.g., "stdout", "stderr")
+    #[prost(string, tag = "1")]
+    pub name: ::prost::alloc::string::String,
+    /// Digest of the file, using the build tool's configured digest algorithm,
+    /// hex-encoded.
+    #[prost(string, tag = "5")]
+    pub digest: ::prost::alloc::string::String,
+    /// Length of the file in bytes.
+    #[prost(int64, tag = "6")]
+    pub length: i64,
+    #[prost(oneof = "file::File", tags = "2, 3, 7")]
+    pub file: ::core::option::Option<file::File>,
+}
+/// Nested message and enum types in `File`.
+pub mod file {
+    #[derive(Clone, PartialEq, ::prost::Oneof)]
+    pub enum File {
+        /// A location where the contents of the file can be found. The string is
+        /// encoded according to RFC2396.
+        #[prost(string, tag = "2")]
+        Uri(::prost::alloc::string::String),
+        /// The contents of the file, if they are guaranteed to be short.
+        #[prost(bytes, tag = "3")]
+        Contents(::prost::bytes::Bytes),
+        /// The symlink target path, if the file is an unresolved symlink.
+        #[prost(string, tag = "7")]
+        SymlinkTargetPath(::prost::alloc::string::String),
+    }
+}
+/// Payload of a message to describe a set of files, usually build artifacts, to
+/// be referred to later by their name. In this way, files that occur identically
+/// as outputs of several targets have to be named only once.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct NamedSetOfFiles {
+    /// Files that belong to this named set of files.
+    #[prost(message, repeated, tag = "1")]
+    pub files: ::prost::alloc::vec::Vec<File>,
+    /// Other named sets whose members also belong to this set.
+    #[prost(message, repeated, tag = "2")]
+    pub file_sets: ::prost::alloc::vec::Vec<build_event_id::NamedSetOfFilesId>,
+}
+/// Payload of the event indicating the completion of an action. The main purpose
+/// of posting those events is to provide details on the root cause for a target
+/// failing; however, consumers of the build-event protocol must not assume
+/// that only failed actions are posted.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ActionExecuted {
+    #[prost(bool, tag = "1")]
+    pub success: bool,
+    /// The mnemonic of the action that was executed
+    #[prost(string, tag = "8")]
+    pub r#type: ::prost::alloc::string::String,
+    /// The exit code of the action, if it is available.
+    #[prost(int32, tag = "2")]
+    pub exit_code: i32,
+    /// Location where to find the standard output of the action
+    /// (e.g., a file path).
+    #[prost(message, optional, tag = "3")]
+    pub stdout: ::core::option::Option<File>,
+    /// Location where to find the standard error of the action
+    /// (e.g., a file path).
+    #[prost(message, optional, tag = "4")]
+    pub stderr: ::core::option::Option<File>,
+    /// Deprecated. This field is now present on ActionCompletedId.
+    #[deprecated]
+    #[prost(string, tag = "5")]
+    pub label: ::prost::alloc::string::String,
+    /// Deprecated. This field is now present on ActionCompletedId.
+    #[deprecated]
+    #[prost(message, optional, tag = "7")]
+    pub configuration: ::core::option::Option<build_event_id::ConfigurationId>,
+    /// Primary output; only provided for successful actions.
+    #[prost(message, optional, tag = "6")]
+    pub primary_output: ::core::option::Option<File>,
+    /// The command-line of the action, if the action is a command.
+    #[prost(string, repeated, tag = "9")]
+    pub command_line: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+    /// List of paths to log files
+    #[prost(message, repeated, tag = "10")]
+    pub action_metadata_logs: ::prost::alloc::vec::Vec<File>,
+    /// Only populated if success = false, and sometimes not even then.
+    #[prost(message, optional, tag = "11")]
+    pub failure_detail: ::core::option::Option<super::failure_details::FailureDetail>,
+    /// Start of action execution, before any attempted execution begins.
+    #[prost(message, optional, tag = "12")]
+    pub start_time: ::core::option::Option<::prost_types::Timestamp>,
+    /// End of action execution, after all attempted execution completes.
+    #[prost(message, optional, tag = "13")]
+    pub end_time: ::core::option::Option<::prost_types::Timestamp>,
+    /// Additional details about action execution supplied by strategies. Bazel
+    /// options will determine which strategy details are included when multiple
+    /// strategies are involved in a single action's execution.
+    ///
+    /// The default type will be `tools.proto.SpawnExec` found in `spawn.proto`.
+    #[prost(message, repeated, tag = "14")]
+    pub strategy_details: ::prost::alloc::vec::Vec<::prost_types::Any>,
+}
+/// Collection of all output files belonging to that output group.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct OutputGroup {
+    /// Name of the output group
+    #[prost(string, tag = "1")]
+    pub name: ::prost::alloc::string::String,
+    /// List of file sets that belong to this output group as well.
+    #[prost(message, repeated, tag = "3")]
+    pub file_sets: ::prost::alloc::vec::Vec<build_event_id::NamedSetOfFilesId>,
+    /// Indicates that one or more of the output group's files were not built
+    /// successfully (the generating action failed).
+    #[prost(bool, tag = "4")]
+    pub incomplete: bool,
+    /// Inlined files that belong to this output group, requested via
+    /// --build_event_inline_output_groups.
+    #[prost(message, repeated, tag = "5")]
+    pub inline_files: ::prost::alloc::vec::Vec<File>,
+}
+/// Payload of the event indicating the completion of a target. The target is
+/// specified in the id. If the target failed the root causes are provided as
+/// children events.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct TargetComplete {
+    #[prost(bool, tag = "1")]
+    pub success: bool,
+    /// The kind of target (e.g.,  e.g. "cc_library rule", "source file",
+    /// "generated file") where the completion is reported.
+    /// Deprecated: use the target_kind field in TargetConfigured instead.
+    #[deprecated]
+    #[prost(string, tag = "5")]
+    pub target_kind: ::prost::alloc::string::String,
+    /// The size of the test, if the target is a test target. Unset otherwise.
+    /// Deprecated: use the test_size field in TargetConfigured instead.
+    #[deprecated]
+    #[prost(enumeration = "TestSize", tag = "6")]
+    pub test_size: i32,
+    /// The output files are arranged by their output group. If an output file
+    /// is part of multiple output groups, it appears once in each output
+    /// group.
+    #[prost(message, repeated, tag = "2")]
+    pub output_group: ::prost::alloc::vec::Vec<OutputGroup>,
+    /// Temporarily, also report the important outputs directly. This is only to
+    /// allow existing clients help transition to the deduplicated representation;
+    /// new clients should not use it.
+    #[deprecated]
+    #[prost(message, repeated, tag = "4")]
+    pub important_output: ::prost::alloc::vec::Vec<File>,
+    /// Report output artifacts (referenced transitively via output_group) which
+    /// emit directories instead of singleton files. These directory_output entries
+    /// will never include a uri.
+    #[prost(message, repeated, tag = "8")]
+    pub directory_output: ::prost::alloc::vec::Vec<File>,
+    /// List of tags associated with this configured target.
+    #[prost(string, repeated, tag = "3")]
+    pub tag: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+    /// The timeout specified for test actions under this configured target.
+    ///
+    /// Deprecated, use `test_timeout` instead.
+    ///
+    /// TODO(yannic): Remove.
+    #[deprecated]
+    #[prost(int64, tag = "7")]
+    pub test_timeout_seconds: i64,
+    /// The timeout specified for test actions under this configured target.
+    #[prost(message, optional, tag = "10")]
+    pub test_timeout: ::core::option::Option<::prost_types::Duration>,
+    /// Failure information about the target, only populated if success is false,
+    /// and sometimes not even then. Equal to one of the ActionExecuted
+    /// failure_detail fields for one of the root cause ActionExecuted events.
+    #[prost(message, optional, tag = "9")]
+    pub failure_detail: ::core::option::Option<super::failure_details::FailureDetail>,
+}
+/// Payload on events reporting about individual test action.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct TestResult {
+    /// The status of this test.
+    #[prost(enumeration = "TestStatus", tag = "5")]
+    pub status: i32,
+    /// Additional details about the status of the test. This is intended for
+    /// user display and must not be parsed.
+    #[prost(string, tag = "9")]
+    pub status_details: ::prost::alloc::string::String,
+    /// True, if the reported attempt is taken from the tool's local cache.
+    #[prost(bool, tag = "4")]
+    pub cached_locally: bool,
+    /// Time in milliseconds since the epoch at which the test attempt was started.
+    /// Note: for cached test results, this is time can be before the start of the
+    /// build.
+    ///
+    /// Deprecated, use `test_attempt_start` instead.
+    ///
+    /// TODO(yannic): Remove.
+    #[deprecated]
+    #[prost(int64, tag = "6")]
+    pub test_attempt_start_millis_epoch: i64,
+    /// Time at which the test attempt was started.
+    /// Note: for cached test results, this is time can be before the start of the
+    /// build.
+    #[prost(message, optional, tag = "10")]
+    pub test_attempt_start: ::core::option::Option<::prost_types::Timestamp>,
+    /// Time the test took to run. For locally cached results, this is the time
+    /// the cached invocation took when it was invoked.
+    ///
+    /// Deprecated, use `test_attempt_duration` instead.
+    ///
+    /// TODO(yannic): Remove.
+    #[deprecated]
+    #[prost(int64, tag = "3")]
+    pub test_attempt_duration_millis: i64,
+    /// Time the test took to run. For locally cached results, this is the time
+    /// the cached invocation took when it was invoked.
+    #[prost(message, optional, tag = "11")]
+    pub test_attempt_duration: ::core::option::Option<::prost_types::Duration>,
+    /// Files (logs, test.xml, undeclared outputs, etc) generated by that test
+    /// action.
+    #[prost(message, repeated, tag = "2")]
+    pub test_action_output: ::prost::alloc::vec::Vec<File>,
+    /// Warnings generated by that test action.
+    #[prost(string, repeated, tag = "7")]
+    pub warning: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+    #[prost(message, optional, tag = "8")]
+    pub execution_info: ::core::option::Option<test_result::ExecutionInfo>,
+}
+/// Nested message and enum types in `TestResult`.
+pub mod test_result {
+    /// Message providing optional meta data on the execution of the test action,
+    /// if available.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct ExecutionInfo {
+        /// Deprecated, use TargetComplete.test_timeout instead.
+        #[deprecated]
+        #[prost(int32, tag = "1")]
+        pub timeout_seconds: i32,
+        /// Name of the strategy to execute this test action (e.g., "local",
+        /// "remote")
+        #[prost(string, tag = "2")]
+        pub strategy: ::prost::alloc::string::String,
+        /// True, if the reported attempt was a cache hit in a remote cache.
+        #[prost(bool, tag = "6")]
+        pub cached_remotely: bool,
+        /// The exit code of the test action.
+        #[prost(int32, tag = "7")]
+        pub exit_code: i32,
+        /// The hostname of the machine where the test action was executed (in case
+        /// of remote execution), if known.
+        #[prost(string, tag = "3")]
+        pub hostname: ::prost::alloc::string::String,
+        #[prost(message, optional, tag = "4")]
+        pub timing_breakdown: ::core::option::Option<execution_info::TimingBreakdown>,
+        #[prost(message, repeated, tag = "5")]
+        pub resource_usage: ::prost::alloc::vec::Vec<execution_info::ResourceUsage>,
+    }
+    /// Nested message and enum types in `ExecutionInfo`.
+    pub mod execution_info {
+        /// Represents a hierarchical timing breakdown of an activity.
+        /// The top level time should be the total time of the activity.
+        /// Invariant: `time` >= sum of `time`s of all direct children.
+        #[derive(Clone, PartialEq, ::prost::Message)]
+        pub struct TimingBreakdown {
+            #[prost(message, repeated, tag = "1")]
+            pub child: ::prost::alloc::vec::Vec<TimingBreakdown>,
+            #[prost(string, tag = "2")]
+            pub name: ::prost::alloc::string::String,
+            /// Deprecated, use `time` instead.
+            ///
+            /// TODO(yannic): Remove.
+            #[deprecated]
+            #[prost(int64, tag = "3")]
+            pub time_millis: i64,
+            #[prost(message, optional, tag = "4")]
+            pub time: ::core::option::Option<::prost_types::Duration>,
+        }
+        #[derive(Clone, PartialEq, ::prost::Message)]
+        pub struct ResourceUsage {
+            #[prost(string, tag = "1")]
+            pub name: ::prost::alloc::string::String,
+            #[prost(int64, tag = "2")]
+            pub value: i64,
+        }
+    }
+}
+/// Event payload providing information about an active, individual test run.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct TestProgress {
+    /// Identifies a resource that may provide information about an active test
+    /// run. The resource is not necessarily a file and may need to be queried
+    /// for information. The URI is not guaranteed to be available after the test
+    /// completes. The string is encoded according to RFC2396.
+    #[prost(string, tag = "1")]
+    pub uri: ::prost::alloc::string::String,
+}
+/// Payload of the event summarizing a test.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct TestSummary {
+    /// Wrapper around BlazeTestStatus to support importing that enum to proto3.
+    /// Overall status of test, accumulated over all runs, shards, and attempts.
+    #[prost(enumeration = "TestStatus", tag = "5")]
+    pub overall_status: i32,
+    /// Total number of shard attempts.
+    /// E.g., if a target has 4 runs, 3 shards, each with 2 attempts,
+    /// then total_run_count will be 4*3*2 = 24.
+    #[prost(int32, tag = "1")]
+    pub total_run_count: i32,
+    /// Value of runs_per_test for the test.
+    #[prost(int32, tag = "10")]
+    pub run_count: i32,
+    /// Number of attempts.
+    /// If there are a different number of attempts per shard, the highest attempt
+    /// count across all shards for each run is used.
+    #[prost(int32, tag = "15")]
+    pub attempt_count: i32,
+    /// Number of shards.
+    #[prost(int32, tag = "11")]
+    pub shard_count: i32,
+    /// Path to logs of passed runs.
+    #[prost(message, repeated, tag = "3")]
+    pub passed: ::prost::alloc::vec::Vec<File>,
+    /// Path to logs of failed runs;
+    #[prost(message, repeated, tag = "4")]
+    pub failed: ::prost::alloc::vec::Vec<File>,
+    /// Total number of cached test actions
+    #[prost(int32, tag = "6")]
+    pub total_num_cached: i32,
+    /// When the test first started running.
+    ///
+    /// Deprecated, use `first_start_time` instead.
+    ///
+    /// TODO(yannic): Remove.
+    #[deprecated]
+    #[prost(int64, tag = "7")]
+    pub first_start_time_millis: i64,
+    /// When the test first started running.
+    #[prost(message, optional, tag = "13")]
+    pub first_start_time: ::core::option::Option<::prost_types::Timestamp>,
+    /// When the last test action completed.
+    ///
+    /// Deprecated, use `last_stop_time` instead.
+    ///
+    /// TODO(yannic): Remove.
+    #[deprecated]
+    #[prost(int64, tag = "8")]
+    pub last_stop_time_millis: i64,
+    /// When the test first started running.
+    #[prost(message, optional, tag = "14")]
+    pub last_stop_time: ::core::option::Option<::prost_types::Timestamp>,
+    /// The total runtime of the test.
+    ///
+    /// Deprecated, use `total_run` instead.
+    ///
+    /// TODO(yannic): Remove.
+    #[deprecated]
+    #[prost(int64, tag = "9")]
+    pub total_run_duration_millis: i64,
+    /// The total runtime of the test.
+    #[prost(message, optional, tag = "12")]
+    pub total_run_duration: ::core::option::Option<::prost_types::Duration>,
+}
+/// Payload of the event summarizing a target (test or non-test).
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct TargetSummary {
+    /// Conjunction of TargetComplete events for this target, including aspects.
+    #[prost(bool, tag = "1")]
+    pub overall_build_success: bool,
+    /// Repeats TestSummary's overall_status if available.
+    #[prost(enumeration = "TestStatus", tag = "2")]
+    pub overall_test_status: i32,
+}
+/// Event indicating the end of a build.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct BuildFinished {
+    /// If the build succeeded or failed.
+    #[deprecated]
+    #[prost(bool, tag = "1")]
+    pub overall_success: bool,
+    /// The overall status of the build. A build was successful iff
+    /// ExitCode.code equals 0.
+    #[prost(message, optional, tag = "3")]
+    pub exit_code: ::core::option::Option<build_finished::ExitCode>,
+    /// End of the build in ms since the epoch.
+    ///
+    /// Deprecated, use `finish_time` instead.
+    ///
+    /// TODO(yannic): Remove.
+    #[deprecated]
+    #[prost(int64, tag = "2")]
+    pub finish_time_millis: i64,
+    /// End of the build.
+    #[prost(message, optional, tag = "5")]
+    pub finish_time: ::core::option::Option<::prost_types::Timestamp>,
+    #[deprecated]
+    #[prost(message, optional, tag = "4")]
+    pub anomaly_report: ::core::option::Option<build_finished::AnomalyReport>,
+    /// Only populated if success = false, and sometimes not even then.
+    #[prost(message, optional, tag = "6")]
+    pub failure_detail: ::core::option::Option<super::failure_details::FailureDetail>,
+}
+/// Nested message and enum types in `BuildFinished`.
+pub mod build_finished {
+    /// Exit code of a build. The possible values correspond to the predefined
+    /// codes in bazel's lib.ExitCode class, as well as any custom exit code a
+    /// module might define. The predefined exit codes are subject to change (but
+    /// rarely do) and are not part of the public API.
+    ///
+    /// A build was successful iff ExitCode.code equals 0.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct ExitCode {
+        /// The name of the exit code.
+        #[prost(string, tag = "1")]
+        pub name: ::prost::alloc::string::String,
+        /// The exit code.
+        #[prost(int32, tag = "2")]
+        pub code: i32,
+    }
+    /// Things that happened during the build that could be of interest.
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct AnomalyReport {
+        /// Was the build suspended at any time during the build.
+        /// Examples of suspensions are SIGSTOP, or the hardware being put to sleep.
+        /// If was_suspended is true, then most of the timings for this build are
+        /// suspect.
+        /// NOTE: This is no longer set and is deprecated.
+        #[prost(bool, tag = "1")]
+        pub was_suspended: bool,
+    }
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct BuildMetrics {
+    #[prost(message, optional, tag = "1")]
+    pub action_summary: ::core::option::Option<build_metrics::ActionSummary>,
+    #[prost(message, optional, tag = "2")]
+    pub memory_metrics: ::core::option::Option<build_metrics::MemoryMetrics>,
+    #[prost(message, optional, tag = "3")]
+    pub target_metrics: ::core::option::Option<build_metrics::TargetMetrics>,
+    #[prost(message, optional, tag = "4")]
+    pub package_metrics: ::core::option::Option<build_metrics::PackageMetrics>,
+    #[prost(message, optional, tag = "5")]
+    pub timing_metrics: ::core::option::Option<build_metrics::TimingMetrics>,
+    #[prost(message, optional, tag = "6")]
+    pub cumulative_metrics: ::core::option::Option<build_metrics::CumulativeMetrics>,
+    #[prost(message, optional, tag = "7")]
+    pub artifact_metrics: ::core::option::Option<build_metrics::ArtifactMetrics>,
+    #[prost(message, optional, tag = "8")]
+    pub build_graph_metrics: ::core::option::Option<build_metrics::BuildGraphMetrics>,
+    #[prost(message, repeated, tag = "9")]
+    pub worker_metrics: ::prost::alloc::vec::Vec<build_metrics::WorkerMetrics>,
+    #[prost(message, optional, tag = "10")]
+    pub network_metrics: ::core::option::Option<build_metrics::NetworkMetrics>,
+    #[prost(message, optional, tag = "11")]
+    pub worker_pool_metrics: ::core::option::Option<build_metrics::WorkerPoolMetrics>,
+    #[prost(message, optional, tag = "12")]
+    pub dynamic_execution_metrics: ::core::option::Option<
+        build_metrics::DynamicExecutionMetrics,
+    >,
+}
+/// Nested message and enum types in `BuildMetrics`.
+pub mod build_metrics {
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct ActionSummary {
+        /// The total number of actions created and registered during the build,
+        /// including both aspects and configured targets. This metric includes
+        /// unused actions that were constructed but not executed during this build.
+        /// It does not include actions that were created on prior builds that are
+        /// still valid, even if those actions had to be re-executed on this build.
+        /// For the total number of actions that would be created if this invocation
+        /// were "clean", see BuildGraphMetrics below.
+        #[prost(int64, tag = "1")]
+        pub actions_created: i64,
+        /// The total number of actions created this build just by configured
+        /// targets. Used mainly to allow consumers of actions_created, which used to
+        /// not include aspects' actions, to normalize across the Blaze release that
+        /// switched actions_created to include all created actions.
+        #[prost(int64, tag = "3")]
+        pub actions_created_not_including_aspects: i64,
+        /// The total number of actions executed during the build. This includes any
+        /// remote cache hits, but excludes local action cache hits.
+        #[prost(int64, tag = "2")]
+        pub actions_executed: i64,
+        /// Contains the top N actions by number of actions executed.
+        #[prost(message, repeated, tag = "4")]
+        pub action_data: ::prost::alloc::vec::Vec<action_summary::ActionData>,
+        /// Deprecated. The total number of remote cache hits.
+        #[deprecated]
+        #[prost(int64, tag = "5")]
+        pub remote_cache_hits: i64,
+        #[prost(message, repeated, tag = "6")]
+        pub runner_count: ::prost::alloc::vec::Vec<action_summary::RunnerCount>,
+        #[prost(message, optional, tag = "7")]
+        pub action_cache_statistics: ::core::option::Option<
+            super::super::blaze::ActionCacheStatistics,
+        >,
+    }
+    /// Nested message and enum types in `ActionSummary`.
+    pub mod action_summary {
+        #[derive(Clone, PartialEq, ::prost::Message)]
+        pub struct ActionData {
+            #[prost(string, tag = "1")]
+            pub mnemonic: ::prost::alloc::string::String,
+            /// The total number of actions of this type executed during the build. As
+            /// above, includes remote cache hits but excludes local action cache hits.
+            #[prost(int64, tag = "2")]
+            pub actions_executed: i64,
+            /// When the first action of this type started being executed, in
+            /// milliseconds from the epoch.
+            #[prost(int64, tag = "3")]
+            pub first_started_ms: i64,
+            /// When the last action of this type ended being executed, in
+            /// milliseconds from the epoch.
+            #[prost(int64, tag = "4")]
+            pub last_ended_ms: i64,
+            /// Accumulated CPU time of all spawned actions of this type.
+            /// This is only set if all the actions reported a time
+            #[prost(message, optional, tag = "5")]
+            pub system_time: ::core::option::Option<::prost_types::Duration>,
+            #[prost(message, optional, tag = "6")]
+            pub user_time: ::core::option::Option<::prost_types::Duration>,
+            /// The total number of actions of this type registered during the build.
+            #[prost(int64, tag = "7")]
+            pub actions_created: i64,
+        }
+        #[derive(Clone, PartialEq, ::prost::Message)]
+        pub struct RunnerCount {
+            #[prost(string, tag = "1")]
+            pub name: ::prost::alloc::string::String,
+            #[prost(int32, tag = "2")]
+            pub count: i32,
+            #[prost(string, tag = "3")]
+            pub exec_kind: ::prost::alloc::string::String,
+        }
+    }
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct MemoryMetrics {
+        /// Size of the JVM heap post build in bytes. This is only collected if
+        /// --memory_profile is set, since it forces a full GC.
+        #[prost(int64, tag = "1")]
+        pub used_heap_size_post_build: i64,
+        /// Size of the peak JVM heap size in bytes post GC. Note that this reports 0
+        /// if there was no major GC during the build.
+        #[prost(int64, tag = "2")]
+        pub peak_post_gc_heap_size: i64,
+        /// Size of the peak tenured space JVM heap size event in bytes post GC. Note
+        /// that this reports 0 if there was no major GC during the build.
+        #[prost(int64, tag = "4")]
+        pub peak_post_gc_tenured_space_heap_size: i64,
+        #[prost(message, repeated, tag = "3")]
+        pub garbage_metrics: ::prost::alloc::vec::Vec<memory_metrics::GarbageMetrics>,
+    }
+    /// Nested message and enum types in `MemoryMetrics`.
+    pub mod memory_metrics {
+        #[derive(Clone, PartialEq, ::prost::Message)]
+        pub struct GarbageMetrics {
+            /// Type of garbage collected, e.g. G1 Old Gen.
+            #[prost(string, tag = "1")]
+            pub r#type: ::prost::alloc::string::String,
+            /// Number of bytes of garbage of the given type collected during this
+            /// invocation.
+            #[prost(int64, tag = "2")]
+            pub garbage_collected: i64,
+        }
+    }
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct TargetMetrics {
+        /// DEPRECATED
+        /// No longer populated. It never measured what it was supposed to (targets
+        /// loaded): it counted targets that were analyzed even if the underlying
+        /// package had not changed.
+        /// TODO(janakr): rename and remove.
+        #[prost(int64, tag = "1")]
+        pub targets_loaded: i64,
+        /// Number of targets/aspects configured during this build. Does not include
+        /// targets/aspects that were configured on prior builds on this server and
+        /// were cached. See BuildGraphMetrics below if you need that.
+        #[prost(int64, tag = "2")]
+        pub targets_configured: i64,
+        /// Number of configured targets analyzed during this build. Does not include
+        /// aspects. Used mainly to allow consumers of targets_configured, which used
+        /// to not include aspects, to normalize across the Blaze release that
+        /// switched targets_configured to include aspects.
+        #[prost(int64, tag = "3")]
+        pub targets_configured_not_including_aspects: i64,
+    }
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct PackageMetrics {
+        /// Number of BUILD files (aka packages) successfully loaded during this
+        /// build.
+        ///
+        /// \[For Bazel binaries built at source states\] Before Dec 2021, this value
+        /// was the number of packages attempted to be loaded, for a particular
+        /// definition of "attempted".
+        ///
+        /// After Dec 2021, this value would sometimes overcount because the same
+        /// package could sometimes be attempted to be loaded multiple times due to
+        /// memory pressure.
+        ///
+        /// After Feb 2022, this value is the number of packages successfully
+        /// loaded.
+        #[prost(int64, tag = "1")]
+        pub packages_loaded: i64,
+        /// Loading time metrics per package.
+        #[prost(message, repeated, tag = "2")]
+        pub package_load_metrics: ::prost::alloc::vec::Vec<
+            super::super::devtools::build::lib::packages::metrics::PackageLoadMetrics,
+        >,
+    }
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct TimingMetrics {
+        /// For Skymeld, it's possible that
+        /// analysis_phase_time_in_ms + execution_phase_time_in_ms >= wall_time_in_ms
+        ///
+        /// The CPU time in milliseconds consumed during this build.
+        #[prost(int64, tag = "1")]
+        pub cpu_time_in_ms: i64,
+        /// The elapsed wall time in milliseconds during this build.
+        #[prost(int64, tag = "2")]
+        pub wall_time_in_ms: i64,
+        /// The elapsed wall time in milliseconds during the analysis phase.
+        /// When analysis and execution phases are interleaved, this measures the
+        /// elapsed time from the first analysis work to the last.
+        #[prost(int64, tag = "3")]
+        pub analysis_phase_time_in_ms: i64,
+        /// The elapsed wall time in milliseconds during the execution phase.
+        /// When analysis and execution phases are interleaved, this measures the
+        /// elapsed time from the first action execution (excluding workspace status
+        /// actions) to the last.
+        #[prost(int64, tag = "4")]
+        pub execution_phase_time_in_ms: i64,
+        /// The elapsed wall time in milliseconds until the first action execution
+        /// started (excluding workspace status actions).
+        #[prost(int64, tag = "5")]
+        pub actions_execution_start_in_ms: i64,
+    }
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct CumulativeMetrics {
+        /// One-indexed number of "analyses" the server has run, including the
+        /// current one. Will be incremented for every build/test/cquery/etc. command
+        /// that reaches the analysis phase.
+        #[prost(int32, tag = "11")]
+        pub num_analyses: i32,
+        /// One-indexed number of "builds" the server has run, including the current
+        /// one. Will be incremented for every build/test/run/etc. command that
+        /// reaches the execution phase.
+        #[prost(int32, tag = "12")]
+        pub num_builds: i32,
+    }
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct ArtifactMetrics {
+        /// Measures all source files newly read this build. Does not include
+        /// unchanged sources on incremental builds.
+        #[prost(message, optional, tag = "2")]
+        pub source_artifacts_read: ::core::option::Option<artifact_metrics::FilesMetric>,
+        /// Measures all output artifacts from executed actions. This includes
+        /// actions that were cached locally (via the action cache) or remotely (via
+        /// a remote cache or executor), but does *not* include outputs of actions
+        /// that were cached internally in Skyframe.
+        #[prost(message, optional, tag = "3")]
+        pub output_artifacts_seen: ::core::option::Option<artifact_metrics::FilesMetric>,
+        /// Measures all output artifacts from actions that were cached locally
+        /// via the action cache. These artifacts were already present on disk at the
+        /// start of the build. Does not include Skyframe-cached actions' outputs.
+        #[prost(message, optional, tag = "4")]
+        pub output_artifacts_from_action_cache: ::core::option::Option<
+            artifact_metrics::FilesMetric,
+        >,
+        /// Measures all artifacts that belong to a top-level output group. Does not
+        /// deduplicate, so if there are two top-level targets in this build that
+        /// share an artifact, it will be counted twice.
+        #[prost(message, optional, tag = "5")]
+        pub top_level_artifacts: ::core::option::Option<artifact_metrics::FilesMetric>,
+    }
+    /// Nested message and enum types in `ArtifactMetrics`.
+    pub mod artifact_metrics {
+        #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+        pub struct FilesMetric {
+            #[prost(int64, tag = "1")]
+            pub size_in_bytes: i64,
+            #[prost(int32, tag = "2")]
+            pub count: i32,
+        }
+    }
+    /// Data about the evaluation of Skyfunctions.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct EvaluationStat {
+        /// Name of the Skyfunction.
+        #[prost(string, tag = "1")]
+        pub skyfunction_name: ::prost::alloc::string::String,
+        /// How many times a given operation was carried out on a Skyfunction.
+        #[prost(int64, tag = "2")]
+        pub count: i64,
+    }
+    /// Information about the size and shape of the build graph. Some fields may
+    /// not be populated if Bazel was able to skip steps due to caching.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct BuildGraphMetrics {
+        /// How many configured targets/aspects were in this build, including any
+        /// that were analyzed on a prior build and are still valid. May not be
+        /// populated if analysis phase was fully cached. Note: for historical
+        /// reasons this includes input/output files and other configured targets
+        /// that do not actually have associated actions.
+        #[prost(int32, tag = "1")]
+        pub action_lookup_value_count: i32,
+        /// How many configured targets alone were in this build: always at most
+        /// action_lookup_value_count. Useful mainly for historical comparisons to
+        /// TargetMetrics.targets_configured, which used to not count aspects. This
+        /// also includes configured targets that do not have associated actions.
+        #[prost(int32, tag = "5")]
+        pub action_lookup_value_count_not_including_aspects: i32,
+        /// How many actions belonged to the configured targets/aspects above. It may
+        /// not be necessary to execute all of these actions to build the requested
+        /// targets. May not be populated if analysis phase was fully cached.
+        #[prost(int32, tag = "2")]
+        pub action_count: i32,
+        /// How many actions belonged to configured targets: always at most
+        /// action_count. Useful mainly for historical comparisons to
+        /// ActionMetrics.actions_created, which used to not count aspects' actions.
+        #[prost(int32, tag = "6")]
+        pub action_count_not_including_aspects: i32,
+        /// How many "input file" configured targets there were: one per source file.
+        /// Should agree with artifact_metrics.source_artifacts_read.count above,
+        #[prost(int32, tag = "7")]
+        pub input_file_configured_target_count: i32,
+        /// How many "output file" configured targets there were: output files that
+        /// are targets (not implicit outputs).
+        #[prost(int32, tag = "8")]
+        pub output_file_configured_target_count: i32,
+        /// How many "other" configured targets there were (like alias,
+        /// package_group, and other non-rule non-file configured targets).
+        #[prost(int32, tag = "9")]
+        pub other_configured_target_count: i32,
+        /// How many artifacts are outputs of the above actions. May not be populated
+        /// if analysis phase was fully cached.
+        #[prost(int32, tag = "3")]
+        pub output_artifact_count: i32,
+        /// How many Skyframe nodes there are in memory at the end of the build. This
+        /// may underestimate the number of nodes when running with memory-saving
+        /// settings or with Skybuild, and may overestimate if there are nodes from
+        /// prior evaluations still in the cache.
+        #[prost(int32, tag = "4")]
+        pub post_invocation_skyframe_node_count: i32,
+        /// Number of SkyValues that were dirtied during the build. Dirtied nodes are
+        /// those that transitively depend on a node that changed by itself (e.g. one
+        /// representing a file in the file system)
+        #[prost(message, repeated, tag = "10")]
+        pub dirtied_values: ::prost::alloc::vec::Vec<EvaluationStat>,
+        /// Number of SkyValues that changed by themselves. For example, when a file
+        /// on the file system changes, the SkyValue representing it will change.
+        #[prost(message, repeated, tag = "11")]
+        pub changed_values: ::prost::alloc::vec::Vec<EvaluationStat>,
+        /// Number of SkyValues that were built. This means that they were evaluated
+        /// and were found to have changed from their previous version.
+        #[prost(message, repeated, tag = "12")]
+        pub built_values: ::prost::alloc::vec::Vec<EvaluationStat>,
+        /// Number of SkyValues that were evaluated and found clean, i.e. equal to
+        /// their previous version.
+        #[prost(message, repeated, tag = "13")]
+        pub cleaned_values: ::prost::alloc::vec::Vec<EvaluationStat>,
+        /// Number of evaluations to build SkyValues. This includes restarted
+        /// evaluations, which means there can be multiple evaluations per built
+        /// SkyValue. Subtract built_values from this number to get the number of
+        /// restarted evaluations.
+        #[prost(message, repeated, tag = "17")]
+        pub evaluated_values: ::prost::alloc::vec::Vec<EvaluationStat>,
+        #[prost(message, repeated, tag = "14")]
+        pub rule_class: ::prost::alloc::vec::Vec<build_graph_metrics::RuleClassCount>,
+        #[prost(message, repeated, tag = "15")]
+        pub aspect: ::prost::alloc::vec::Vec<build_graph_metrics::AspectCount>,
+    }
+    /// Nested message and enum types in `BuildGraphMetrics`.
+    pub mod build_graph_metrics {
+        /// For SkyKeys in 'done values' where the SkyValue is of type
+        /// RuleConfiguredTargetValue, we pull those out separately and report the
+        /// ruleClass and action count.
+        #[derive(Clone, PartialEq, ::prost::Message)]
+        pub struct RuleClassCount {
+            /// Unique key for the rule class.
+            #[prost(string, tag = "1")]
+            pub key: ::prost::alloc::string::String,
+            /// String name of the rule_class (not guaranteed unique)
+            #[prost(string, tag = "2")]
+            pub rule_class: ::prost::alloc::string::String,
+            /// how many rule instances of this type were seen.
+            #[prost(uint64, tag = "3")]
+            pub count: u64,
+            /// how many actions were created by this rule class.
+            #[prost(uint64, tag = "4")]
+            pub action_count: u64,
+        }
+        /// For SkyKeys whose function name is ASPECT break out that information
+        #[derive(Clone, PartialEq, ::prost::Message)]
+        pub struct AspectCount {
+            /// Unique key for Aspect.
+            #[prost(string, tag = "1")]
+            pub key: ::prost::alloc::string::String,
+            /// usually the same as above, but can differ in some cases.
+            #[prost(string, tag = "2")]
+            pub aspect_name: ::prost::alloc::string::String,
+            /// number of aspects created of this type.
+            #[prost(uint64, tag = "3")]
+            pub count: u64,
+            /// number of actions created by aspects of this type.
+            #[prost(uint64, tag = "4")]
+            pub action_count: u64,
+        }
+    }
+    /// Information about all workers that were alive during the invocation.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct WorkerMetrics {
+        /// Deprecated. Use worker_ids instead of this field.
+        #[deprecated]
+        #[prost(int32, tag = "1")]
+        pub worker_id: i32,
+        /// Ids of workers. Could be multiple in case of multiplex workers
+        #[prost(uint32, repeated, tag = "8")]
+        pub worker_ids: ::prost::alloc::vec::Vec<u32>,
+        /// Worker process id. If there is no process for worker, equals to zero.
+        #[prost(uint32, tag = "2")]
+        pub process_id: u32,
+        /// Mnemonic of running worker.
+        #[prost(string, tag = "3")]
+        pub mnemonic: ::prost::alloc::string::String,
+        /// Multiplex or singleplex worker.
+        #[prost(bool, tag = "4")]
+        pub is_multiplex: bool,
+        /// Using worker sandbox file system or not.
+        #[prost(bool, tag = "5")]
+        pub is_sandbox: bool,
+        /// TODO(b/300067854): Deprecate since all worker metrics should have their
+        /// WorkerStats set.
+        #[prost(bool, tag = "6")]
+        pub is_measurable: bool,
+        /// Hash value of worker key. Needed to distinguish worker pools with same
+        /// menmonic but with different worker keys.
+        #[prost(int64, tag = "9")]
+        pub worker_key_hash: i64,
+        #[prost(enumeration = "worker_metrics::WorkerStatus", tag = "10")]
+        pub worker_status: i32,
+        #[prost(
+            enumeration = "super::super::failure_details::worker::Code",
+            optional,
+            tag = "12"
+        )]
+        pub code: ::core::option::Option<i32>,
+        #[prost(int64, tag = "11")]
+        pub actions_executed: i64,
+        #[prost(int64, tag = "13")]
+        pub prior_actions_executed: i64,
+        /// Combined workers statistics.
+        #[prost(message, repeated, tag = "7")]
+        pub worker_stats: ::prost::alloc::vec::Vec<worker_metrics::WorkerStats>,
+    }
+    /// Nested message and enum types in `WorkerMetrics`.
+    pub mod worker_metrics {
+        /// Information collected from worker at some point.
+        #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+        pub struct WorkerStats {
+            /// Epoch unix time of collection of metrics.
+            #[prost(int64, tag = "1")]
+            pub collect_time_in_ms: i64,
+            /// Memory usage of worker process at the end of the build.
+            #[prost(int32, tag = "2")]
+            pub worker_memory_in_kb: i32,
+            /// Memory usage of the worker process prior to the invocation.
+            #[prost(int32, tag = "4")]
+            pub prior_worker_memory_in_kb: i32,
+            /// Epoch unix time of last action started on specific worker.
+            #[prost(int64, tag = "3")]
+            pub last_action_start_time_in_ms: i64,
+        }
+        #[derive(
+            Clone,
+            Copy,
+            Debug,
+            PartialEq,
+            Eq,
+            Hash,
+            PartialOrd,
+            Ord,
+            ::prost::Enumeration
+        )]
+        #[repr(i32)]
+        pub enum WorkerStatus {
+            /// Used to indicate a worker instance where the process has not been
+            /// created yet. In reality this isn't logged, but leaving this here as a
+            /// possible option in the future.
+            NotStarted = 0,
+            Alive = 1,
+            KilledDueToMemoryPressure = 2,
+            /// Indicates that the worker process was killed due to a reason unknown to
+            /// Bazel at the point of measurement; if a known cause (below) comes along
+            /// later on, this field will be updated.
+            KilledUnknown = 3,
+            KilledDueToInterruptedException = 4,
+            KilledDueToIoException = 5,
+            KilledDueToUserExecException = 6,
+        }
+        impl WorkerStatus {
+            /// String value of the enum field names used in the ProtoBuf definition.
+            ///
+            /// The values are not transformed in any way and thus are considered stable
+            /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+            pub fn as_str_name(&self) -> &'static str {
+                match self {
+                    Self::NotStarted => "NOT_STARTED",
+                    Self::Alive => "ALIVE",
+                    Self::KilledDueToMemoryPressure => "KILLED_DUE_TO_MEMORY_PRESSURE",
+                    Self::KilledUnknown => "KILLED_UNKNOWN",
+                    Self::KilledDueToInterruptedException => {
+                        "KILLED_DUE_TO_INTERRUPTED_EXCEPTION"
+                    }
+                    Self::KilledDueToIoException => "KILLED_DUE_TO_IO_EXCEPTION",
+                    Self::KilledDueToUserExecException => {
+                        "KILLED_DUE_TO_USER_EXEC_EXCEPTION"
+                    }
+                }
+            }
+            /// Creates an enum from field names used in the ProtoBuf definition.
+            pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+                match value {
+                    "NOT_STARTED" => Some(Self::NotStarted),
+                    "ALIVE" => Some(Self::Alive),
+                    "KILLED_DUE_TO_MEMORY_PRESSURE" => {
+                        Some(Self::KilledDueToMemoryPressure)
+                    }
+                    "KILLED_UNKNOWN" => Some(Self::KilledUnknown),
+                    "KILLED_DUE_TO_INTERRUPTED_EXCEPTION" => {
+                        Some(Self::KilledDueToInterruptedException)
+                    }
+                    "KILLED_DUE_TO_IO_EXCEPTION" => Some(Self::KilledDueToIoException),
+                    "KILLED_DUE_TO_USER_EXEC_EXCEPTION" => {
+                        Some(Self::KilledDueToUserExecException)
+                    }
+                    _ => None,
+                }
+            }
+        }
+    }
+    /// Information about host network.
+    #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+    pub struct NetworkMetrics {
+        #[prost(message, optional, tag = "1")]
+        pub system_network_stats: ::core::option::Option<
+            network_metrics::SystemNetworkStats,
+        >,
+    }
+    /// Nested message and enum types in `NetworkMetrics`.
+    pub mod network_metrics {
+        /// Information for all the network traffic going on on the host machine
+        /// during the invocation.
+        #[derive(Clone, Copy, PartialEq, ::prost::Message)]
+        pub struct SystemNetworkStats {
+            /// Total bytes sent during the invocation.
+            #[prost(uint64, tag = "1")]
+            pub bytes_sent: u64,
+            /// Total bytes received during the invocation.
+            #[prost(uint64, tag = "2")]
+            pub bytes_recv: u64,
+            /// Total packets sent during the invocation.
+            #[prost(uint64, tag = "3")]
+            pub packets_sent: u64,
+            /// Total packets received during the invocation.
+            #[prost(uint64, tag = "4")]
+            pub packets_recv: u64,
+            /// Peak bytes/sec sent during the invocation.
+            #[prost(uint64, tag = "5")]
+            pub peak_bytes_sent_per_sec: u64,
+            /// Peak bytes/sec received during the invocation.
+            #[prost(uint64, tag = "6")]
+            pub peak_bytes_recv_per_sec: u64,
+            /// Peak packets/sec sent during the invocation.
+            #[prost(uint64, tag = "7")]
+            pub peak_packets_sent_per_sec: u64,
+            /// Peak packets/sec received during the invocation.
+            #[prost(uint64, tag = "8")]
+            pub peak_packets_recv_per_sec: u64,
+        }
+    }
+    /// Information about worker pool actions.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct WorkerPoolMetrics {
+        /// Statistics of worker pool per worker pool hash. Basically it's a map from
+        /// worker pool hash to statistics.
+        #[prost(message, repeated, tag = "1")]
+        pub worker_pool_stats: ::prost::alloc::vec::Vec<
+            worker_pool_metrics::WorkerPoolStats,
+        >,
+    }
+    /// Nested message and enum types in `WorkerPoolMetrics`.
+    pub mod worker_pool_metrics {
+        #[derive(Clone, PartialEq, ::prost::Message)]
+        pub struct WorkerPoolStats {
+            /// Hash of worker pool these stats are for. Contains information about
+            /// startup flags.
+            #[prost(int32, tag = "1")]
+            pub hash: i32,
+            /// Mnemonic of workers these stats are for.
+            #[prost(string, tag = "2")]
+            pub mnemonic: ::prost::alloc::string::String,
+            /// Number of workers created during a build.
+            #[prost(int64, tag = "3")]
+            pub created_count: i64,
+            /// Number of workers destroyed during a build (sum of all workers
+            /// destroyed by eviction, UserExecException, IoException,
+            /// InterruptedException and unknown reasons below).
+            #[prost(int64, tag = "4")]
+            pub destroyed_count: i64,
+            /// Number of workers evicted during a build.
+            #[prost(int64, tag = "5")]
+            pub evicted_count: i64,
+            /// Number of workers destroyed due to UserExecExceptions.
+            #[prost(int64, tag = "6")]
+            pub user_exec_exception_destroyed_count: i64,
+            /// Number of workers destroyed due to IoExceptions.
+            #[prost(int64, tag = "7")]
+            pub io_exception_destroyed_count: i64,
+            /// Number of workers destroyed due to InterruptedExceptions.
+            #[prost(int64, tag = "8")]
+            pub interrupted_exception_destroyed_count: i64,
+            /// Number of workers destroyed due to an unknown reason.
+            #[prost(int64, tag = "9")]
+            pub unknown_destroyed_count: i64,
+            /// Number of workers alive at the end of the build.
+            #[prost(int64, tag = "10")]
+            pub alive_count: i64,
+        }
+    }
+    /// Information about dynamic execution.
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct DynamicExecutionMetrics {
+        /// Race statistics grouped by mnemonic, local_name, remote_name.
+        #[prost(message, repeated, tag = "1")]
+        pub race_statistics: ::prost::alloc::vec::Vec<
+            dynamic_execution_metrics::RaceStatistics,
+        >,
+    }
+    /// Nested message and enum types in `DynamicExecutionMetrics`.
+    pub mod dynamic_execution_metrics {
+        #[derive(Clone, PartialEq, ::prost::Message)]
+        pub struct RaceStatistics {
+            /// Mnemonic of the action.
+            #[prost(string, tag = "1")]
+            pub mnemonic: ::prost::alloc::string::String,
+            /// Name of runner of local branch.
+            #[prost(string, tag = "2")]
+            pub local_runner: ::prost::alloc::string::String,
+            /// Name of runner of remote branch.
+            #[prost(string, tag = "3")]
+            pub remote_runner: ::prost::alloc::string::String,
+            /// Number of wins of local branch in race.
+            #[prost(int32, tag = "4")]
+            pub local_wins: i32,
+            /// Number of wins of remote branch in race.
+            #[prost(int32, tag = "5")]
+            pub remote_wins: i32,
+        }
+    }
+}
+/// Event providing additional statistics/logs after completion of the build.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct BuildToolLogs {
+    #[prost(message, repeated, tag = "1")]
+    pub log: ::prost::alloc::vec::Vec<File>,
+}
+/// Event describing all convenience symlinks (i.e., workspace symlinks) to be
+/// created or deleted once the execution phase has begun. Note that this event
+/// does not say anything about whether or not the build tool actually executed
+/// these filesystem operations; it only says what logical operations should be
+/// performed. This event is emitted exactly once per build; if no symlinks are
+/// to be modified, the event is still emitted with empty contents.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ConvenienceSymlinksIdentified {
+    #[prost(message, repeated, tag = "1")]
+    pub convenience_symlinks: ::prost::alloc::vec::Vec<ConvenienceSymlink>,
+}
+/// The message that contains what type of action to perform on a given path and
+/// target of a symlink.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ConvenienceSymlink {
+    /// The path of the symlink to be created or deleted, absolute or relative to
+    /// the workspace, creating any directories necessary. If a symlink already
+    /// exists at that location, then it should be replaced by a symlink pointing
+    /// to the new target.
+    #[prost(string, tag = "1")]
+    pub path: ::prost::alloc::string::String,
+    /// The operation we are performing on the symlink.
+    #[prost(enumeration = "convenience_symlink::Action", tag = "2")]
+    pub action: i32,
+    /// If action is CREATE, this is the target path (relative to the output base)
+    /// that the symlink should point to.
+    ///
+    /// If action is DELETE, this field is not set.
+    #[prost(string, tag = "3")]
+    pub target: ::prost::alloc::string::String,
+}
+/// Nested message and enum types in `ConvenienceSymlink`.
+pub mod convenience_symlink {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Action {
+        Unknown = 0,
+        /// Indicates a symlink should be created, or overwritten if it already
+        /// exists.
+        Create = 1,
+        /// Indicates a symlink should be deleted if it already exists.
+        Delete = 2,
+    }
+    impl Action {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::Unknown => "UNKNOWN",
+                Self::Create => "CREATE",
+                Self::Delete => "DELETE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "UNKNOWN" => Some(Self::Unknown),
+                "CREATE" => Some(Self::Create),
+                "DELETE" => Some(Self::Delete),
+                _ => None,
+            }
+        }
+    }
+}
+/// Event that contains the ExecRequest of a run command announced only after a
+/// successful build and before trying to execute the requested command-line.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ExecRequestConstructed {
+    #[prost(bytes = "bytes", tag = "1")]
+    pub working_directory: ::prost::bytes::Bytes,
+    #[prost(bytes = "bytes", repeated, tag = "2")]
+    pub argv: ::prost::alloc::vec::Vec<::prost::bytes::Bytes>,
+    #[prost(message, repeated, tag = "3")]
+    pub environment_variable: ::prost::alloc::vec::Vec<EnvironmentVariable>,
+    #[prost(bytes = "bytes", repeated, tag = "4")]
+    pub environment_variable_to_clear: ::prost::alloc::vec::Vec<::prost::bytes::Bytes>,
+    #[prost(bool, tag = "5")]
+    pub should_exec: bool,
+}
+/// An environment variable provided by a run command after a successful build.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct EnvironmentVariable {
+    #[prost(bytes = "bytes", tag = "1")]
+    pub name: ::prost::bytes::Bytes,
+    #[prost(bytes = "bytes", tag = "2")]
+    pub value: ::prost::bytes::Bytes,
+}
+/// Message describing a build event. Events will have an identifier that
+/// is unique within a given build invocation; they also announce follow-up
+/// events as children. More details, which are specific to the kind of event
+/// that is observed, is provided in the payload. More options for the payload
+/// might be added in the future.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct BuildEvent {
+    #[prost(message, optional, tag = "1")]
+    pub id: ::core::option::Option<BuildEventId>,
+    #[prost(message, repeated, tag = "2")]
+    pub children: ::prost::alloc::vec::Vec<BuildEventId>,
+    #[prost(bool, tag = "20")]
+    pub last_message: bool,
+    #[prost(
+        oneof = "build_event::Payload",
+        tags = "3, 4, 5, 12, 22, 13, 16, 21, 17, 6, 18, 7, 15, 8, 10, 30, 9, 28, 14, 23, 24, 25, 26, 27, 29"
+    )]
+    pub payload: ::core::option::Option<build_event::Payload>,
+}
+/// Nested message and enum types in `BuildEvent`.
+pub mod build_event {
+    #[derive(Clone, PartialEq, ::prost::Oneof)]
+    pub enum Payload {
+        #[prost(message, tag = "3")]
+        Progress(super::Progress),
+        #[prost(message, tag = "4")]
+        Aborted(super::Aborted),
+        #[prost(message, tag = "5")]
+        Started(super::BuildStarted),
+        #[prost(message, tag = "12")]
+        UnstructuredCommandLine(super::UnstructuredCommandLine),
+        #[prost(message, tag = "22")]
+        StructuredCommandLine(super::super::command_line::CommandLine),
+        #[prost(message, tag = "13")]
+        OptionsParsed(super::OptionsParsed),
+        #[prost(message, tag = "16")]
+        WorkspaceStatus(super::WorkspaceStatus),
+        #[prost(message, tag = "21")]
+        Fetch(super::Fetch),
+        #[prost(message, tag = "17")]
+        Configuration(super::Configuration),
+        #[prost(message, tag = "6")]
+        Expanded(super::PatternExpanded),
+        #[prost(message, tag = "18")]
+        Configured(super::TargetConfigured),
+        #[prost(message, tag = "7")]
+        Action(super::ActionExecuted),
+        #[prost(message, tag = "15")]
+        NamedSetOfFiles(super::NamedSetOfFiles),
+        #[prost(message, tag = "8")]
+        Completed(super::TargetComplete),
+        #[prost(message, tag = "10")]
+        TestResult(super::TestResult),
+        #[prost(message, tag = "30")]
+        TestProgress(super::TestProgress),
+        #[prost(message, tag = "9")]
+        TestSummary(super::TestSummary),
+        #[prost(message, tag = "28")]
+        TargetSummary(super::TargetSummary),
+        #[prost(message, tag = "14")]
+        Finished(super::BuildFinished),
+        #[prost(message, tag = "23")]
+        BuildToolLogs(super::BuildToolLogs),
+        #[prost(message, tag = "24")]
+        BuildMetrics(super::BuildMetrics),
+        #[prost(message, tag = "25")]
+        WorkspaceInfo(super::WorkspaceConfig),
+        #[prost(message, tag = "26")]
+        BuildMetadata(super::BuildMetadata),
+        #[prost(message, tag = "27")]
+        ConvenienceSymlinksIdentified(super::ConvenienceSymlinksIdentified),
+        #[prost(message, tag = "29")]
+        ExecRequest(super::ExecRequestConstructed),
+    }
+}
+/// Enumeration type characterizing the size of a test, as specified by the
+/// test rule.
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord, ::prost::Enumeration)]
+#[repr(i32)]
+pub enum TestSize {
+    Unknown = 0,
+    Small = 1,
+    Medium = 2,
+    Large = 3,
+    Enormous = 4,
+}
+impl TestSize {
+    /// String value of the enum field names used in the ProtoBuf definition.
+    ///
+    /// The values are not transformed in any way and thus are considered stable
+    /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+    pub fn as_str_name(&self) -> &'static str {
+        match self {
+            Self::Unknown => "UNKNOWN",
+            Self::Small => "SMALL",
+            Self::Medium => "MEDIUM",
+            Self::Large => "LARGE",
+            Self::Enormous => "ENORMOUS",
+        }
+    }
+    /// Creates an enum from field names used in the ProtoBuf definition.
+    pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+        match value {
+            "UNKNOWN" => Some(Self::Unknown),
+            "SMALL" => Some(Self::Small),
+            "MEDIUM" => Some(Self::Medium),
+            "LARGE" => Some(Self::Large),
+            "ENORMOUS" => Some(Self::Enormous),
+            _ => None,
+        }
+    }
+}
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord, ::prost::Enumeration)]
+#[repr(i32)]
+pub enum TestStatus {
+    NoStatus = 0,
+    Passed = 1,
+    Flaky = 2,
+    Timeout = 3,
+    Failed = 4,
+    Incomplete = 5,
+    RemoteFailure = 6,
+    FailedToBuild = 7,
+    ToolHaltedBeforeTesting = 8,
+}
+impl TestStatus {
+    /// String value of the enum field names used in the ProtoBuf definition.
+    ///
+    /// The values are not transformed in any way and thus are considered stable
+    /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+    pub fn as_str_name(&self) -> &'static str {
+        match self {
+            Self::NoStatus => "NO_STATUS",
+            Self::Passed => "PASSED",
+            Self::Flaky => "FLAKY",
+            Self::Timeout => "TIMEOUT",
+            Self::Failed => "FAILED",
+            Self::Incomplete => "INCOMPLETE",
+            Self::RemoteFailure => "REMOTE_FAILURE",
+            Self::FailedToBuild => "FAILED_TO_BUILD",
+            Self::ToolHaltedBeforeTesting => "TOOL_HALTED_BEFORE_TESTING",
+        }
+    }
+    /// Creates an enum from field names used in the ProtoBuf definition.
+    pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+        match value {
+            "NO_STATUS" => Some(Self::NoStatus),
+            "PASSED" => Some(Self::Passed),
+            "FLAKY" => Some(Self::Flaky),
+            "TIMEOUT" => Some(Self::Timeout),
+            "FAILED" => Some(Self::Failed),
+            "INCOMPLETE" => Some(Self::Incomplete),
+            "REMOTE_FAILURE" => Some(Self::RemoteFailure),
+            "FAILED_TO_BUILD" => Some(Self::FailedToBuild),
+            "TOOL_HALTED_BEFORE_TESTING" => Some(Self::ToolHaltedBeforeTesting),
+            _ => None,
+        }
+    }
+}
diff --git a/nativelink-proto/genproto/com.github.trace_machina.nativelink.events.pb.rs b/nativelink-proto/genproto/com.github.trace_machina.nativelink.events.pb.rs
new file mode 100644
index 000000000..366df10ca
--- /dev/null
+++ b/nativelink-proto/genproto/com.github.trace_machina.nativelink.events.pb.rs
@@ -0,0 +1,365 @@
+// Copyright 2022 The NativeLink Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This file is @generated by prost-build.
+/// / Same as build.bazel.remote.execution.v2.BatchUpdateBlobsRequest,
+/// / but without the data field, and add a `data_len` field.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct BatchUpdateBlobsRequestOverride {
+    #[prost(string, tag = "1")]
+    pub instance_name: ::prost::alloc::string::String,
+    #[prost(message, repeated, tag = "2")]
+    pub requests: ::prost::alloc::vec::Vec<batch_update_blobs_request_override::Request>,
+    #[prost(
+        enumeration = "super::super::super::super::super::build::bazel::remote::execution::v2::digest_function::Value",
+        tag = "5"
+    )]
+    pub digest_function: i32,
+}
+/// Nested message and enum types in `BatchUpdateBlobsRequestOverride`.
+pub mod batch_update_blobs_request_override {
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct Request {
+        #[prost(message, optional, tag = "1")]
+        pub digest: ::core::option::Option<
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::Digest,
+        >,
+        #[prost(
+            enumeration = "super::super::super::super::super::super::build::bazel::remote::execution::v2::compressor::Value",
+            tag = "3"
+        )]
+        pub compressor: i32,
+        /// Override/new field to track the length of the data.
+        ///
+        /// Using 15 to stay at 1 byte, but higher than 3.
+        #[prost(uint64, tag = "15")]
+        pub data_len: u64,
+    }
+}
+/// / Same as build.bazel.remote.execution.v2.BatchReadBlobsResponse,
+/// / but without the data field, and add a `data_len` field.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct BatchReadBlobsResponseOverride {
+    #[prost(message, repeated, tag = "1")]
+    pub responses: ::prost::alloc::vec::Vec<
+        batch_read_blobs_response_override::Response,
+    >,
+}
+/// Nested message and enum types in `BatchReadBlobsResponseOverride`.
+pub mod batch_read_blobs_response_override {
+    #[derive(Clone, PartialEq, ::prost::Message)]
+    pub struct Response {
+        #[prost(message, optional, tag = "1")]
+        pub digest: ::core::option::Option<
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::Digest,
+        >,
+        #[prost(
+            enumeration = "super::super::super::super::super::super::build::bazel::remote::execution::v2::compressor::Value",
+            tag = "4"
+        )]
+        pub compressor: i32,
+        #[prost(message, optional, tag = "3")]
+        pub status: ::core::option::Option<
+            super::super::super::super::super::super::google::rpc::Status,
+        >,
+        /// Override/new field to track the length of the data.
+        ///
+        /// Using 15 to stay at 1 byte, but higher than 3.
+        #[prost(uint64, tag = "15")]
+        pub data_len: u64,
+    }
+}
+/// / Same as google.bytestream.WriteRequest, but without the data field,
+/// / and add a `data_len` field.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct WriteRequestOverride {
+    #[prost(string, tag = "1")]
+    pub resource_name: ::prost::alloc::string::String,
+    #[prost(int64, tag = "2")]
+    pub write_offset: i64,
+    #[prost(bool, tag = "3")]
+    pub finish_write: bool,
+    /// Override/new field to track the length of the data.
+    ///
+    /// Using 15 to stay at 1 byte, but higher than 3.
+    #[prost(uint64, tag = "15")]
+    pub data_len: u64,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct GetTreeStreamResponse {
+    #[prost(oneof = "get_tree_stream_response::Response", tags = "1, 2")]
+    pub response: ::core::option::Option<get_tree_stream_response::Response>,
+}
+/// Nested message and enum types in `GetTreeStreamResponse`.
+pub mod get_tree_stream_response {
+    #[derive(Clone, PartialEq, ::prost::Oneof)]
+    pub enum Response {
+        #[prost(message, tag = "1")]
+        Success(
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::GetTreeResponse,
+        ),
+        #[prost(message, tag = "2")]
+        Error(super::super::super::super::super::super::google::rpc::Status),
+    }
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ReadStreamResponse {
+    #[prost(oneof = "read_stream_response::Response", tags = "1, 2")]
+    pub response: ::core::option::Option<read_stream_response::Response>,
+}
+/// Nested message and enum types in `ReadStreamResponse`.
+pub mod read_stream_response {
+    #[derive(Clone, PartialEq, ::prost::Oneof)]
+    pub enum Response {
+        #[prost(uint64, tag = "1")]
+        Success(u64),
+        #[prost(message, tag = "2")]
+        Error(super::super::super::super::super::super::google::rpc::Status),
+    }
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct WriteStreamRequest {
+    #[prost(oneof = "write_stream_request::Response", tags = "1, 2")]
+    pub response: ::core::option::Option<write_stream_request::Response>,
+}
+/// Nested message and enum types in `WriteStreamRequest`.
+pub mod write_stream_request {
+    #[derive(Clone, PartialEq, ::prost::Oneof)]
+    pub enum Response {
+        #[prost(message, tag = "1")]
+        Success(super::WriteRequestOverride),
+        #[prost(message, tag = "2")]
+        Error(super::super::super::super::super::super::google::rpc::Status),
+    }
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ExecuteStreamResponse {
+    #[prost(oneof = "execute_stream_response::Response", tags = "1, 2")]
+    pub response: ::core::option::Option<execute_stream_response::Response>,
+}
+/// Nested message and enum types in `ExecuteStreamResponse`.
+pub mod execute_stream_response {
+    #[derive(Clone, PartialEq, ::prost::Oneof)]
+    pub enum Response {
+        #[prost(message, tag = "1")]
+        Success(
+            super::super::super::super::super::super::google::longrunning::Operation,
+        ),
+        #[prost(message, tag = "2")]
+        Error(super::super::super::super::super::super::google::rpc::Status),
+    }
+}
+/// / Nativelink event that has occurred.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct OriginEvent {
+    /// / The version of this message.
+    #[prost(uint32, tag = "1")]
+    pub version: u32,
+    /// / The event UUIDv6. This is a unique identifier for the event for the
+    /// / server that generated the event.
+    /// / Note: The timestamp of when the event occurred is encoded in the UUID.
+    #[prost(string, tag = "2")]
+    pub event_id: ::prost::alloc::string::String,
+    /// / \[optional\] The parent event UUID. This is used to track the
+    /// / parent event that generated this event. This is useful for
+    /// / tracking the flow of events.
+    #[prost(string, tag = "3")]
+    pub parent_event_id: ::prost::alloc::string::String,
+    /// / If the client is bazel, this is the meatadata that was sent with the
+    /// / request. This is useful for tracking the flow of events.
+    #[prost(message, optional, tag = "4")]
+    pub bazel_request_metadata: ::core::option::Option<
+        super::super::super::super::super::build::bazel::remote::execution::v2::RequestMetadata,
+    >,
+    /// / The identity header that generated the event. This will be populated with
+    /// / the value of the specified by the `IdentityHeaderSpec::header_name`.
+    #[prost(string, tag = "5")]
+    pub identity: ::prost::alloc::string::String,
+    /// / The event that occurred.
+    #[prost(
+        oneof = "origin_event::Event",
+        tags = "16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55"
+    )]
+    pub event: ::core::option::Option<origin_event::Event>,
+}
+/// Nested message and enum types in `OriginEvent`.
+pub mod origin_event {
+    /// / The event that occurred.
+    #[derive(Clone, PartialEq, ::prost::Oneof)]
+    pub enum Event {
+        #[prost(message, tag = "16")]
+        GetCapabilitiesRequest(
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::GetCapabilitiesRequest,
+        ),
+        /// Note: GetCapabilitiesRequest currently cannot error.
+        #[prost(message, tag = "17")]
+        GetCapabilitiesResponse(
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::ServerCapabilities,
+        ),
+        #[prost(message, tag = "18")]
+        GetActionResultRequest(
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::GetActionResultRequest,
+        ),
+        #[prost(message, tag = "19")]
+        GetActionResultResponse(
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::ActionResult,
+        ),
+        #[prost(message, tag = "20")]
+        GetActionResultError(
+            super::super::super::super::super::super::google::rpc::Status,
+        ),
+        #[prost(message, tag = "21")]
+        UpdateActionResultRequest(
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::UpdateActionResultRequest,
+        ),
+        #[prost(message, tag = "22")]
+        UpdateActionResultResponse(
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::ActionResult,
+        ),
+        #[prost(message, tag = "23")]
+        UpdateActionResultError(
+            super::super::super::super::super::super::google::rpc::Status,
+        ),
+        #[prost(message, tag = "24")]
+        FindMissingBlobsRequest(
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::FindMissingBlobsRequest,
+        ),
+        #[prost(message, tag = "25")]
+        FindMissingBlobsResponse(
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::FindMissingBlobsResponse,
+        ),
+        #[prost(message, tag = "26")]
+        FindMissingBlobsError(
+            super::super::super::super::super::super::google::rpc::Status,
+        ),
+        #[prost(message, tag = "27")]
+        BatchReadBlobsRequest(
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::BatchReadBlobsRequest,
+        ),
+        #[prost(message, tag = "28")]
+        BatchReadBlobsResponse(super::BatchReadBlobsResponseOverride),
+        #[prost(message, tag = "29")]
+        BatchReadBlobsError(
+            super::super::super::super::super::super::google::rpc::Status,
+        ),
+        #[prost(message, tag = "30")]
+        BatchUpdateBlobsRequest(super::BatchUpdateBlobsRequestOverride),
+        #[prost(message, tag = "31")]
+        BatchUpdateBlobsResponse(
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::BatchUpdateBlobsResponse,
+        ),
+        #[prost(message, tag = "32")]
+        BatchUpdateBlobsError(
+            super::super::super::super::super::super::google::rpc::Status,
+        ),
+        #[prost(message, tag = "33")]
+        GetTreeRequest(
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::GetTreeRequest,
+        ),
+        #[prost(message, tag = "34")]
+        GetTreeResponse(()),
+        #[prost(message, tag = "35")]
+        GetTreeError(super::super::super::super::super::super::google::rpc::Status),
+        #[prost(message, tag = "36")]
+        GetTreeStreamResponse(super::GetTreeStreamResponse),
+        #[prost(message, tag = "37")]
+        ReadRequest(
+            super::super::super::super::super::super::google::bytestream::ReadRequest,
+        ),
+        #[prost(message, tag = "38")]
+        ReadResponse(()),
+        #[prost(message, tag = "39")]
+        ReadError(super::super::super::super::super::super::google::rpc::Status),
+        #[prost(message, tag = "40")]
+        ReadStreamResponse(super::ReadStreamResponse),
+        #[prost(message, tag = "41")]
+        WriteRequest(()),
+        #[prost(message, tag = "42")]
+        WriteResponse(
+            super::super::super::super::super::super::google::bytestream::WriteResponse,
+        ),
+        #[prost(message, tag = "43")]
+        WriteError(super::super::super::super::super::super::google::rpc::Status),
+        #[prost(message, tag = "44")]
+        WriteStreamRequest(super::WriteStreamRequest),
+        #[prost(message, tag = "45")]
+        QueryWriteStatusRequest(
+            super::super::super::super::super::super::google::bytestream::QueryWriteStatusRequest,
+        ),
+        #[prost(message, tag = "46")]
+        QueryWriteStatusResponse(
+            super::super::super::super::super::super::google::bytestream::QueryWriteStatusResponse,
+        ),
+        #[prost(message, tag = "47")]
+        QueryWriteStatusError(
+            super::super::super::super::super::super::google::rpc::Status,
+        ),
+        #[prost(message, tag = "48")]
+        ExecuteRequest(
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::ExecuteRequest,
+        ),
+        #[prost(message, tag = "49")]
+        ExecuteResponse(()),
+        #[prost(message, tag = "50")]
+        ExecuteError(super::super::super::super::super::super::google::rpc::Status),
+        #[prost(message, tag = "51")]
+        ExecuteStreamResponse(super::ExecuteStreamResponse),
+        #[prost(message, tag = "52")]
+        WaitExecutionRequest(
+            super::super::super::super::super::super::build::bazel::remote::execution::v2::WaitExecutionRequest,
+        ),
+        #[prost(message, tag = "53")]
+        WaitExecutionResponse(()),
+        #[prost(message, tag = "54")]
+        WaitExecuteError(super::super::super::super::super::super::google::rpc::Status),
+        #[prost(message, tag = "55")]
+        WaitExecuteStreamResponse(super::ExecuteStreamResponse),
+    }
+}
+/// / Batch of events that have occurred.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct OriginEvents {
+    #[prost(message, repeated, tag = "1")]
+    pub events: ::prost::alloc::vec::Vec<OriginEvent>,
+}
+/// / Bep event that has occurred.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct BepEvent {
+    /// / The version of this message.
+    #[prost(uint32, tag = "1")]
+    pub version: u32,
+    /// / The identity header that generated the event. This will be populated
+    /// / with the header value keyed by the specified by the
+    /// / `IdentityHeaderSpec::header_name`.
+    #[prost(string, tag = "2")]
+    pub identity: ::prost::alloc::string::String,
+    /// / The event that occurred.
+    #[prost(oneof = "bep_event::Event", tags = "3, 4")]
+    pub event: ::core::option::Option<bep_event::Event>,
+}
+/// Nested message and enum types in `BepEvent`.
+pub mod bep_event {
+    /// / The event that occurred.
+    #[derive(Clone, PartialEq, ::prost::Oneof)]
+    pub enum Event {
+        #[prost(message, tag = "3")]
+        LifecycleEvent(
+            super::super::super::super::super::super::google::devtools::build::v1::PublishLifecycleEventRequest,
+        ),
+        #[prost(message, tag = "4")]
+        BuildToolEvent(
+            super::super::super::super::super::super::google::devtools::build::v1::PublishBuildToolEventStreamRequest,
+        ),
+    }
+}
diff --git a/nativelink-proto/genproto/command_line.pb.rs b/nativelink-proto/genproto/command_line.pb.rs
new file mode 100644
index 000000000..82bac3a1b
--- /dev/null
+++ b/nativelink-proto/genproto/command_line.pb.rs
@@ -0,0 +1,107 @@
+// Copyright 2022 The NativeLink Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This file is @generated by prost-build.
+/// Representation of a Bazel command line.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct CommandLine {
+    /// A title for this command line value, to differentiate it from others.
+    /// In particular, a single invocation may wish to report both the literal and
+    /// canonical command lines, and this label would be used to differentiate
+    /// between both versions. This is a string for flexibility.
+    #[prost(string, tag = "1")]
+    pub command_line_label: ::prost::alloc::string::String,
+    /// A Bazel command line is made of distinct parts. For example,
+    ///     `bazel --nomaster_bazelrc test --nocache_test_results //foo:aTest`
+    /// has the executable "bazel", a startup flag, a command "test", a command
+    /// flag, and a test target. There could be many more flags and targets, or
+    /// none (`bazel info` for example), but the basic structure is there. The
+    /// command line should be broken down into these logical sections here.
+    #[prost(message, repeated, tag = "2")]
+    pub sections: ::prost::alloc::vec::Vec<CommandLineSection>,
+}
+/// A section of the Bazel command line.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct CommandLineSection {
+    /// The name of this section, such as "startup_option" or "command".
+    #[prost(string, tag = "1")]
+    pub section_label: ::prost::alloc::string::String,
+    #[prost(oneof = "command_line_section::SectionType", tags = "2, 3")]
+    pub section_type: ::core::option::Option<command_line_section::SectionType>,
+}
+/// Nested message and enum types in `CommandLineSection`.
+pub mod command_line_section {
+    #[derive(Clone, PartialEq, ::prost::Oneof)]
+    pub enum SectionType {
+        /// Sections with non-options, such as the list of targets or the command,
+        /// should use simple string chunks.
+        #[prost(message, tag = "2")]
+        ChunkList(super::ChunkList),
+        /// Startup and command options are lists of options and belong here.
+        #[prost(message, tag = "3")]
+        OptionList(super::OptionList),
+    }
+}
+/// Wrapper to allow a list of strings in the "oneof" section_type.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ChunkList {
+    #[prost(string, repeated, tag = "1")]
+    pub chunk: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+}
+/// Wrapper to allow a list of options in the "oneof" section_type.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct OptionList {
+    #[prost(message, repeated, tag = "1")]
+    pub option: ::prost::alloc::vec::Vec<Option>,
+}
+/// A single command line option.
+///
+/// This represents the option itself, but does not take into account the type of
+/// option or how the parser interpreted it. If this option is part of a command
+/// line that represents the actual input that Bazel received, it would, for
+/// example, include expansion flags as they are. However, if this option
+/// represents the canonical form of the command line, with the values as Bazel
+/// understands them, then the expansion flag, which has no value, would not
+/// appear, and the flags it expands to would.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Option {
+    /// How the option looks with the option and its value combined. Depending on
+    /// the purpose of this command line report, this could be the canonical
+    /// form, or the way that the flag was set.
+    ///
+    /// Some examples: this might be `--foo=bar` form, or `--foo bar` with a space;
+    /// for boolean flags, `--nobaz` is accepted on top of `--baz=false` and other
+    /// negating values, or for a positive value, the unqualified `--baz` form
+    /// is also accepted. This could also be a short `-b`, if the flag has an
+    /// abbreviated form.
+    #[prost(string, tag = "1")]
+    pub combined_form: ::prost::alloc::string::String,
+    /// The canonical name of the option, without the preceding dashes.
+    #[prost(string, tag = "2")]
+    pub option_name: ::prost::alloc::string::String,
+    /// The value of the flag, or unset for flags that do not take values.
+    /// Especially for boolean flags, this should be in canonical form, the
+    /// combined_form field above gives room for showing the flag as it was set
+    /// if that is preferred.
+    #[prost(string, tag = "3")]
+    pub option_value: ::prost::alloc::string::String,
+    /// This flag's tagged effects. See OptionEffectTag's java documentation for
+    /// details.
+    #[prost(enumeration = "super::options::OptionEffectTag", repeated, tag = "4")]
+    pub effect_tags: ::prost::alloc::vec::Vec<i32>,
+    /// Metadata about the flag. See OptionMetadataTag's java documentation for
+    /// details.
+    #[prost(enumeration = "super::options::OptionMetadataTag", repeated, tag = "5")]
+    pub metadata_tags: ::prost::alloc::vec::Vec<i32>,
+}
diff --git a/nativelink-proto/genproto/devtools.build.lib.packages.metrics.pb.rs b/nativelink-proto/genproto/devtools.build.lib.packages.metrics.pb.rs
new file mode 100644
index 000000000..7dcadc625
--- /dev/null
+++ b/nativelink-proto/genproto/devtools.build.lib.packages.metrics.pb.rs
@@ -0,0 +1,39 @@
+// Copyright 2022 The NativeLink Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This file is @generated by prost-build.
+/// Message used to concisely report all package metrics.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct PackageLoadMetrics {
+    /// Name of the package.
+    #[prost(string, optional, tag = "1")]
+    pub name: ::core::option::Option<::prost::alloc::string::String>,
+    /// Wall-time duration it took to construct the package.
+    #[prost(message, optional, tag = "2")]
+    pub load_duration: ::core::option::Option<::prost_types::Duration>,
+    /// Number of targets created in the package.
+    #[prost(uint64, optional, tag = "3")]
+    pub num_targets: ::core::option::Option<u64>,
+    /// Number of Starlark computation steps required to create the package.
+    #[prost(uint64, optional, tag = "4")]
+    pub computation_steps: ::core::option::Option<u64>,
+    /// Number of transitive Starlark load()s required to create the package.
+    #[prost(uint64, optional, tag = "5")]
+    pub num_transitive_loads: ::core::option::Option<u64>,
+    /// Numeric value given to the memory and general accounting costs associated
+    /// with a loaded package. Values are an approximate but reasonable proxy for
+    /// the real storage costs of a package.
+    #[prost(uint64, optional, tag = "6")]
+    pub package_overhead: ::core::option::Option<u64>,
+}
diff --git a/nativelink-proto/genproto/failure_details.pb.rs b/nativelink-proto/genproto/failure_details.pb.rs
new file mode 100644
index 000000000..97d7a9a96
--- /dev/null
+++ b/nativelink-proto/genproto/failure_details.pb.rs
@@ -0,0 +1,4952 @@
+// Copyright 2022 The NativeLink Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This file is @generated by prost-build.
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct FailureDetailMetadata {
+    #[prost(uint32, tag = "1")]
+    pub exit_code: u32,
+}
+/// The FailureDetail message type is designed such that consumers can extract a
+/// basic classification of a FailureDetail message even if the consumer was
+/// built with a stale definition. This forward compatibility is implemented via
+/// conventions on FailureDetail and its submessage types, as follows.
+///
+/// *** FailureDetail field numbers
+///
+/// Field numbers 1 through 100 (inclusive) are reserved for generally applicable
+/// values. Any number of these fields may be set on a FailureDetail message.
+///
+/// Field numbers 101 through 10,000 (inclusive) are reserved for use inside the
+/// "oneof" structure. Only one of these values should be set on a FailureDetail
+/// message.
+///
+/// Additional fields numbers are unlikely to be needed, but, for extreme future-
+/// proofing purposes, field numbers 10,001 through 1,000,000 (inclusive;
+/// excluding protobuf's reserved range 19000 through 19999) are reserved for
+/// additional generally applicable values.
+///
+/// *** FailureDetail's "oneof" submessages
+///
+/// Each field in the "oneof" structure is a submessage corresponding to a
+/// category of failure.
+///
+/// In each of these submessage types, field number 1 is an enum whose values
+/// correspond to a subcategory of the failure. Generally, the enum's constant
+/// which maps to 0 should be interpreted as "unspecified", though this is not
+/// required.
+///
+/// *** Recommended forward compatibility strategy
+///
+/// The recommended forward compatibility strategy is to reduce a FailureDetail
+/// message to a pair of integers.
+///
+/// The first integer corresponds to the field number of the submessage set
+/// inside FailureDetail's "oneof", which corresponds with the failure's
+/// category.
+///
+/// The second integer corresponds to the value of the enum at field number 1
+/// within that submessage, which corresponds with the failure's subcategory.
+///
+/// WARNING: This functionality is experimental and should not be relied on at
+/// this time.
+/// TODO(mschaller): remove experimental warning
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct FailureDetail {
+    /// A short human-readable message describing the failure, for debugging.
+    ///
+    /// This value is *not* intended to be used algorithmically.
+    #[prost(string, tag = "1")]
+    pub message: ::prost::alloc::string::String,
+    #[prost(
+        oneof = "failure_detail::Category",
+        tags = "101, 103, 104, 106, 107, 108, 110, 114, 115, 116, 117, 118, 119, 121, 122, 123, 124, 125, 126, 127, 129, 130, 132, 134, 135, 136, 137, 139, 140, 141, 142, 144, 145, 146, 147, 148, 150, 151, 152, 153, 154, 158, 159, 160, 161, 162, 163, 164, 166, 167, 168, 169, 172, 173, 174, 175, 177, 179, 181, 182, 183, 184, 185, 186"
+    )]
+    pub category: ::core::option::Option<failure_detail::Category>,
+}
+/// Nested message and enum types in `FailureDetail`.
+pub mod failure_detail {
+    #[derive(Clone, PartialEq, ::prost::Oneof)]
+    pub enum Category {
+        #[prost(message, tag = "101")]
+        Interrupted(super::Interrupted),
+        #[prost(message, tag = "103")]
+        ExternalRepository(super::ExternalRepository),
+        #[prost(message, tag = "104")]
+        BuildProgress(super::BuildProgress),
+        #[prost(message, tag = "106")]
+        RemoteOptions(super::RemoteOptions),
+        #[prost(message, tag = "107")]
+        ClientEnvironment(super::ClientEnvironment),
+        #[prost(message, tag = "108")]
+        Crash(super::Crash),
+        #[prost(message, tag = "110")]
+        SymlinkForest(super::SymlinkForest),
+        #[prost(message, tag = "114")]
+        PackageOptions(super::PackageOptions),
+        #[prost(message, tag = "115")]
+        RemoteExecution(super::RemoteExecution),
+        #[prost(message, tag = "116")]
+        Execution(super::Execution),
+        #[prost(message, tag = "117")]
+        Workspaces(super::Workspaces),
+        #[prost(message, tag = "118")]
+        CrashOptions(super::CrashOptions),
+        #[prost(message, tag = "119")]
+        Filesystem(super::Filesystem),
+        #[prost(message, tag = "121")]
+        ExecutionOptions(super::ExecutionOptions),
+        #[prost(message, tag = "122")]
+        Command(super::Command),
+        #[prost(message, tag = "123")]
+        Spawn(super::Spawn),
+        #[prost(message, tag = "124")]
+        GrpcServer(super::GrpcServer),
+        #[prost(message, tag = "125")]
+        CanonicalizeFlags(super::CanonicalizeFlags),
+        #[prost(message, tag = "126")]
+        BuildConfiguration(super::BuildConfiguration),
+        #[prost(message, tag = "127")]
+        InfoCommand(super::InfoCommand),
+        #[prost(message, tag = "129")]
+        MemoryOptions(super::MemoryOptions),
+        #[prost(message, tag = "130")]
+        Query(super::Query),
+        #[prost(message, tag = "132")]
+        LocalExecution(super::LocalExecution),
+        #[prost(message, tag = "134")]
+        ActionCache(super::ActionCache),
+        #[prost(message, tag = "135")]
+        FetchCommand(super::FetchCommand),
+        #[prost(message, tag = "136")]
+        SyncCommand(super::SyncCommand),
+        #[prost(message, tag = "137")]
+        Sandbox(super::Sandbox),
+        #[prost(message, tag = "139")]
+        IncludeScanning(super::IncludeScanning),
+        #[prost(message, tag = "140")]
+        TestCommand(super::TestCommand),
+        #[prost(message, tag = "141")]
+        ActionQuery(super::ActionQuery),
+        #[prost(message, tag = "142")]
+        TargetPatterns(super::TargetPatterns),
+        #[prost(message, tag = "144")]
+        CleanCommand(super::CleanCommand),
+        #[prost(message, tag = "145")]
+        ConfigCommand(super::ConfigCommand),
+        #[prost(message, tag = "146")]
+        ConfigurableQuery(super::ConfigurableQuery),
+        #[prost(message, tag = "147")]
+        DumpCommand(super::DumpCommand),
+        #[prost(message, tag = "148")]
+        HelpCommand(super::HelpCommand),
+        #[prost(message, tag = "150")]
+        MobileInstall(super::MobileInstall),
+        #[prost(message, tag = "151")]
+        ProfileCommand(super::ProfileCommand),
+        #[prost(message, tag = "152")]
+        RunCommand(super::RunCommand),
+        #[prost(message, tag = "153")]
+        VersionCommand(super::VersionCommand),
+        #[prost(message, tag = "154")]
+        PrintActionCommand(super::PrintActionCommand),
+        #[prost(message, tag = "158")]
+        WorkspaceStatus(super::WorkspaceStatus),
+        #[prost(message, tag = "159")]
+        JavaCompile(super::JavaCompile),
+        #[prost(message, tag = "160")]
+        ActionRewinding(super::ActionRewinding),
+        #[prost(message, tag = "161")]
+        CppCompile(super::CppCompile),
+        #[prost(message, tag = "162")]
+        StarlarkAction(super::StarlarkAction),
+        #[prost(message, tag = "163")]
+        NinjaAction(super::NinjaAction),
+        #[prost(message, tag = "164")]
+        DynamicExecution(super::DynamicExecution),
+        #[prost(message, tag = "166")]
+        FailAction(super::FailAction),
+        #[prost(message, tag = "167")]
+        SymlinkAction(super::SymlinkAction),
+        #[prost(message, tag = "168")]
+        CppLink(super::CppLink),
+        #[prost(message, tag = "169")]
+        LtoAction(super::LtoAction),
+        #[prost(message, tag = "172")]
+        TestAction(super::TestAction),
+        #[prost(message, tag = "173")]
+        Worker(super::Worker),
+        #[prost(message, tag = "174")]
+        Analysis(super::Analysis),
+        #[prost(message, tag = "175")]
+        PackageLoading(super::PackageLoading),
+        #[prost(message, tag = "177")]
+        Toolchain(super::Toolchain),
+        #[prost(message, tag = "179")]
+        StarlarkLoading(super::StarlarkLoading),
+        #[prost(message, tag = "181")]
+        ExternalDeps(super::ExternalDeps),
+        #[prost(message, tag = "182")]
+        DiffAwareness(super::DiffAwareness),
+        #[prost(message, tag = "183")]
+        ModCommand(super::ModCommand),
+        #[prost(message, tag = "184")]
+        BuildReport(super::BuildReport),
+        #[prost(message, tag = "185")]
+        Skyfocus(super::Skyfocus),
+        #[prost(message, tag = "186")]
+        RemoteAnalysisCaching(super::RemoteAnalysisCaching),
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct Interrupted {
+    #[prost(enumeration = "interrupted::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `Interrupted`.
+pub mod interrupted {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        /// Unknown interrupt. Avoid using this code, instead use INTERRUPTED.
+        InterruptedUnknown = 0,
+        /// Command was interrupted (cancelled).
+        Interrupted = 28,
+        /// The following more specific interrupt codes have been deprecated and
+        /// consolidated into INTERRUPTED.
+        DeprecatedBuild = 4,
+        DeprecatedBuildCompletion = 5,
+        DeprecatedPackageLoadingSync = 6,
+        DeprecatedExecutorCompletion = 7,
+        DeprecatedCommandDispatch = 8,
+        DeprecatedInfoItem = 9,
+        DeprecatedAfterQuery = 10,
+        DeprecatedFetchCommand = 17,
+        DeprecatedSyncCommand = 18,
+        DeprecatedCleanCommand = 20,
+        DeprecatedMobileInstallCommand = 21,
+        DeprecatedQuery = 22,
+        DeprecatedRunCommand = 23,
+        DeprecatedOptionsParsing = 27,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::InterruptedUnknown => "INTERRUPTED_UNKNOWN",
+                Self::Interrupted => "INTERRUPTED",
+                Self::DeprecatedBuild => "DEPRECATED_BUILD",
+                Self::DeprecatedBuildCompletion => "DEPRECATED_BUILD_COMPLETION",
+                Self::DeprecatedPackageLoadingSync => "DEPRECATED_PACKAGE_LOADING_SYNC",
+                Self::DeprecatedExecutorCompletion => "DEPRECATED_EXECUTOR_COMPLETION",
+                Self::DeprecatedCommandDispatch => "DEPRECATED_COMMAND_DISPATCH",
+                Self::DeprecatedInfoItem => "DEPRECATED_INFO_ITEM",
+                Self::DeprecatedAfterQuery => "DEPRECATED_AFTER_QUERY",
+                Self::DeprecatedFetchCommand => "DEPRECATED_FETCH_COMMAND",
+                Self::DeprecatedSyncCommand => "DEPRECATED_SYNC_COMMAND",
+                Self::DeprecatedCleanCommand => "DEPRECATED_CLEAN_COMMAND",
+                Self::DeprecatedMobileInstallCommand => {
+                    "DEPRECATED_MOBILE_INSTALL_COMMAND"
+                }
+                Self::DeprecatedQuery => "DEPRECATED_QUERY",
+                Self::DeprecatedRunCommand => "DEPRECATED_RUN_COMMAND",
+                Self::DeprecatedOptionsParsing => "DEPRECATED_OPTIONS_PARSING",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "INTERRUPTED_UNKNOWN" => Some(Self::InterruptedUnknown),
+                "INTERRUPTED" => Some(Self::Interrupted),
+                "DEPRECATED_BUILD" => Some(Self::DeprecatedBuild),
+                "DEPRECATED_BUILD_COMPLETION" => Some(Self::DeprecatedBuildCompletion),
+                "DEPRECATED_PACKAGE_LOADING_SYNC" => {
+                    Some(Self::DeprecatedPackageLoadingSync)
+                }
+                "DEPRECATED_EXECUTOR_COMPLETION" => {
+                    Some(Self::DeprecatedExecutorCompletion)
+                }
+                "DEPRECATED_COMMAND_DISPATCH" => Some(Self::DeprecatedCommandDispatch),
+                "DEPRECATED_INFO_ITEM" => Some(Self::DeprecatedInfoItem),
+                "DEPRECATED_AFTER_QUERY" => Some(Self::DeprecatedAfterQuery),
+                "DEPRECATED_FETCH_COMMAND" => Some(Self::DeprecatedFetchCommand),
+                "DEPRECATED_SYNC_COMMAND" => Some(Self::DeprecatedSyncCommand),
+                "DEPRECATED_CLEAN_COMMAND" => Some(Self::DeprecatedCleanCommand),
+                "DEPRECATED_MOBILE_INSTALL_COMMAND" => {
+                    Some(Self::DeprecatedMobileInstallCommand)
+                }
+                "DEPRECATED_QUERY" => Some(Self::DeprecatedQuery),
+                "DEPRECATED_RUN_COMMAND" => Some(Self::DeprecatedRunCommand),
+                "DEPRECATED_OPTIONS_PARSING" => Some(Self::DeprecatedOptionsParsing),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct Spawn {
+    #[prost(enumeration = "spawn::Code", tag = "1")]
+    pub code: i32,
+    /// For Codes describing generic failure to spawn (eg. EXECUTION_FAILED and
+    /// EXECUTION_DENIED) the `catastrophic` field may be set to true indicating a
+    /// failure that immediately terminated the entire build tool.
+    #[prost(bool, tag = "2")]
+    pub catastrophic: bool,
+    /// If Code is NON_ZERO_EXIT, the `spawn_exit_code` field may be set to the
+    /// non-zero exit code returned by the spawned process to the OS.
+    ///
+    /// NOTE: This field must not be confused with the build tool's overall
+    /// exit code.
+    #[prost(int32, tag = "3")]
+    pub spawn_exit_code: i32,
+}
+/// Nested message and enum types in `Spawn`.
+pub mod spawn {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        SpawnUnknown = 0,
+        /// See the SpawnResult.Status Java enum for definitions of the following
+        /// Spawn failure codes.
+        NonZeroExit = 1,
+        Timeout = 2,
+        /// Note: Spawn OUT_OF_MEMORY leads to a BUILD_FAILURE exit_code because the
+        /// build tool itself did not run out of memory.
+        OutOfMemory = 3,
+        ExecutionFailed = 4,
+        ExecutionDenied = 5,
+        RemoteCacheFailed = 6,
+        CommandLineExpansionFailure = 7,
+        ExecIoException = 8,
+        InvalidTimeout = 9,
+        InvalidRemoteExecutionProperties = 10,
+        NoUsableStrategyFound = 11,
+        /// TODO(b/138456686): this code should be deprecated when SpawnResult is
+        ///    refactored to prohibit undetailed failures
+        UnspecifiedExecutionFailure = 12,
+        ForbiddenInput = 13,
+        /// This also includes other remote cache errors, not just evictions,
+        /// if --incompatible_remote_use_new_exit_code_for_lost_inputs is set.
+        /// TODO: Rename it to a more general name when
+        /// --experimental_remote_cache_eviction_retries is moved to
+        /// non-experimental.
+        RemoteCacheEvicted = 14,
+        SpawnLogIoException = 15,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::SpawnUnknown => "SPAWN_UNKNOWN",
+                Self::NonZeroExit => "NON_ZERO_EXIT",
+                Self::Timeout => "TIMEOUT",
+                Self::OutOfMemory => "OUT_OF_MEMORY",
+                Self::ExecutionFailed => "EXECUTION_FAILED",
+                Self::ExecutionDenied => "EXECUTION_DENIED",
+                Self::RemoteCacheFailed => "REMOTE_CACHE_FAILED",
+                Self::CommandLineExpansionFailure => "COMMAND_LINE_EXPANSION_FAILURE",
+                Self::ExecIoException => "EXEC_IO_EXCEPTION",
+                Self::InvalidTimeout => "INVALID_TIMEOUT",
+                Self::InvalidRemoteExecutionProperties => {
+                    "INVALID_REMOTE_EXECUTION_PROPERTIES"
+                }
+                Self::NoUsableStrategyFound => "NO_USABLE_STRATEGY_FOUND",
+                Self::UnspecifiedExecutionFailure => "UNSPECIFIED_EXECUTION_FAILURE",
+                Self::ForbiddenInput => "FORBIDDEN_INPUT",
+                Self::RemoteCacheEvicted => "REMOTE_CACHE_EVICTED",
+                Self::SpawnLogIoException => "SPAWN_LOG_IO_EXCEPTION",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "SPAWN_UNKNOWN" => Some(Self::SpawnUnknown),
+                "NON_ZERO_EXIT" => Some(Self::NonZeroExit),
+                "TIMEOUT" => Some(Self::Timeout),
+                "OUT_OF_MEMORY" => Some(Self::OutOfMemory),
+                "EXECUTION_FAILED" => Some(Self::ExecutionFailed),
+                "EXECUTION_DENIED" => Some(Self::ExecutionDenied),
+                "REMOTE_CACHE_FAILED" => Some(Self::RemoteCacheFailed),
+                "COMMAND_LINE_EXPANSION_FAILURE" => {
+                    Some(Self::CommandLineExpansionFailure)
+                }
+                "EXEC_IO_EXCEPTION" => Some(Self::ExecIoException),
+                "INVALID_TIMEOUT" => Some(Self::InvalidTimeout),
+                "INVALID_REMOTE_EXECUTION_PROPERTIES" => {
+                    Some(Self::InvalidRemoteExecutionProperties)
+                }
+                "NO_USABLE_STRATEGY_FOUND" => Some(Self::NoUsableStrategyFound),
+                "UNSPECIFIED_EXECUTION_FAILURE" => {
+                    Some(Self::UnspecifiedExecutionFailure)
+                }
+                "FORBIDDEN_INPUT" => Some(Self::ForbiddenInput),
+                "REMOTE_CACHE_EVICTED" => Some(Self::RemoteCacheEvicted),
+                "SPAWN_LOG_IO_EXCEPTION" => Some(Self::SpawnLogIoException),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct ExternalRepository {
+    /// Additional data could include external repository names.
+    #[prost(enumeration = "external_repository::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `ExternalRepository`.
+pub mod external_repository {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        ExternalRepositoryUnknown = 0,
+        OverrideDisallowedManagedDirectories = 1,
+        BadDownloaderConfig = 2,
+        RepositoryMappingResolutionFailed = 3,
+        CredentialsInitFailure = 4,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::ExternalRepositoryUnknown => "EXTERNAL_REPOSITORY_UNKNOWN",
+                Self::OverrideDisallowedManagedDirectories => {
+                    "OVERRIDE_DISALLOWED_MANAGED_DIRECTORIES"
+                }
+                Self::BadDownloaderConfig => "BAD_DOWNLOADER_CONFIG",
+                Self::RepositoryMappingResolutionFailed => {
+                    "REPOSITORY_MAPPING_RESOLUTION_FAILED"
+                }
+                Self::CredentialsInitFailure => "CREDENTIALS_INIT_FAILURE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "EXTERNAL_REPOSITORY_UNKNOWN" => Some(Self::ExternalRepositoryUnknown),
+                "OVERRIDE_DISALLOWED_MANAGED_DIRECTORIES" => {
+                    Some(Self::OverrideDisallowedManagedDirectories)
+                }
+                "BAD_DOWNLOADER_CONFIG" => Some(Self::BadDownloaderConfig),
+                "REPOSITORY_MAPPING_RESOLUTION_FAILED" => {
+                    Some(Self::RepositoryMappingResolutionFailed)
+                }
+                "CREDENTIALS_INIT_FAILURE" => Some(Self::CredentialsInitFailure),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct BuildProgress {
+    /// Additional data could include the build progress upload endpoint.
+    #[prost(enumeration = "build_progress::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `BuildProgress`.
+pub mod build_progress {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        BuildProgressUnknown = 0,
+        OutputInitialization = 3,
+        BesRunsPerTestLimitUnsupported = 4,
+        BesLocalWriteError = 5,
+        BesInitializationError = 6,
+        BesUploadTimeoutError = 7,
+        BesFileWriteTimeout = 8,
+        BesFileWriteIoError = 9,
+        BesFileWriteInterrupted = 10,
+        BesFileWriteCanceled = 11,
+        BesFileWriteUnknownError = 12,
+        BesUploadLocalFileError = 13,
+        BesStreamNotRetryingFailure = 14,
+        BesStreamCompletedWithUnackEventsError = 15,
+        BesStreamCompletedWithUnsentEventsError = 16,
+        BesStreamCompletedWithRemoteError = 19,
+        BesUploadRetryLimitExceededFailure = 17,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::BuildProgressUnknown => "BUILD_PROGRESS_UNKNOWN",
+                Self::OutputInitialization => "OUTPUT_INITIALIZATION",
+                Self::BesRunsPerTestLimitUnsupported => {
+                    "BES_RUNS_PER_TEST_LIMIT_UNSUPPORTED"
+                }
+                Self::BesLocalWriteError => "BES_LOCAL_WRITE_ERROR",
+                Self::BesInitializationError => "BES_INITIALIZATION_ERROR",
+                Self::BesUploadTimeoutError => "BES_UPLOAD_TIMEOUT_ERROR",
+                Self::BesFileWriteTimeout => "BES_FILE_WRITE_TIMEOUT",
+                Self::BesFileWriteIoError => "BES_FILE_WRITE_IO_ERROR",
+                Self::BesFileWriteInterrupted => "BES_FILE_WRITE_INTERRUPTED",
+                Self::BesFileWriteCanceled => "BES_FILE_WRITE_CANCELED",
+                Self::BesFileWriteUnknownError => "BES_FILE_WRITE_UNKNOWN_ERROR",
+                Self::BesUploadLocalFileError => "BES_UPLOAD_LOCAL_FILE_ERROR",
+                Self::BesStreamNotRetryingFailure => "BES_STREAM_NOT_RETRYING_FAILURE",
+                Self::BesStreamCompletedWithUnackEventsError => {
+                    "BES_STREAM_COMPLETED_WITH_UNACK_EVENTS_ERROR"
+                }
+                Self::BesStreamCompletedWithUnsentEventsError => {
+                    "BES_STREAM_COMPLETED_WITH_UNSENT_EVENTS_ERROR"
+                }
+                Self::BesStreamCompletedWithRemoteError => {
+                    "BES_STREAM_COMPLETED_WITH_REMOTE_ERROR"
+                }
+                Self::BesUploadRetryLimitExceededFailure => {
+                    "BES_UPLOAD_RETRY_LIMIT_EXCEEDED_FAILURE"
+                }
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "BUILD_PROGRESS_UNKNOWN" => Some(Self::BuildProgressUnknown),
+                "OUTPUT_INITIALIZATION" => Some(Self::OutputInitialization),
+                "BES_RUNS_PER_TEST_LIMIT_UNSUPPORTED" => {
+                    Some(Self::BesRunsPerTestLimitUnsupported)
+                }
+                "BES_LOCAL_WRITE_ERROR" => Some(Self::BesLocalWriteError),
+                "BES_INITIALIZATION_ERROR" => Some(Self::BesInitializationError),
+                "BES_UPLOAD_TIMEOUT_ERROR" => Some(Self::BesUploadTimeoutError),
+                "BES_FILE_WRITE_TIMEOUT" => Some(Self::BesFileWriteTimeout),
+                "BES_FILE_WRITE_IO_ERROR" => Some(Self::BesFileWriteIoError),
+                "BES_FILE_WRITE_INTERRUPTED" => Some(Self::BesFileWriteInterrupted),
+                "BES_FILE_WRITE_CANCELED" => Some(Self::BesFileWriteCanceled),
+                "BES_FILE_WRITE_UNKNOWN_ERROR" => Some(Self::BesFileWriteUnknownError),
+                "BES_UPLOAD_LOCAL_FILE_ERROR" => Some(Self::BesUploadLocalFileError),
+                "BES_STREAM_NOT_RETRYING_FAILURE" => {
+                    Some(Self::BesStreamNotRetryingFailure)
+                }
+                "BES_STREAM_COMPLETED_WITH_UNACK_EVENTS_ERROR" => {
+                    Some(Self::BesStreamCompletedWithUnackEventsError)
+                }
+                "BES_STREAM_COMPLETED_WITH_UNSENT_EVENTS_ERROR" => {
+                    Some(Self::BesStreamCompletedWithUnsentEventsError)
+                }
+                "BES_STREAM_COMPLETED_WITH_REMOTE_ERROR" => {
+                    Some(Self::BesStreamCompletedWithRemoteError)
+                }
+                "BES_UPLOAD_RETRY_LIMIT_EXCEEDED_FAILURE" => {
+                    Some(Self::BesUploadRetryLimitExceededFailure)
+                }
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct RemoteOptions {
+    #[prost(enumeration = "remote_options::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `RemoteOptions`.
+pub mod remote_options {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        RemoteOptionsUnknown = 0,
+        RemoteDefaultExecPropertiesLogicError = 1,
+        /// Credentials could not be read from the requested file/socket/process/etc.
+        CredentialsReadFailure = 2,
+        /// Credentials could not be written to a shared, temporary file.
+        CredentialsWriteFailure = 3,
+        DownloaderWithoutGrpcCache = 4,
+        ExecutionWithInvalidCache = 5,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::RemoteOptionsUnknown => "REMOTE_OPTIONS_UNKNOWN",
+                Self::RemoteDefaultExecPropertiesLogicError => {
+                    "REMOTE_DEFAULT_EXEC_PROPERTIES_LOGIC_ERROR"
+                }
+                Self::CredentialsReadFailure => "CREDENTIALS_READ_FAILURE",
+                Self::CredentialsWriteFailure => "CREDENTIALS_WRITE_FAILURE",
+                Self::DownloaderWithoutGrpcCache => "DOWNLOADER_WITHOUT_GRPC_CACHE",
+                Self::ExecutionWithInvalidCache => "EXECUTION_WITH_INVALID_CACHE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "REMOTE_OPTIONS_UNKNOWN" => Some(Self::RemoteOptionsUnknown),
+                "REMOTE_DEFAULT_EXEC_PROPERTIES_LOGIC_ERROR" => {
+                    Some(Self::RemoteDefaultExecPropertiesLogicError)
+                }
+                "CREDENTIALS_READ_FAILURE" => Some(Self::CredentialsReadFailure),
+                "CREDENTIALS_WRITE_FAILURE" => Some(Self::CredentialsWriteFailure),
+                "DOWNLOADER_WITHOUT_GRPC_CACHE" => Some(Self::DownloaderWithoutGrpcCache),
+                "EXECUTION_WITH_INVALID_CACHE" => Some(Self::ExecutionWithInvalidCache),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct ClientEnvironment {
+    #[prost(enumeration = "client_environment::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `ClientEnvironment`.
+pub mod client_environment {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        ClientEnvironmentUnknown = 0,
+        ClientCwdMalformed = 1,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::ClientEnvironmentUnknown => "CLIENT_ENVIRONMENT_UNKNOWN",
+                Self::ClientCwdMalformed => "CLIENT_CWD_MALFORMED",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "CLIENT_ENVIRONMENT_UNKNOWN" => Some(Self::ClientEnvironmentUnknown),
+                "CLIENT_CWD_MALFORMED" => Some(Self::ClientCwdMalformed),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Crash {
+    #[prost(enumeration = "crash::Code", tag = "1")]
+    pub code: i32,
+    /// The cause chain of the crash, with the outermost throwable first. Limited
+    /// to the outermost exception and at most 4 nested causes (so, max size of 5).
+    #[prost(message, repeated, tag = "2")]
+    pub causes: ::prost::alloc::vec::Vec<Throwable>,
+    /// True when the root cause of the crash was not an OutOfMemoryError, but
+    /// CRASH_OOM was chosen because an OutOfMemoryError was detected prior to the
+    /// crash.
+    #[prost(bool, tag = "3")]
+    pub oom_detector_override: bool,
+}
+/// Nested message and enum types in `Crash`.
+pub mod crash {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        CrashUnknown = 0,
+        CrashOom = 1,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::CrashUnknown => "CRASH_UNKNOWN",
+                Self::CrashOom => "CRASH_OOM",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "CRASH_UNKNOWN" => Some(Self::CrashUnknown),
+                "CRASH_OOM" => Some(Self::CrashOom),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Throwable {
+    /// The class name of the java.lang.Throwable.
+    #[prost(string, tag = "1")]
+    pub throwable_class: ::prost::alloc::string::String,
+    /// The throwable's message.
+    #[prost(string, tag = "2")]
+    pub message: ::prost::alloc::string::String,
+    /// The result of calling toString on the deepest (i.e. closest to the
+    /// throwable's construction site) 1000 (or fewer) StackTraceElements.
+    /// Unstructured to simplify string matching.
+    #[prost(string, repeated, tag = "3")]
+    pub stack_trace: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct SymlinkForest {
+    #[prost(enumeration = "symlink_forest::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `SymlinkForest`.
+pub mod symlink_forest {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        SymlinkForestUnknown = 0,
+        ToplevelOutdirPackagePathConflict = 1,
+        ToplevelOutdirUsedAsSource = 2,
+        CreationFailed = 3,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::SymlinkForestUnknown => "SYMLINK_FOREST_UNKNOWN",
+                Self::ToplevelOutdirPackagePathConflict => {
+                    "TOPLEVEL_OUTDIR_PACKAGE_PATH_CONFLICT"
+                }
+                Self::ToplevelOutdirUsedAsSource => "TOPLEVEL_OUTDIR_USED_AS_SOURCE",
+                Self::CreationFailed => "CREATION_FAILED",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "SYMLINK_FOREST_UNKNOWN" => Some(Self::SymlinkForestUnknown),
+                "TOPLEVEL_OUTDIR_PACKAGE_PATH_CONFLICT" => {
+                    Some(Self::ToplevelOutdirPackagePathConflict)
+                }
+                "TOPLEVEL_OUTDIR_USED_AS_SOURCE" => {
+                    Some(Self::ToplevelOutdirUsedAsSource)
+                }
+                "CREATION_FAILED" => Some(Self::CreationFailed),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct BuildReport {
+    /// Additional data for partial failures might include the build report that
+    /// failed to be written.
+    #[prost(enumeration = "build_report::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `BuildReport`.
+pub mod build_report {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        BuildReportUnknown = 0,
+        BuildReportUploaderNeedsPackagePaths = 1,
+        BuildReportWriteFailed = 2,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::BuildReportUnknown => "BUILD_REPORT_UNKNOWN",
+                Self::BuildReportUploaderNeedsPackagePaths => {
+                    "BUILD_REPORT_UPLOADER_NEEDS_PACKAGE_PATHS"
+                }
+                Self::BuildReportWriteFailed => "BUILD_REPORT_WRITE_FAILED",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "BUILD_REPORT_UNKNOWN" => Some(Self::BuildReportUnknown),
+                "BUILD_REPORT_UPLOADER_NEEDS_PACKAGE_PATHS" => {
+                    Some(Self::BuildReportUploaderNeedsPackagePaths)
+                }
+                "BUILD_REPORT_WRITE_FAILED" => Some(Self::BuildReportWriteFailed),
+                _ => None,
+            }
+        }
+    }
+}
+/// Failure details for errors produced when using Skyfocus
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct Skyfocus {
+    #[prost(enumeration = "skyfocus::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `Skyfocus`.
+pub mod skyfocus {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        /// The defined working set cannot be used for the focused targets. For
+        /// example, this happens when the intersection of the working set and the
+        /// transitive closure of the focused target is empty.
+        InvalidWorkingSet = 0,
+        /// The user needs to augment their working set to include the new file(s).
+        NonWorkingSetChange = 1,
+        ConfigurationChange = 2,
+        DisallowedOperationOnFocusedGraph = 3,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::InvalidWorkingSet => "INVALID_WORKING_SET",
+                Self::NonWorkingSetChange => "NON_WORKING_SET_CHANGE",
+                Self::ConfigurationChange => "CONFIGURATION_CHANGE",
+                Self::DisallowedOperationOnFocusedGraph => {
+                    "DISALLOWED_OPERATION_ON_FOCUSED_GRAPH"
+                }
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "INVALID_WORKING_SET" => Some(Self::InvalidWorkingSet),
+                "NON_WORKING_SET_CHANGE" => Some(Self::NonWorkingSetChange),
+                "CONFIGURATION_CHANGE" => Some(Self::ConfigurationChange),
+                "DISALLOWED_OPERATION_ON_FOCUSED_GRAPH" => {
+                    Some(Self::DisallowedOperationOnFocusedGraph)
+                }
+                _ => None,
+            }
+        }
+    }
+}
+/// Failure details for errors produced during remote analysis caching.
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct RemoteAnalysisCaching {
+    #[prost(enumeration = "remote_analysis_caching::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `RemoteAnalysisCaching`.
+pub mod remote_analysis_caching {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        RemoteAnalysisCachingUnknown = 0,
+        SerializedFrontierProfileFailed = 1,
+        ProjectFileNotFound = 2,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::RemoteAnalysisCachingUnknown => "REMOTE_ANALYSIS_CACHING_UNKNOWN",
+                Self::SerializedFrontierProfileFailed => {
+                    "SERIALIZED_FRONTIER_PROFILE_FAILED"
+                }
+                Self::ProjectFileNotFound => "PROJECT_FILE_NOT_FOUND",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "REMOTE_ANALYSIS_CACHING_UNKNOWN" => {
+                    Some(Self::RemoteAnalysisCachingUnknown)
+                }
+                "SERIALIZED_FRONTIER_PROFILE_FAILED" => {
+                    Some(Self::SerializedFrontierProfileFailed)
+                }
+                "PROJECT_FILE_NOT_FOUND" => Some(Self::ProjectFileNotFound),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct PackageOptions {
+    #[prost(enumeration = "package_options::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `PackageOptions`.
+pub mod package_options {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        PackageOptionsUnknown = 0,
+        PackagePathInvalid = 1,
+        NonsingletonPackagePath = 4,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::PackageOptionsUnknown => "PACKAGE_OPTIONS_UNKNOWN",
+                Self::PackagePathInvalid => "PACKAGE_PATH_INVALID",
+                Self::NonsingletonPackagePath => "NONSINGLETON_PACKAGE_PATH",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "PACKAGE_OPTIONS_UNKNOWN" => Some(Self::PackageOptionsUnknown),
+                "PACKAGE_PATH_INVALID" => Some(Self::PackagePathInvalid),
+                "NONSINGLETON_PACKAGE_PATH" => Some(Self::NonsingletonPackagePath),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct RemoteExecution {
+    #[prost(enumeration = "remote_execution::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `RemoteExecution`.
+pub mod remote_execution {
+    /// The association of some of these options with exit code 2, "command line
+    /// error", seems sketchy. Especially worth reconsidering are the channel init
+    /// failure modes, which can correspond to failures occurring in gRPC setup.
+    /// These all correspond with current Bazel behavior.
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        RemoteExecutionUnknown = 0,
+        CapabilitiesQueryFailure = 1,
+        CredentialsInitFailure = 2,
+        CacheInitFailure = 3,
+        RpcLogFailure = 4,
+        ExecChannelInitFailure = 5,
+        CacheChannelInitFailure = 6,
+        DownloaderChannelInitFailure = 7,
+        LogDirCleanupFailure = 8,
+        ClientServerIncompatible = 9,
+        DownloadedInputsDeletionFailure = 10,
+        RemoteDownloadOutputsMinimalWithoutInmemoryDotd = 11,
+        RemoteDownloadOutputsMinimalWithoutInmemoryJdeps = 12,
+        IncompleteOutputDownloadCleanupFailure = 13,
+        RemoteDefaultPlatformPropertiesParseFailure = 14,
+        IllegalOutput = 15,
+        InvalidExecAndPlatformProperties = 16,
+        ToplevelOutputsDownloadFailure = 17,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::RemoteExecutionUnknown => "REMOTE_EXECUTION_UNKNOWN",
+                Self::CapabilitiesQueryFailure => "CAPABILITIES_QUERY_FAILURE",
+                Self::CredentialsInitFailure => "CREDENTIALS_INIT_FAILURE",
+                Self::CacheInitFailure => "CACHE_INIT_FAILURE",
+                Self::RpcLogFailure => "RPC_LOG_FAILURE",
+                Self::ExecChannelInitFailure => "EXEC_CHANNEL_INIT_FAILURE",
+                Self::CacheChannelInitFailure => "CACHE_CHANNEL_INIT_FAILURE",
+                Self::DownloaderChannelInitFailure => "DOWNLOADER_CHANNEL_INIT_FAILURE",
+                Self::LogDirCleanupFailure => "LOG_DIR_CLEANUP_FAILURE",
+                Self::ClientServerIncompatible => "CLIENT_SERVER_INCOMPATIBLE",
+                Self::DownloadedInputsDeletionFailure => {
+                    "DOWNLOADED_INPUTS_DELETION_FAILURE"
+                }
+                Self::RemoteDownloadOutputsMinimalWithoutInmemoryDotd => {
+                    "REMOTE_DOWNLOAD_OUTPUTS_MINIMAL_WITHOUT_INMEMORY_DOTD"
+                }
+                Self::RemoteDownloadOutputsMinimalWithoutInmemoryJdeps => {
+                    "REMOTE_DOWNLOAD_OUTPUTS_MINIMAL_WITHOUT_INMEMORY_JDEPS"
+                }
+                Self::IncompleteOutputDownloadCleanupFailure => {
+                    "INCOMPLETE_OUTPUT_DOWNLOAD_CLEANUP_FAILURE"
+                }
+                Self::RemoteDefaultPlatformPropertiesParseFailure => {
+                    "REMOTE_DEFAULT_PLATFORM_PROPERTIES_PARSE_FAILURE"
+                }
+                Self::IllegalOutput => "ILLEGAL_OUTPUT",
+                Self::InvalidExecAndPlatformProperties => {
+                    "INVALID_EXEC_AND_PLATFORM_PROPERTIES"
+                }
+                Self::ToplevelOutputsDownloadFailure => {
+                    "TOPLEVEL_OUTPUTS_DOWNLOAD_FAILURE"
+                }
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "REMOTE_EXECUTION_UNKNOWN" => Some(Self::RemoteExecutionUnknown),
+                "CAPABILITIES_QUERY_FAILURE" => Some(Self::CapabilitiesQueryFailure),
+                "CREDENTIALS_INIT_FAILURE" => Some(Self::CredentialsInitFailure),
+                "CACHE_INIT_FAILURE" => Some(Self::CacheInitFailure),
+                "RPC_LOG_FAILURE" => Some(Self::RpcLogFailure),
+                "EXEC_CHANNEL_INIT_FAILURE" => Some(Self::ExecChannelInitFailure),
+                "CACHE_CHANNEL_INIT_FAILURE" => Some(Self::CacheChannelInitFailure),
+                "DOWNLOADER_CHANNEL_INIT_FAILURE" => {
+                    Some(Self::DownloaderChannelInitFailure)
+                }
+                "LOG_DIR_CLEANUP_FAILURE" => Some(Self::LogDirCleanupFailure),
+                "CLIENT_SERVER_INCOMPATIBLE" => Some(Self::ClientServerIncompatible),
+                "DOWNLOADED_INPUTS_DELETION_FAILURE" => {
+                    Some(Self::DownloadedInputsDeletionFailure)
+                }
+                "REMOTE_DOWNLOAD_OUTPUTS_MINIMAL_WITHOUT_INMEMORY_DOTD" => {
+                    Some(Self::RemoteDownloadOutputsMinimalWithoutInmemoryDotd)
+                }
+                "REMOTE_DOWNLOAD_OUTPUTS_MINIMAL_WITHOUT_INMEMORY_JDEPS" => {
+                    Some(Self::RemoteDownloadOutputsMinimalWithoutInmemoryJdeps)
+                }
+                "INCOMPLETE_OUTPUT_DOWNLOAD_CLEANUP_FAILURE" => {
+                    Some(Self::IncompleteOutputDownloadCleanupFailure)
+                }
+                "REMOTE_DEFAULT_PLATFORM_PROPERTIES_PARSE_FAILURE" => {
+                    Some(Self::RemoteDefaultPlatformPropertiesParseFailure)
+                }
+                "ILLEGAL_OUTPUT" => Some(Self::IllegalOutput),
+                "INVALID_EXEC_AND_PLATFORM_PROPERTIES" => {
+                    Some(Self::InvalidExecAndPlatformProperties)
+                }
+                "TOPLEVEL_OUTPUTS_DOWNLOAD_FAILURE" => {
+                    Some(Self::ToplevelOutputsDownloadFailure)
+                }
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct Execution {
+    #[prost(enumeration = "execution::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `Execution`.
+pub mod execution {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        ExecutionUnknown = 0,
+        ExecutionLogInitializationFailure = 1,
+        ExecutionLogWriteFailure = 2,
+        ExecrootCreationFailure = 3,
+        TempActionOutputDirectoryDeletionFailure = 4,
+        TempActionOutputDirectoryCreationFailure = 5,
+        PersistentActionOutputDirectoryCreationFailure = 6,
+        LocalOutputDirectorySymlinkFailure = 7,
+        /// SOURCE_INPUT_MISSING
+        LocalTemplateExpansionFailure = 9,
+        InputDirectoryCheckIoException = 10,
+        ExtraActionOutputCreationFailure = 11,
+        TestRunnerIoException = 12,
+        FileWriteIoException = 13,
+        TestOutErrIoException = 14,
+        SymlinkTreeManifestCopyIoException = 15,
+        SymlinkTreeManifestLinkIoException = 16,
+        SymlinkTreeCreationIoException = 17,
+        SymlinkTreeCreationCommandException = 18,
+        ActionInputReadIoException = 19,
+        ActionNotUpToDate = 20,
+        PseudoActionExecutionProhibited = 21,
+        DiscoveredInputDoesNotExist = 22,
+        ActionOutputsDeletionFailure = 23,
+        ActionOutputsNotCreated = 24,
+        ActionFinalizationFailure = 25,
+        ActionInputLost = 26,
+        FilesystemContextUpdateFailure = 27,
+        ActionOutputCloseFailure = 28,
+        InputDiscoveryIoException = 29,
+        TreeArtifactDirectoryCreationFailure = 30,
+        ActionOutputDirectoryCreationFailure = 31,
+        ActionFsOutputDirectoryCreationFailure = 32,
+        ActionFsOutErrDirectoryCreationFailure = 33,
+        NonActionExecutionFailure = 34,
+        Cycle = 35,
+        SourceInputMissing = 36,
+        UnexpectedException = 37,
+        SourceInputIoException = 39,
+        SymlinkTreeDeletionIoException = 40,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::ExecutionUnknown => "EXECUTION_UNKNOWN",
+                Self::ExecutionLogInitializationFailure => {
+                    "EXECUTION_LOG_INITIALIZATION_FAILURE"
+                }
+                Self::ExecutionLogWriteFailure => "EXECUTION_LOG_WRITE_FAILURE",
+                Self::ExecrootCreationFailure => "EXECROOT_CREATION_FAILURE",
+                Self::TempActionOutputDirectoryDeletionFailure => {
+                    "TEMP_ACTION_OUTPUT_DIRECTORY_DELETION_FAILURE"
+                }
+                Self::TempActionOutputDirectoryCreationFailure => {
+                    "TEMP_ACTION_OUTPUT_DIRECTORY_CREATION_FAILURE"
+                }
+                Self::PersistentActionOutputDirectoryCreationFailure => {
+                    "PERSISTENT_ACTION_OUTPUT_DIRECTORY_CREATION_FAILURE"
+                }
+                Self::LocalOutputDirectorySymlinkFailure => {
+                    "LOCAL_OUTPUT_DIRECTORY_SYMLINK_FAILURE"
+                }
+                Self::LocalTemplateExpansionFailure => "LOCAL_TEMPLATE_EXPANSION_FAILURE",
+                Self::InputDirectoryCheckIoException => {
+                    "INPUT_DIRECTORY_CHECK_IO_EXCEPTION"
+                }
+                Self::ExtraActionOutputCreationFailure => {
+                    "EXTRA_ACTION_OUTPUT_CREATION_FAILURE"
+                }
+                Self::TestRunnerIoException => "TEST_RUNNER_IO_EXCEPTION",
+                Self::FileWriteIoException => "FILE_WRITE_IO_EXCEPTION",
+                Self::TestOutErrIoException => "TEST_OUT_ERR_IO_EXCEPTION",
+                Self::SymlinkTreeManifestCopyIoException => {
+                    "SYMLINK_TREE_MANIFEST_COPY_IO_EXCEPTION"
+                }
+                Self::SymlinkTreeManifestLinkIoException => {
+                    "SYMLINK_TREE_MANIFEST_LINK_IO_EXCEPTION"
+                }
+                Self::SymlinkTreeCreationIoException => {
+                    "SYMLINK_TREE_CREATION_IO_EXCEPTION"
+                }
+                Self::SymlinkTreeCreationCommandException => {
+                    "SYMLINK_TREE_CREATION_COMMAND_EXCEPTION"
+                }
+                Self::ActionInputReadIoException => "ACTION_INPUT_READ_IO_EXCEPTION",
+                Self::ActionNotUpToDate => "ACTION_NOT_UP_TO_DATE",
+                Self::PseudoActionExecutionProhibited => {
+                    "PSEUDO_ACTION_EXECUTION_PROHIBITED"
+                }
+                Self::DiscoveredInputDoesNotExist => "DISCOVERED_INPUT_DOES_NOT_EXIST",
+                Self::ActionOutputsDeletionFailure => "ACTION_OUTPUTS_DELETION_FAILURE",
+                Self::ActionOutputsNotCreated => "ACTION_OUTPUTS_NOT_CREATED",
+                Self::ActionFinalizationFailure => "ACTION_FINALIZATION_FAILURE",
+                Self::ActionInputLost => "ACTION_INPUT_LOST",
+                Self::FilesystemContextUpdateFailure => {
+                    "FILESYSTEM_CONTEXT_UPDATE_FAILURE"
+                }
+                Self::ActionOutputCloseFailure => "ACTION_OUTPUT_CLOSE_FAILURE",
+                Self::InputDiscoveryIoException => "INPUT_DISCOVERY_IO_EXCEPTION",
+                Self::TreeArtifactDirectoryCreationFailure => {
+                    "TREE_ARTIFACT_DIRECTORY_CREATION_FAILURE"
+                }
+                Self::ActionOutputDirectoryCreationFailure => {
+                    "ACTION_OUTPUT_DIRECTORY_CREATION_FAILURE"
+                }
+                Self::ActionFsOutputDirectoryCreationFailure => {
+                    "ACTION_FS_OUTPUT_DIRECTORY_CREATION_FAILURE"
+                }
+                Self::ActionFsOutErrDirectoryCreationFailure => {
+                    "ACTION_FS_OUT_ERR_DIRECTORY_CREATION_FAILURE"
+                }
+                Self::NonActionExecutionFailure => "NON_ACTION_EXECUTION_FAILURE",
+                Self::Cycle => "CYCLE",
+                Self::SourceInputMissing => "SOURCE_INPUT_MISSING",
+                Self::UnexpectedException => "UNEXPECTED_EXCEPTION",
+                Self::SourceInputIoException => "SOURCE_INPUT_IO_EXCEPTION",
+                Self::SymlinkTreeDeletionIoException => {
+                    "SYMLINK_TREE_DELETION_IO_EXCEPTION"
+                }
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "EXECUTION_UNKNOWN" => Some(Self::ExecutionUnknown),
+                "EXECUTION_LOG_INITIALIZATION_FAILURE" => {
+                    Some(Self::ExecutionLogInitializationFailure)
+                }
+                "EXECUTION_LOG_WRITE_FAILURE" => Some(Self::ExecutionLogWriteFailure),
+                "EXECROOT_CREATION_FAILURE" => Some(Self::ExecrootCreationFailure),
+                "TEMP_ACTION_OUTPUT_DIRECTORY_DELETION_FAILURE" => {
+                    Some(Self::TempActionOutputDirectoryDeletionFailure)
+                }
+                "TEMP_ACTION_OUTPUT_DIRECTORY_CREATION_FAILURE" => {
+                    Some(Self::TempActionOutputDirectoryCreationFailure)
+                }
+                "PERSISTENT_ACTION_OUTPUT_DIRECTORY_CREATION_FAILURE" => {
+                    Some(Self::PersistentActionOutputDirectoryCreationFailure)
+                }
+                "LOCAL_OUTPUT_DIRECTORY_SYMLINK_FAILURE" => {
+                    Some(Self::LocalOutputDirectorySymlinkFailure)
+                }
+                "LOCAL_TEMPLATE_EXPANSION_FAILURE" => {
+                    Some(Self::LocalTemplateExpansionFailure)
+                }
+                "INPUT_DIRECTORY_CHECK_IO_EXCEPTION" => {
+                    Some(Self::InputDirectoryCheckIoException)
+                }
+                "EXTRA_ACTION_OUTPUT_CREATION_FAILURE" => {
+                    Some(Self::ExtraActionOutputCreationFailure)
+                }
+                "TEST_RUNNER_IO_EXCEPTION" => Some(Self::TestRunnerIoException),
+                "FILE_WRITE_IO_EXCEPTION" => Some(Self::FileWriteIoException),
+                "TEST_OUT_ERR_IO_EXCEPTION" => Some(Self::TestOutErrIoException),
+                "SYMLINK_TREE_MANIFEST_COPY_IO_EXCEPTION" => {
+                    Some(Self::SymlinkTreeManifestCopyIoException)
+                }
+                "SYMLINK_TREE_MANIFEST_LINK_IO_EXCEPTION" => {
+                    Some(Self::SymlinkTreeManifestLinkIoException)
+                }
+                "SYMLINK_TREE_CREATION_IO_EXCEPTION" => {
+                    Some(Self::SymlinkTreeCreationIoException)
+                }
+                "SYMLINK_TREE_CREATION_COMMAND_EXCEPTION" => {
+                    Some(Self::SymlinkTreeCreationCommandException)
+                }
+                "ACTION_INPUT_READ_IO_EXCEPTION" => {
+                    Some(Self::ActionInputReadIoException)
+                }
+                "ACTION_NOT_UP_TO_DATE" => Some(Self::ActionNotUpToDate),
+                "PSEUDO_ACTION_EXECUTION_PROHIBITED" => {
+                    Some(Self::PseudoActionExecutionProhibited)
+                }
+                "DISCOVERED_INPUT_DOES_NOT_EXIST" => {
+                    Some(Self::DiscoveredInputDoesNotExist)
+                }
+                "ACTION_OUTPUTS_DELETION_FAILURE" => {
+                    Some(Self::ActionOutputsDeletionFailure)
+                }
+                "ACTION_OUTPUTS_NOT_CREATED" => Some(Self::ActionOutputsNotCreated),
+                "ACTION_FINALIZATION_FAILURE" => Some(Self::ActionFinalizationFailure),
+                "ACTION_INPUT_LOST" => Some(Self::ActionInputLost),
+                "FILESYSTEM_CONTEXT_UPDATE_FAILURE" => {
+                    Some(Self::FilesystemContextUpdateFailure)
+                }
+                "ACTION_OUTPUT_CLOSE_FAILURE" => Some(Self::ActionOutputCloseFailure),
+                "INPUT_DISCOVERY_IO_EXCEPTION" => Some(Self::InputDiscoveryIoException),
+                "TREE_ARTIFACT_DIRECTORY_CREATION_FAILURE" => {
+                    Some(Self::TreeArtifactDirectoryCreationFailure)
+                }
+                "ACTION_OUTPUT_DIRECTORY_CREATION_FAILURE" => {
+                    Some(Self::ActionOutputDirectoryCreationFailure)
+                }
+                "ACTION_FS_OUTPUT_DIRECTORY_CREATION_FAILURE" => {
+                    Some(Self::ActionFsOutputDirectoryCreationFailure)
+                }
+                "ACTION_FS_OUT_ERR_DIRECTORY_CREATION_FAILURE" => {
+                    Some(Self::ActionFsOutErrDirectoryCreationFailure)
+                }
+                "NON_ACTION_EXECUTION_FAILURE" => Some(Self::NonActionExecutionFailure),
+                "CYCLE" => Some(Self::Cycle),
+                "SOURCE_INPUT_MISSING" => Some(Self::SourceInputMissing),
+                "UNEXPECTED_EXCEPTION" => Some(Self::UnexpectedException),
+                "SOURCE_INPUT_IO_EXCEPTION" => Some(Self::SourceInputIoException),
+                "SYMLINK_TREE_DELETION_IO_EXCEPTION" => {
+                    Some(Self::SymlinkTreeDeletionIoException)
+                }
+                _ => None,
+            }
+        }
+    }
+}
+/// Failure details about Bazel's WORKSPACE features.
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct Workspaces {
+    #[prost(enumeration = "workspaces::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `Workspaces`.
+pub mod workspaces {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        WorkspacesUnknown = 0,
+        WorkspacesLogInitializationFailure = 1,
+        WorkspacesLogWriteFailure = 2,
+        /// See `managed_directories` in
+        /// <https://bazel.build/rules/lib/globals#workspace.>
+        IllegalWorkspaceFileSymlinkWithManagedDirectories = 3,
+        WorkspaceFileReadFailureWithManagedDirectories = 4,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::WorkspacesUnknown => "WORKSPACES_UNKNOWN",
+                Self::WorkspacesLogInitializationFailure => {
+                    "WORKSPACES_LOG_INITIALIZATION_FAILURE"
+                }
+                Self::WorkspacesLogWriteFailure => "WORKSPACES_LOG_WRITE_FAILURE",
+                Self::IllegalWorkspaceFileSymlinkWithManagedDirectories => {
+                    "ILLEGAL_WORKSPACE_FILE_SYMLINK_WITH_MANAGED_DIRECTORIES"
+                }
+                Self::WorkspaceFileReadFailureWithManagedDirectories => {
+                    "WORKSPACE_FILE_READ_FAILURE_WITH_MANAGED_DIRECTORIES"
+                }
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "WORKSPACES_UNKNOWN" => Some(Self::WorkspacesUnknown),
+                "WORKSPACES_LOG_INITIALIZATION_FAILURE" => {
+                    Some(Self::WorkspacesLogInitializationFailure)
+                }
+                "WORKSPACES_LOG_WRITE_FAILURE" => Some(Self::WorkspacesLogWriteFailure),
+                "ILLEGAL_WORKSPACE_FILE_SYMLINK_WITH_MANAGED_DIRECTORIES" => {
+                    Some(Self::IllegalWorkspaceFileSymlinkWithManagedDirectories)
+                }
+                "WORKSPACE_FILE_READ_FAILURE_WITH_MANAGED_DIRECTORIES" => {
+                    Some(Self::WorkspaceFileReadFailureWithManagedDirectories)
+                }
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct CrashOptions {
+    #[prost(enumeration = "crash_options::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `CrashOptions`.
+pub mod crash_options {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        CrashOptionsUnknown = 0,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::CrashOptionsUnknown => "CRASH_OPTIONS_UNKNOWN",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "CRASH_OPTIONS_UNKNOWN" => Some(Self::CrashOptionsUnknown),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct Filesystem {
+    #[prost(enumeration = "filesystem::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `Filesystem`.
+pub mod filesystem {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        FilesystemUnknown = 0,
+        EmbeddedBinariesEnumerationFailure = 3,
+        ServerPidTxtFileReadFailure = 4,
+        ServerFileWriteFailure = 5,
+        DefaultDigestHashFunctionInvalidValue = 6,
+        FilesystemJniNotAvailable = 8,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::FilesystemUnknown => "FILESYSTEM_UNKNOWN",
+                Self::EmbeddedBinariesEnumerationFailure => {
+                    "EMBEDDED_BINARIES_ENUMERATION_FAILURE"
+                }
+                Self::ServerPidTxtFileReadFailure => "SERVER_PID_TXT_FILE_READ_FAILURE",
+                Self::ServerFileWriteFailure => "SERVER_FILE_WRITE_FAILURE",
+                Self::DefaultDigestHashFunctionInvalidValue => {
+                    "DEFAULT_DIGEST_HASH_FUNCTION_INVALID_VALUE"
+                }
+                Self::FilesystemJniNotAvailable => "FILESYSTEM_JNI_NOT_AVAILABLE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "FILESYSTEM_UNKNOWN" => Some(Self::FilesystemUnknown),
+                "EMBEDDED_BINARIES_ENUMERATION_FAILURE" => {
+                    Some(Self::EmbeddedBinariesEnumerationFailure)
+                }
+                "SERVER_PID_TXT_FILE_READ_FAILURE" => {
+                    Some(Self::ServerPidTxtFileReadFailure)
+                }
+                "SERVER_FILE_WRITE_FAILURE" => Some(Self::ServerFileWriteFailure),
+                "DEFAULT_DIGEST_HASH_FUNCTION_INVALID_VALUE" => {
+                    Some(Self::DefaultDigestHashFunctionInvalidValue)
+                }
+                "FILESYSTEM_JNI_NOT_AVAILABLE" => Some(Self::FilesystemJniNotAvailable),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct ExecutionOptions {
+    #[prost(enumeration = "execution_options::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `ExecutionOptions`.
+pub mod execution_options {
+    /// All numerical exit code associations correspond to pre-existing Bazel
+    /// behavior. These associations are suspicious:
+    /// - REQUESTED_STRATEGY_INCOMPATIBLE_WITH_SANDBOXING (instead: 2?)
+    /// - DEPRECATED_LOCAL_RESOURCES_USED (instead: 2?)
+    /// TODO(b/138456686): Revise these after the (intentionally non-breaking)
+    ///   initial rollout of FailureDetail-based encoding.
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        ExecutionOptionsUnknown = 0,
+        InvalidStrategy = 3,
+        RequestedStrategyIncompatibleWithSandboxing = 4,
+        DeprecatedLocalResourcesUsed = 5,
+        InvalidCyclicDynamicStrategy = 6,
+        RestrictionUnmatchedToActionContext = 7,
+        RemoteFallbackStrategyNotAbstractSpawn = 8,
+        StrategyNotFound = 9,
+        DynamicStrategyNotSandboxed = 10,
+        MultipleExecutionLogFormats = 11,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::ExecutionOptionsUnknown => "EXECUTION_OPTIONS_UNKNOWN",
+                Self::InvalidStrategy => "INVALID_STRATEGY",
+                Self::RequestedStrategyIncompatibleWithSandboxing => {
+                    "REQUESTED_STRATEGY_INCOMPATIBLE_WITH_SANDBOXING"
+                }
+                Self::DeprecatedLocalResourcesUsed => "DEPRECATED_LOCAL_RESOURCES_USED",
+                Self::InvalidCyclicDynamicStrategy => "INVALID_CYCLIC_DYNAMIC_STRATEGY",
+                Self::RestrictionUnmatchedToActionContext => {
+                    "RESTRICTION_UNMATCHED_TO_ACTION_CONTEXT"
+                }
+                Self::RemoteFallbackStrategyNotAbstractSpawn => {
+                    "REMOTE_FALLBACK_STRATEGY_NOT_ABSTRACT_SPAWN"
+                }
+                Self::StrategyNotFound => "STRATEGY_NOT_FOUND",
+                Self::DynamicStrategyNotSandboxed => "DYNAMIC_STRATEGY_NOT_SANDBOXED",
+                Self::MultipleExecutionLogFormats => "MULTIPLE_EXECUTION_LOG_FORMATS",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "EXECUTION_OPTIONS_UNKNOWN" => Some(Self::ExecutionOptionsUnknown),
+                "INVALID_STRATEGY" => Some(Self::InvalidStrategy),
+                "REQUESTED_STRATEGY_INCOMPATIBLE_WITH_SANDBOXING" => {
+                    Some(Self::RequestedStrategyIncompatibleWithSandboxing)
+                }
+                "DEPRECATED_LOCAL_RESOURCES_USED" => {
+                    Some(Self::DeprecatedLocalResourcesUsed)
+                }
+                "INVALID_CYCLIC_DYNAMIC_STRATEGY" => {
+                    Some(Self::InvalidCyclicDynamicStrategy)
+                }
+                "RESTRICTION_UNMATCHED_TO_ACTION_CONTEXT" => {
+                    Some(Self::RestrictionUnmatchedToActionContext)
+                }
+                "REMOTE_FALLBACK_STRATEGY_NOT_ABSTRACT_SPAWN" => {
+                    Some(Self::RemoteFallbackStrategyNotAbstractSpawn)
+                }
+                "STRATEGY_NOT_FOUND" => Some(Self::StrategyNotFound),
+                "DYNAMIC_STRATEGY_NOT_SANDBOXED" => {
+                    Some(Self::DynamicStrategyNotSandboxed)
+                }
+                "MULTIPLE_EXECUTION_LOG_FORMATS" => {
+                    Some(Self::MultipleExecutionLogFormats)
+                }
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct Command {
+    #[prost(enumeration = "command::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `Command`.
+pub mod command {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        /// The name "COMMAND_UNKNOWN" might reasonably be interpreted as "command
+        /// not found". The enum's default value should represent a lack of knowledge
+        /// about the failure instead.
+        CommandFailureUnknown = 0,
+        CommandNotFound = 1,
+        AnotherCommandRunning = 2,
+        PreviouslyShutdown = 3,
+        StarlarkCpuProfileFileInitializationFailure = 4,
+        StarlarkCpuProfilingInitializationFailure = 5,
+        StarlarkCpuProfileFileWriteFailure = 6,
+        InvocationPolicyParseFailure = 7,
+        InvocationPolicyInvalid = 8,
+        OptionsParseFailure = 9,
+        StarlarkOptionsParseFailure = 10,
+        ArgumentsNotRecognized = 11,
+        NotInWorkspace = 12,
+        InOutputDirectory = 14,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::CommandFailureUnknown => "COMMAND_FAILURE_UNKNOWN",
+                Self::CommandNotFound => "COMMAND_NOT_FOUND",
+                Self::AnotherCommandRunning => "ANOTHER_COMMAND_RUNNING",
+                Self::PreviouslyShutdown => "PREVIOUSLY_SHUTDOWN",
+                Self::StarlarkCpuProfileFileInitializationFailure => {
+                    "STARLARK_CPU_PROFILE_FILE_INITIALIZATION_FAILURE"
+                }
+                Self::StarlarkCpuProfilingInitializationFailure => {
+                    "STARLARK_CPU_PROFILING_INITIALIZATION_FAILURE"
+                }
+                Self::StarlarkCpuProfileFileWriteFailure => {
+                    "STARLARK_CPU_PROFILE_FILE_WRITE_FAILURE"
+                }
+                Self::InvocationPolicyParseFailure => "INVOCATION_POLICY_PARSE_FAILURE",
+                Self::InvocationPolicyInvalid => "INVOCATION_POLICY_INVALID",
+                Self::OptionsParseFailure => "OPTIONS_PARSE_FAILURE",
+                Self::StarlarkOptionsParseFailure => "STARLARK_OPTIONS_PARSE_FAILURE",
+                Self::ArgumentsNotRecognized => "ARGUMENTS_NOT_RECOGNIZED",
+                Self::NotInWorkspace => "NOT_IN_WORKSPACE",
+                Self::InOutputDirectory => "IN_OUTPUT_DIRECTORY",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "COMMAND_FAILURE_UNKNOWN" => Some(Self::CommandFailureUnknown),
+                "COMMAND_NOT_FOUND" => Some(Self::CommandNotFound),
+                "ANOTHER_COMMAND_RUNNING" => Some(Self::AnotherCommandRunning),
+                "PREVIOUSLY_SHUTDOWN" => Some(Self::PreviouslyShutdown),
+                "STARLARK_CPU_PROFILE_FILE_INITIALIZATION_FAILURE" => {
+                    Some(Self::StarlarkCpuProfileFileInitializationFailure)
+                }
+                "STARLARK_CPU_PROFILING_INITIALIZATION_FAILURE" => {
+                    Some(Self::StarlarkCpuProfilingInitializationFailure)
+                }
+                "STARLARK_CPU_PROFILE_FILE_WRITE_FAILURE" => {
+                    Some(Self::StarlarkCpuProfileFileWriteFailure)
+                }
+                "INVOCATION_POLICY_PARSE_FAILURE" => {
+                    Some(Self::InvocationPolicyParseFailure)
+                }
+                "INVOCATION_POLICY_INVALID" => Some(Self::InvocationPolicyInvalid),
+                "OPTIONS_PARSE_FAILURE" => Some(Self::OptionsParseFailure),
+                "STARLARK_OPTIONS_PARSE_FAILURE" => {
+                    Some(Self::StarlarkOptionsParseFailure)
+                }
+                "ARGUMENTS_NOT_RECOGNIZED" => Some(Self::ArgumentsNotRecognized),
+                "NOT_IN_WORKSPACE" => Some(Self::NotInWorkspace),
+                "IN_OUTPUT_DIRECTORY" => Some(Self::InOutputDirectory),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct GrpcServer {
+    #[prost(enumeration = "grpc_server::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `GrpcServer`.
+pub mod grpc_server {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        GrpcServerUnknown = 0,
+        GrpcServerNotCompiledIn = 1,
+        ServerBindFailure = 2,
+        BadCookie = 3,
+        NoClientDescription = 4,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::GrpcServerUnknown => "GRPC_SERVER_UNKNOWN",
+                Self::GrpcServerNotCompiledIn => "GRPC_SERVER_NOT_COMPILED_IN",
+                Self::ServerBindFailure => "SERVER_BIND_FAILURE",
+                Self::BadCookie => "BAD_COOKIE",
+                Self::NoClientDescription => "NO_CLIENT_DESCRIPTION",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "GRPC_SERVER_UNKNOWN" => Some(Self::GrpcServerUnknown),
+                "GRPC_SERVER_NOT_COMPILED_IN" => Some(Self::GrpcServerNotCompiledIn),
+                "SERVER_BIND_FAILURE" => Some(Self::ServerBindFailure),
+                "BAD_COOKIE" => Some(Self::BadCookie),
+                "NO_CLIENT_DESCRIPTION" => Some(Self::NoClientDescription),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct CanonicalizeFlags {
+    #[prost(enumeration = "canonicalize_flags::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `CanonicalizeFlags`.
+pub mod canonicalize_flags {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        CanonicalizeFlagsUnknown = 0,
+        ForCommandInvalid = 1,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::CanonicalizeFlagsUnknown => "CANONICALIZE_FLAGS_UNKNOWN",
+                Self::ForCommandInvalid => "FOR_COMMAND_INVALID",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "CANONICALIZE_FLAGS_UNKNOWN" => Some(Self::CanonicalizeFlagsUnknown),
+                "FOR_COMMAND_INVALID" => Some(Self::ForCommandInvalid),
+                _ => None,
+            }
+        }
+    }
+}
+/// Failure modes described by this category pertain to the Bazel invocation
+/// configuration consumed by Bazel's analysis phase. This category is not
+/// intended as a grab-bag for all Bazel flag value constraint violations, which
+/// instead generally belong in the category for the subsystem whose flag values
+/// participate in the constraint.
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct BuildConfiguration {
+    #[prost(enumeration = "build_configuration::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `BuildConfiguration`.
+pub mod build_configuration {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        BuildConfigurationUnknown = 0,
+        PlatformMappingEvaluationFailure = 1,
+        PlatformMappingsFileIsDirectory = 2,
+        PlatformMappingsFileNotFound = 3,
+        TopLevelConfigurationCreationFailure = 4,
+        InvalidConfiguration = 5,
+        InvalidBuildOptions = 6,
+        MultiCpuPrereqUnmet = 7,
+        HeuristicInstrumentationFilterInvalid = 8,
+        Cycle = 9,
+        ConflictingConfigurations = 10,
+        /// This can come from either an invalid user-specified option or a
+        /// configuration transition. There's no sure-fire way to distinguish the two
+        /// possibilities in Bazel, so we go with the more straightforward
+        /// command-line error exit code 2.
+        InvalidOutputDirectoryMnemonic = 11,
+        ConfigurationDiscardedAnalysisCache = 12,
+        /// Failure modes specific to PROJECT.scl files.
+        InvalidProject = 13,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::BuildConfigurationUnknown => "BUILD_CONFIGURATION_UNKNOWN",
+                Self::PlatformMappingEvaluationFailure => {
+                    "PLATFORM_MAPPING_EVALUATION_FAILURE"
+                }
+                Self::PlatformMappingsFileIsDirectory => {
+                    "PLATFORM_MAPPINGS_FILE_IS_DIRECTORY"
+                }
+                Self::PlatformMappingsFileNotFound => "PLATFORM_MAPPINGS_FILE_NOT_FOUND",
+                Self::TopLevelConfigurationCreationFailure => {
+                    "TOP_LEVEL_CONFIGURATION_CREATION_FAILURE"
+                }
+                Self::InvalidConfiguration => "INVALID_CONFIGURATION",
+                Self::InvalidBuildOptions => "INVALID_BUILD_OPTIONS",
+                Self::MultiCpuPrereqUnmet => "MULTI_CPU_PREREQ_UNMET",
+                Self::HeuristicInstrumentationFilterInvalid => {
+                    "HEURISTIC_INSTRUMENTATION_FILTER_INVALID"
+                }
+                Self::Cycle => "CYCLE",
+                Self::ConflictingConfigurations => "CONFLICTING_CONFIGURATIONS",
+                Self::InvalidOutputDirectoryMnemonic => {
+                    "INVALID_OUTPUT_DIRECTORY_MNEMONIC"
+                }
+                Self::ConfigurationDiscardedAnalysisCache => {
+                    "CONFIGURATION_DISCARDED_ANALYSIS_CACHE"
+                }
+                Self::InvalidProject => "INVALID_PROJECT",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "BUILD_CONFIGURATION_UNKNOWN" => Some(Self::BuildConfigurationUnknown),
+                "PLATFORM_MAPPING_EVALUATION_FAILURE" => {
+                    Some(Self::PlatformMappingEvaluationFailure)
+                }
+                "PLATFORM_MAPPINGS_FILE_IS_DIRECTORY" => {
+                    Some(Self::PlatformMappingsFileIsDirectory)
+                }
+                "PLATFORM_MAPPINGS_FILE_NOT_FOUND" => {
+                    Some(Self::PlatformMappingsFileNotFound)
+                }
+                "TOP_LEVEL_CONFIGURATION_CREATION_FAILURE" => {
+                    Some(Self::TopLevelConfigurationCreationFailure)
+                }
+                "INVALID_CONFIGURATION" => Some(Self::InvalidConfiguration),
+                "INVALID_BUILD_OPTIONS" => Some(Self::InvalidBuildOptions),
+                "MULTI_CPU_PREREQ_UNMET" => Some(Self::MultiCpuPrereqUnmet),
+                "HEURISTIC_INSTRUMENTATION_FILTER_INVALID" => {
+                    Some(Self::HeuristicInstrumentationFilterInvalid)
+                }
+                "CYCLE" => Some(Self::Cycle),
+                "CONFLICTING_CONFIGURATIONS" => Some(Self::ConflictingConfigurations),
+                "INVALID_OUTPUT_DIRECTORY_MNEMONIC" => {
+                    Some(Self::InvalidOutputDirectoryMnemonic)
+                }
+                "CONFIGURATION_DISCARDED_ANALYSIS_CACHE" => {
+                    Some(Self::ConfigurationDiscardedAnalysisCache)
+                }
+                "INVALID_PROJECT" => Some(Self::InvalidProject),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct InfoCommand {
+    #[prost(enumeration = "info_command::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `InfoCommand`.
+pub mod info_command {
+    /// The distinction between a failure to write a single info item and a failure
+    /// to write them all seems sketchy. Why do they have different exit codes?
+    /// This reflects current Bazel behavior, but deserves more thought.
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        InfoCommandUnknown = 0,
+        TooManyKeys = 1,
+        KeyNotRecognized = 2,
+        InfoBlockWriteFailure = 3,
+        AllInfoWriteFailure = 4,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::InfoCommandUnknown => "INFO_COMMAND_UNKNOWN",
+                Self::TooManyKeys => "TOO_MANY_KEYS",
+                Self::KeyNotRecognized => "KEY_NOT_RECOGNIZED",
+                Self::InfoBlockWriteFailure => "INFO_BLOCK_WRITE_FAILURE",
+                Self::AllInfoWriteFailure => "ALL_INFO_WRITE_FAILURE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "INFO_COMMAND_UNKNOWN" => Some(Self::InfoCommandUnknown),
+                "TOO_MANY_KEYS" => Some(Self::TooManyKeys),
+                "KEY_NOT_RECOGNIZED" => Some(Self::KeyNotRecognized),
+                "INFO_BLOCK_WRITE_FAILURE" => Some(Self::InfoBlockWriteFailure),
+                "ALL_INFO_WRITE_FAILURE" => Some(Self::AllInfoWriteFailure),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct MemoryOptions {
+    #[prost(enumeration = "memory_options::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `MemoryOptions`.
+pub mod memory_options {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        MemoryOptionsUnknown = 0,
+        /// Deprecated: validation is now implemented by the option converter.
+        DeprecatedExperimentalOomMoreEagerlyThresholdInvalidValue = 1,
+        /// Deprecated: no tenured collectors found is now a crash on startup.
+        DeprecatedExperimentalOomMoreEagerlyNoTenuredCollectorsFound = 2,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::MemoryOptionsUnknown => "MEMORY_OPTIONS_UNKNOWN",
+                Self::DeprecatedExperimentalOomMoreEagerlyThresholdInvalidValue => {
+                    "DEPRECATED_EXPERIMENTAL_OOM_MORE_EAGERLY_THRESHOLD_INVALID_VALUE"
+                }
+                Self::DeprecatedExperimentalOomMoreEagerlyNoTenuredCollectorsFound => {
+                    "DEPRECATED_EXPERIMENTAL_OOM_MORE_EAGERLY_NO_TENURED_COLLECTORS_FOUND"
+                }
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "MEMORY_OPTIONS_UNKNOWN" => Some(Self::MemoryOptionsUnknown),
+                "DEPRECATED_EXPERIMENTAL_OOM_MORE_EAGERLY_THRESHOLD_INVALID_VALUE" => {
+                    Some(Self::DeprecatedExperimentalOomMoreEagerlyThresholdInvalidValue)
+                }
+                "DEPRECATED_EXPERIMENTAL_OOM_MORE_EAGERLY_NO_TENURED_COLLECTORS_FOUND" => {
+                    Some(
+                        Self::DeprecatedExperimentalOomMoreEagerlyNoTenuredCollectorsFound,
+                    )
+                }
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct Query {
+    #[prost(enumeration = "query::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `Query`.
+pub mod query {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        QueryUnknown = 0,
+        QueryFileWithCommandLineExpression = 1,
+        QueryFileReadFailure = 2,
+        CommandLineExpressionMissing = 3,
+        OutputFormatInvalid = 4,
+        GraphlessPrereqUnmet = 5,
+        QueryOutputWriteFailure = 6,
+        QueryStdoutFlushFailure = 13,
+        AnalysisQueryPrereqUnmet = 14,
+        QueryResultsFlushFailure = 15,
+        /// Deprecated - folded into SYNTAX_ERROR.
+        DeprecatedUnclosedQuotationExpressionError = 16,
+        VariableNameInvalid = 17,
+        VariableUndefined = 18,
+        BuildfilesAndLoadfilesCannotUseOutputLocationError = 19,
+        BuildFileError = 20,
+        Cycle = 21,
+        UniqueSkykeyThresholdExceeded = 22,
+        TargetNotInUniverseScope = 23,
+        InvalidFullUniverseExpression = 24,
+        UniverseScopeLimitExceeded = 25,
+        InvalidationLimitExceeded = 26,
+        OutputFormatPrereqUnmet = 27,
+        ArgumentsMissing = 28,
+        RbuildfilesFunctionRequiresSkyquery = 29,
+        FullTargetsNotSupported = 30,
+        /// Deprecated - folded into SYNTAX_ERROR.
+        DeprecatedUnexpectedTokenError = 31,
+        /// Deprecated - folded into SYNTAX_ERROR.
+        DeprecatedIntegerLiteralMissing = 32,
+        /// Deprecated - folded into SYNTAX_ERROR.
+        DeprecatedInvalidStartingCharacterError = 33,
+        /// Deprecated - folded into SYNTAX_ERROR.
+        DeprecatedPrematureEndOfInputError = 34,
+        /// Indicates the user specified invalid query syntax.
+        SyntaxError = 35,
+        OutputFormatterIoException = 36,
+        SkyqueryTransitiveTargetError = 37,
+        SkyqueryTargetException = 38,
+        InvalidLabelInTestSuite = 39,
+        /// Indicates any usage of flags that must not be combined.
+        IllegalFlagCombination = 40,
+        /// Indicates a non-detailed exception that halted a query. This is a
+        /// deficiency in Blaze/Bazel and code should be changed to attach a detailed
+        /// exit code to this failure mode.
+        NonDetailedError = 41,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::QueryUnknown => "QUERY_UNKNOWN",
+                Self::QueryFileWithCommandLineExpression => {
+                    "QUERY_FILE_WITH_COMMAND_LINE_EXPRESSION"
+                }
+                Self::QueryFileReadFailure => "QUERY_FILE_READ_FAILURE",
+                Self::CommandLineExpressionMissing => "COMMAND_LINE_EXPRESSION_MISSING",
+                Self::OutputFormatInvalid => "OUTPUT_FORMAT_INVALID",
+                Self::GraphlessPrereqUnmet => "GRAPHLESS_PREREQ_UNMET",
+                Self::QueryOutputWriteFailure => "QUERY_OUTPUT_WRITE_FAILURE",
+                Self::QueryStdoutFlushFailure => "QUERY_STDOUT_FLUSH_FAILURE",
+                Self::AnalysisQueryPrereqUnmet => "ANALYSIS_QUERY_PREREQ_UNMET",
+                Self::QueryResultsFlushFailure => "QUERY_RESULTS_FLUSH_FAILURE",
+                Self::DeprecatedUnclosedQuotationExpressionError => {
+                    "DEPRECATED_UNCLOSED_QUOTATION_EXPRESSION_ERROR"
+                }
+                Self::VariableNameInvalid => "VARIABLE_NAME_INVALID",
+                Self::VariableUndefined => "VARIABLE_UNDEFINED",
+                Self::BuildfilesAndLoadfilesCannotUseOutputLocationError => {
+                    "BUILDFILES_AND_LOADFILES_CANNOT_USE_OUTPUT_LOCATION_ERROR"
+                }
+                Self::BuildFileError => "BUILD_FILE_ERROR",
+                Self::Cycle => "CYCLE",
+                Self::UniqueSkykeyThresholdExceeded => "UNIQUE_SKYKEY_THRESHOLD_EXCEEDED",
+                Self::TargetNotInUniverseScope => "TARGET_NOT_IN_UNIVERSE_SCOPE",
+                Self::InvalidFullUniverseExpression => "INVALID_FULL_UNIVERSE_EXPRESSION",
+                Self::UniverseScopeLimitExceeded => "UNIVERSE_SCOPE_LIMIT_EXCEEDED",
+                Self::InvalidationLimitExceeded => "INVALIDATION_LIMIT_EXCEEDED",
+                Self::OutputFormatPrereqUnmet => "OUTPUT_FORMAT_PREREQ_UNMET",
+                Self::ArgumentsMissing => "ARGUMENTS_MISSING",
+                Self::RbuildfilesFunctionRequiresSkyquery => {
+                    "RBUILDFILES_FUNCTION_REQUIRES_SKYQUERY"
+                }
+                Self::FullTargetsNotSupported => "FULL_TARGETS_NOT_SUPPORTED",
+                Self::DeprecatedUnexpectedTokenError => {
+                    "DEPRECATED_UNEXPECTED_TOKEN_ERROR"
+                }
+                Self::DeprecatedIntegerLiteralMissing => {
+                    "DEPRECATED_INTEGER_LITERAL_MISSING"
+                }
+                Self::DeprecatedInvalidStartingCharacterError => {
+                    "DEPRECATED_INVALID_STARTING_CHARACTER_ERROR"
+                }
+                Self::DeprecatedPrematureEndOfInputError => {
+                    "DEPRECATED_PREMATURE_END_OF_INPUT_ERROR"
+                }
+                Self::SyntaxError => "SYNTAX_ERROR",
+                Self::OutputFormatterIoException => "OUTPUT_FORMATTER_IO_EXCEPTION",
+                Self::SkyqueryTransitiveTargetError => "SKYQUERY_TRANSITIVE_TARGET_ERROR",
+                Self::SkyqueryTargetException => "SKYQUERY_TARGET_EXCEPTION",
+                Self::InvalidLabelInTestSuite => "INVALID_LABEL_IN_TEST_SUITE",
+                Self::IllegalFlagCombination => "ILLEGAL_FLAG_COMBINATION",
+                Self::NonDetailedError => "NON_DETAILED_ERROR",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "QUERY_UNKNOWN" => Some(Self::QueryUnknown),
+                "QUERY_FILE_WITH_COMMAND_LINE_EXPRESSION" => {
+                    Some(Self::QueryFileWithCommandLineExpression)
+                }
+                "QUERY_FILE_READ_FAILURE" => Some(Self::QueryFileReadFailure),
+                "COMMAND_LINE_EXPRESSION_MISSING" => {
+                    Some(Self::CommandLineExpressionMissing)
+                }
+                "OUTPUT_FORMAT_INVALID" => Some(Self::OutputFormatInvalid),
+                "GRAPHLESS_PREREQ_UNMET" => Some(Self::GraphlessPrereqUnmet),
+                "QUERY_OUTPUT_WRITE_FAILURE" => Some(Self::QueryOutputWriteFailure),
+                "QUERY_STDOUT_FLUSH_FAILURE" => Some(Self::QueryStdoutFlushFailure),
+                "ANALYSIS_QUERY_PREREQ_UNMET" => Some(Self::AnalysisQueryPrereqUnmet),
+                "QUERY_RESULTS_FLUSH_FAILURE" => Some(Self::QueryResultsFlushFailure),
+                "DEPRECATED_UNCLOSED_QUOTATION_EXPRESSION_ERROR" => {
+                    Some(Self::DeprecatedUnclosedQuotationExpressionError)
+                }
+                "VARIABLE_NAME_INVALID" => Some(Self::VariableNameInvalid),
+                "VARIABLE_UNDEFINED" => Some(Self::VariableUndefined),
+                "BUILDFILES_AND_LOADFILES_CANNOT_USE_OUTPUT_LOCATION_ERROR" => {
+                    Some(Self::BuildfilesAndLoadfilesCannotUseOutputLocationError)
+                }
+                "BUILD_FILE_ERROR" => Some(Self::BuildFileError),
+                "CYCLE" => Some(Self::Cycle),
+                "UNIQUE_SKYKEY_THRESHOLD_EXCEEDED" => {
+                    Some(Self::UniqueSkykeyThresholdExceeded)
+                }
+                "TARGET_NOT_IN_UNIVERSE_SCOPE" => Some(Self::TargetNotInUniverseScope),
+                "INVALID_FULL_UNIVERSE_EXPRESSION" => {
+                    Some(Self::InvalidFullUniverseExpression)
+                }
+                "UNIVERSE_SCOPE_LIMIT_EXCEEDED" => Some(Self::UniverseScopeLimitExceeded),
+                "INVALIDATION_LIMIT_EXCEEDED" => Some(Self::InvalidationLimitExceeded),
+                "OUTPUT_FORMAT_PREREQ_UNMET" => Some(Self::OutputFormatPrereqUnmet),
+                "ARGUMENTS_MISSING" => Some(Self::ArgumentsMissing),
+                "RBUILDFILES_FUNCTION_REQUIRES_SKYQUERY" => {
+                    Some(Self::RbuildfilesFunctionRequiresSkyquery)
+                }
+                "FULL_TARGETS_NOT_SUPPORTED" => Some(Self::FullTargetsNotSupported),
+                "DEPRECATED_UNEXPECTED_TOKEN_ERROR" => {
+                    Some(Self::DeprecatedUnexpectedTokenError)
+                }
+                "DEPRECATED_INTEGER_LITERAL_MISSING" => {
+                    Some(Self::DeprecatedIntegerLiteralMissing)
+                }
+                "DEPRECATED_INVALID_STARTING_CHARACTER_ERROR" => {
+                    Some(Self::DeprecatedInvalidStartingCharacterError)
+                }
+                "DEPRECATED_PREMATURE_END_OF_INPUT_ERROR" => {
+                    Some(Self::DeprecatedPrematureEndOfInputError)
+                }
+                "SYNTAX_ERROR" => Some(Self::SyntaxError),
+                "OUTPUT_FORMATTER_IO_EXCEPTION" => Some(Self::OutputFormatterIoException),
+                "SKYQUERY_TRANSITIVE_TARGET_ERROR" => {
+                    Some(Self::SkyqueryTransitiveTargetError)
+                }
+                "SKYQUERY_TARGET_EXCEPTION" => Some(Self::SkyqueryTargetException),
+                "INVALID_LABEL_IN_TEST_SUITE" => Some(Self::InvalidLabelInTestSuite),
+                "ILLEGAL_FLAG_COMBINATION" => Some(Self::IllegalFlagCombination),
+                "NON_DETAILED_ERROR" => Some(Self::NonDetailedError),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct LocalExecution {
+    #[prost(enumeration = "local_execution::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `LocalExecution`.
+pub mod local_execution {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        LocalExecutionUnknown = 0,
+        LockfreeOutputPrereqUnmet = 1,
+        UntrackedResource = 2,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::LocalExecutionUnknown => "LOCAL_EXECUTION_UNKNOWN",
+                Self::LockfreeOutputPrereqUnmet => "LOCKFREE_OUTPUT_PREREQ_UNMET",
+                Self::UntrackedResource => "UNTRACKED_RESOURCE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "LOCAL_EXECUTION_UNKNOWN" => Some(Self::LocalExecutionUnknown),
+                "LOCKFREE_OUTPUT_PREREQ_UNMET" => Some(Self::LockfreeOutputPrereqUnmet),
+                "UNTRACKED_RESOURCE" => Some(Self::UntrackedResource),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct ActionCache {
+    #[prost(enumeration = "action_cache::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `ActionCache`.
+pub mod action_cache {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        ActionCacheUnknown = 0,
+        InitializationFailure = 1,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::ActionCacheUnknown => "ACTION_CACHE_UNKNOWN",
+                Self::InitializationFailure => "INITIALIZATION_FAILURE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "ACTION_CACHE_UNKNOWN" => Some(Self::ActionCacheUnknown),
+                "INITIALIZATION_FAILURE" => Some(Self::InitializationFailure),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct FetchCommand {
+    #[prost(enumeration = "fetch_command::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `FetchCommand`.
+pub mod fetch_command {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        FetchCommandUnknown = 0,
+        ExpressionMissing = 1,
+        OptionsInvalid = 2,
+        QueryParseError = 3,
+        QueryEvaluationError = 4,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::FetchCommandUnknown => "FETCH_COMMAND_UNKNOWN",
+                Self::ExpressionMissing => "EXPRESSION_MISSING",
+                Self::OptionsInvalid => "OPTIONS_INVALID",
+                Self::QueryParseError => "QUERY_PARSE_ERROR",
+                Self::QueryEvaluationError => "QUERY_EVALUATION_ERROR",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "FETCH_COMMAND_UNKNOWN" => Some(Self::FetchCommandUnknown),
+                "EXPRESSION_MISSING" => Some(Self::ExpressionMissing),
+                "OPTIONS_INVALID" => Some(Self::OptionsInvalid),
+                "QUERY_PARSE_ERROR" => Some(Self::QueryParseError),
+                "QUERY_EVALUATION_ERROR" => Some(Self::QueryEvaluationError),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct SyncCommand {
+    #[prost(enumeration = "sync_command::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `SyncCommand`.
+pub mod sync_command {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        SyncCommandUnknown = 0,
+        PackageLookupError = 1,
+        WorkspaceEvaluationError = 2,
+        RepositoryFetchErrors = 3,
+        RepositoryNameInvalid = 4,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::SyncCommandUnknown => "SYNC_COMMAND_UNKNOWN",
+                Self::PackageLookupError => "PACKAGE_LOOKUP_ERROR",
+                Self::WorkspaceEvaluationError => "WORKSPACE_EVALUATION_ERROR",
+                Self::RepositoryFetchErrors => "REPOSITORY_FETCH_ERRORS",
+                Self::RepositoryNameInvalid => "REPOSITORY_NAME_INVALID",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "SYNC_COMMAND_UNKNOWN" => Some(Self::SyncCommandUnknown),
+                "PACKAGE_LOOKUP_ERROR" => Some(Self::PackageLookupError),
+                "WORKSPACE_EVALUATION_ERROR" => Some(Self::WorkspaceEvaluationError),
+                "REPOSITORY_FETCH_ERRORS" => Some(Self::RepositoryFetchErrors),
+                "REPOSITORY_NAME_INVALID" => Some(Self::RepositoryNameInvalid),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct Sandbox {
+    #[prost(enumeration = "sandbox::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `Sandbox`.
+pub mod sandbox {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        SandboxFailureUnknown = 0,
+        InitializationFailure = 1,
+        ExecutionIoException = 2,
+        DockerCommandFailure = 3,
+        NoDockerImage = 4,
+        DockerImagePreparationFailure = 5,
+        BindMountAnalysisFailure = 6,
+        MountSourceDoesNotExist = 7,
+        MountSourceTargetTypeMismatch = 8,
+        MountTargetDoesNotExist = 9,
+        SubprocessStartFailed = 10,
+        ForbiddenInput = 11,
+        CopyInputsIoException = 12,
+        CopyOutputsIoException = 13,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::SandboxFailureUnknown => "SANDBOX_FAILURE_UNKNOWN",
+                Self::InitializationFailure => "INITIALIZATION_FAILURE",
+                Self::ExecutionIoException => "EXECUTION_IO_EXCEPTION",
+                Self::DockerCommandFailure => "DOCKER_COMMAND_FAILURE",
+                Self::NoDockerImage => "NO_DOCKER_IMAGE",
+                Self::DockerImagePreparationFailure => "DOCKER_IMAGE_PREPARATION_FAILURE",
+                Self::BindMountAnalysisFailure => "BIND_MOUNT_ANALYSIS_FAILURE",
+                Self::MountSourceDoesNotExist => "MOUNT_SOURCE_DOES_NOT_EXIST",
+                Self::MountSourceTargetTypeMismatch => {
+                    "MOUNT_SOURCE_TARGET_TYPE_MISMATCH"
+                }
+                Self::MountTargetDoesNotExist => "MOUNT_TARGET_DOES_NOT_EXIST",
+                Self::SubprocessStartFailed => "SUBPROCESS_START_FAILED",
+                Self::ForbiddenInput => "FORBIDDEN_INPUT",
+                Self::CopyInputsIoException => "COPY_INPUTS_IO_EXCEPTION",
+                Self::CopyOutputsIoException => "COPY_OUTPUTS_IO_EXCEPTION",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "SANDBOX_FAILURE_UNKNOWN" => Some(Self::SandboxFailureUnknown),
+                "INITIALIZATION_FAILURE" => Some(Self::InitializationFailure),
+                "EXECUTION_IO_EXCEPTION" => Some(Self::ExecutionIoException),
+                "DOCKER_COMMAND_FAILURE" => Some(Self::DockerCommandFailure),
+                "NO_DOCKER_IMAGE" => Some(Self::NoDockerImage),
+                "DOCKER_IMAGE_PREPARATION_FAILURE" => {
+                    Some(Self::DockerImagePreparationFailure)
+                }
+                "BIND_MOUNT_ANALYSIS_FAILURE" => Some(Self::BindMountAnalysisFailure),
+                "MOUNT_SOURCE_DOES_NOT_EXIST" => Some(Self::MountSourceDoesNotExist),
+                "MOUNT_SOURCE_TARGET_TYPE_MISMATCH" => {
+                    Some(Self::MountSourceTargetTypeMismatch)
+                }
+                "MOUNT_TARGET_DOES_NOT_EXIST" => Some(Self::MountTargetDoesNotExist),
+                "SUBPROCESS_START_FAILED" => Some(Self::SubprocessStartFailed),
+                "FORBIDDEN_INPUT" => Some(Self::ForbiddenInput),
+                "COPY_INPUTS_IO_EXCEPTION" => Some(Self::CopyInputsIoException),
+                "COPY_OUTPUTS_IO_EXCEPTION" => Some(Self::CopyOutputsIoException),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct IncludeScanning {
+    #[prost(enumeration = "include_scanning::Code", tag = "1")]
+    pub code: i32,
+    #[prost(enumeration = "package_loading::Code", tag = "2")]
+    pub package_loading_code: i32,
+}
+/// Nested message and enum types in `IncludeScanning`.
+pub mod include_scanning {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        IncludeScanningUnknown = 0,
+        InitializeIncludeHintsError = 1,
+        ScanningIoException = 2,
+        IncludeHintsFileNotInPackage = 3,
+        IncludeHintsReadFailure = 4,
+        IllegalAbsolutePath = 5,
+        /// TODO(b/166268889): this code should be deprecated in favor of more finely
+        ///   resolved loading-phase codes.
+        PackageLoadFailure = 6,
+        UserPackageLoadFailure = 7,
+        SystemPackageLoadFailure = 8,
+        UndifferentiatedPackageLoadFailure = 9,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::IncludeScanningUnknown => "INCLUDE_SCANNING_UNKNOWN",
+                Self::InitializeIncludeHintsError => "INITIALIZE_INCLUDE_HINTS_ERROR",
+                Self::ScanningIoException => "SCANNING_IO_EXCEPTION",
+                Self::IncludeHintsFileNotInPackage => "INCLUDE_HINTS_FILE_NOT_IN_PACKAGE",
+                Self::IncludeHintsReadFailure => "INCLUDE_HINTS_READ_FAILURE",
+                Self::IllegalAbsolutePath => "ILLEGAL_ABSOLUTE_PATH",
+                Self::PackageLoadFailure => "PACKAGE_LOAD_FAILURE",
+                Self::UserPackageLoadFailure => "USER_PACKAGE_LOAD_FAILURE",
+                Self::SystemPackageLoadFailure => "SYSTEM_PACKAGE_LOAD_FAILURE",
+                Self::UndifferentiatedPackageLoadFailure => {
+                    "UNDIFFERENTIATED_PACKAGE_LOAD_FAILURE"
+                }
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "INCLUDE_SCANNING_UNKNOWN" => Some(Self::IncludeScanningUnknown),
+                "INITIALIZE_INCLUDE_HINTS_ERROR" => {
+                    Some(Self::InitializeIncludeHintsError)
+                }
+                "SCANNING_IO_EXCEPTION" => Some(Self::ScanningIoException),
+                "INCLUDE_HINTS_FILE_NOT_IN_PACKAGE" => {
+                    Some(Self::IncludeHintsFileNotInPackage)
+                }
+                "INCLUDE_HINTS_READ_FAILURE" => Some(Self::IncludeHintsReadFailure),
+                "ILLEGAL_ABSOLUTE_PATH" => Some(Self::IllegalAbsolutePath),
+                "PACKAGE_LOAD_FAILURE" => Some(Self::PackageLoadFailure),
+                "USER_PACKAGE_LOAD_FAILURE" => Some(Self::UserPackageLoadFailure),
+                "SYSTEM_PACKAGE_LOAD_FAILURE" => Some(Self::SystemPackageLoadFailure),
+                "UNDIFFERENTIATED_PACKAGE_LOAD_FAILURE" => {
+                    Some(Self::UndifferentiatedPackageLoadFailure)
+                }
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct TestCommand {
+    #[prost(enumeration = "test_command::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `TestCommand`.
+pub mod test_command {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        TestCommandUnknown = 0,
+        NoTestTargets = 1,
+        TestWithNoanalyze = 2,
+        TestsFailed = 3,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::TestCommandUnknown => "TEST_COMMAND_UNKNOWN",
+                Self::NoTestTargets => "NO_TEST_TARGETS",
+                Self::TestWithNoanalyze => "TEST_WITH_NOANALYZE",
+                Self::TestsFailed => "TESTS_FAILED",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "TEST_COMMAND_UNKNOWN" => Some(Self::TestCommandUnknown),
+                "NO_TEST_TARGETS" => Some(Self::NoTestTargets),
+                "TEST_WITH_NOANALYZE" => Some(Self::TestWithNoanalyze),
+                "TESTS_FAILED" => Some(Self::TestsFailed),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct ActionQuery {
+    #[prost(enumeration = "action_query::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `ActionQuery`.
+pub mod action_query {
+    /// All numerical exit code associations correspond to pre-existing Bazel
+    /// behavior. These associations are suspicious:
+    /// - COMMAND_LINE_EXPANSION_FAILURE: this is associated with 2, the numerical
+    ///      exit code for "bad Bazel command line", but is generated when an
+    ///      action's command line fails to expand, which sounds similar but is
+    ///      completely different.
+    /// - OUTPUT_FAILURE: this is associated with 6, an undocumented exit code.
+    /// - INVALID_AQUERY_EXPRESSION: this is associate with 1, which is not
+    ///     documented for (a)query.
+    /// TODO(b/138456686): Revise these after the (intentionally non-breaking)
+    ///   initial rollout of FailureDetail-based encoding.
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        ActionQueryUnknown = 0,
+        CommandLineExpansionFailure = 1,
+        OutputFailure = 2,
+        CommandLineExpressionMissing = 3,
+        ExpressionParseFailure = 4,
+        SkyframeStateWithCommandLineExpression = 5,
+        InvalidAqueryExpression = 6,
+        SkyframeStatePrereqUnmet = 7,
+        AqueryOutputTooBig = 8,
+        IllegalPatternSyntax = 9,
+        IncorrectArguments = 10,
+        TopLevelTargetsWithSkyframeStateNotSupported = 11,
+        SkyframeStateAfterExecution = 12,
+        LabelsFunctionNotSupported = 13,
+        TemplateExpansionFailure = 14,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::ActionQueryUnknown => "ACTION_QUERY_UNKNOWN",
+                Self::CommandLineExpansionFailure => "COMMAND_LINE_EXPANSION_FAILURE",
+                Self::OutputFailure => "OUTPUT_FAILURE",
+                Self::CommandLineExpressionMissing => "COMMAND_LINE_EXPRESSION_MISSING",
+                Self::ExpressionParseFailure => "EXPRESSION_PARSE_FAILURE",
+                Self::SkyframeStateWithCommandLineExpression => {
+                    "SKYFRAME_STATE_WITH_COMMAND_LINE_EXPRESSION"
+                }
+                Self::InvalidAqueryExpression => "INVALID_AQUERY_EXPRESSION",
+                Self::SkyframeStatePrereqUnmet => "SKYFRAME_STATE_PREREQ_UNMET",
+                Self::AqueryOutputTooBig => "AQUERY_OUTPUT_TOO_BIG",
+                Self::IllegalPatternSyntax => "ILLEGAL_PATTERN_SYNTAX",
+                Self::IncorrectArguments => "INCORRECT_ARGUMENTS",
+                Self::TopLevelTargetsWithSkyframeStateNotSupported => {
+                    "TOP_LEVEL_TARGETS_WITH_SKYFRAME_STATE_NOT_SUPPORTED"
+                }
+                Self::SkyframeStateAfterExecution => "SKYFRAME_STATE_AFTER_EXECUTION",
+                Self::LabelsFunctionNotSupported => "LABELS_FUNCTION_NOT_SUPPORTED",
+                Self::TemplateExpansionFailure => "TEMPLATE_EXPANSION_FAILURE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "ACTION_QUERY_UNKNOWN" => Some(Self::ActionQueryUnknown),
+                "COMMAND_LINE_EXPANSION_FAILURE" => {
+                    Some(Self::CommandLineExpansionFailure)
+                }
+                "OUTPUT_FAILURE" => Some(Self::OutputFailure),
+                "COMMAND_LINE_EXPRESSION_MISSING" => {
+                    Some(Self::CommandLineExpressionMissing)
+                }
+                "EXPRESSION_PARSE_FAILURE" => Some(Self::ExpressionParseFailure),
+                "SKYFRAME_STATE_WITH_COMMAND_LINE_EXPRESSION" => {
+                    Some(Self::SkyframeStateWithCommandLineExpression)
+                }
+                "INVALID_AQUERY_EXPRESSION" => Some(Self::InvalidAqueryExpression),
+                "SKYFRAME_STATE_PREREQ_UNMET" => Some(Self::SkyframeStatePrereqUnmet),
+                "AQUERY_OUTPUT_TOO_BIG" => Some(Self::AqueryOutputTooBig),
+                "ILLEGAL_PATTERN_SYNTAX" => Some(Self::IllegalPatternSyntax),
+                "INCORRECT_ARGUMENTS" => Some(Self::IncorrectArguments),
+                "TOP_LEVEL_TARGETS_WITH_SKYFRAME_STATE_NOT_SUPPORTED" => {
+                    Some(Self::TopLevelTargetsWithSkyframeStateNotSupported)
+                }
+                "SKYFRAME_STATE_AFTER_EXECUTION" => {
+                    Some(Self::SkyframeStateAfterExecution)
+                }
+                "LABELS_FUNCTION_NOT_SUPPORTED" => Some(Self::LabelsFunctionNotSupported),
+                "TEMPLATE_EXPANSION_FAILURE" => Some(Self::TemplateExpansionFailure),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct TargetPatterns {
+    #[prost(enumeration = "target_patterns::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `TargetPatterns`.
+pub mod target_patterns {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        TargetPatternsUnknown = 0,
+        TargetPatternFileWithCommandLinePattern = 1,
+        TargetPatternFileReadFailure = 2,
+        TargetPatternParseFailure = 3,
+        PackageNotFound = 4,
+        TargetFormatInvalid = 5,
+        AbsoluteTargetPatternInvalid = 6,
+        CannotDetermineTargetFromFilename = 7,
+        LabelSyntaxError = 8,
+        TargetCannotBeEmptyString = 9,
+        PackagePartCannotEndInSlash = 10,
+        Cycle = 11,
+        CannotPreloadTarget = 12,
+        TargetsMissing = 13,
+        RecursiveTargetPatternsNotAllowed = 14,
+        UpLevelReferencesNotAllowed = 15,
+        NegativeTargetPatternNotAllowed = 16,
+        TargetMustBeAFile = 17,
+        DependencyNotFound = 18,
+        PackageNameInvalid = 19,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::TargetPatternsUnknown => "TARGET_PATTERNS_UNKNOWN",
+                Self::TargetPatternFileWithCommandLinePattern => {
+                    "TARGET_PATTERN_FILE_WITH_COMMAND_LINE_PATTERN"
+                }
+                Self::TargetPatternFileReadFailure => "TARGET_PATTERN_FILE_READ_FAILURE",
+                Self::TargetPatternParseFailure => "TARGET_PATTERN_PARSE_FAILURE",
+                Self::PackageNotFound => "PACKAGE_NOT_FOUND",
+                Self::TargetFormatInvalid => "TARGET_FORMAT_INVALID",
+                Self::AbsoluteTargetPatternInvalid => "ABSOLUTE_TARGET_PATTERN_INVALID",
+                Self::CannotDetermineTargetFromFilename => {
+                    "CANNOT_DETERMINE_TARGET_FROM_FILENAME"
+                }
+                Self::LabelSyntaxError => "LABEL_SYNTAX_ERROR",
+                Self::TargetCannotBeEmptyString => "TARGET_CANNOT_BE_EMPTY_STRING",
+                Self::PackagePartCannotEndInSlash => "PACKAGE_PART_CANNOT_END_IN_SLASH",
+                Self::Cycle => "CYCLE",
+                Self::CannotPreloadTarget => "CANNOT_PRELOAD_TARGET",
+                Self::TargetsMissing => "TARGETS_MISSING",
+                Self::RecursiveTargetPatternsNotAllowed => {
+                    "RECURSIVE_TARGET_PATTERNS_NOT_ALLOWED"
+                }
+                Self::UpLevelReferencesNotAllowed => "UP_LEVEL_REFERENCES_NOT_ALLOWED",
+                Self::NegativeTargetPatternNotAllowed => {
+                    "NEGATIVE_TARGET_PATTERN_NOT_ALLOWED"
+                }
+                Self::TargetMustBeAFile => "TARGET_MUST_BE_A_FILE",
+                Self::DependencyNotFound => "DEPENDENCY_NOT_FOUND",
+                Self::PackageNameInvalid => "PACKAGE_NAME_INVALID",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "TARGET_PATTERNS_UNKNOWN" => Some(Self::TargetPatternsUnknown),
+                "TARGET_PATTERN_FILE_WITH_COMMAND_LINE_PATTERN" => {
+                    Some(Self::TargetPatternFileWithCommandLinePattern)
+                }
+                "TARGET_PATTERN_FILE_READ_FAILURE" => {
+                    Some(Self::TargetPatternFileReadFailure)
+                }
+                "TARGET_PATTERN_PARSE_FAILURE" => Some(Self::TargetPatternParseFailure),
+                "PACKAGE_NOT_FOUND" => Some(Self::PackageNotFound),
+                "TARGET_FORMAT_INVALID" => Some(Self::TargetFormatInvalid),
+                "ABSOLUTE_TARGET_PATTERN_INVALID" => {
+                    Some(Self::AbsoluteTargetPatternInvalid)
+                }
+                "CANNOT_DETERMINE_TARGET_FROM_FILENAME" => {
+                    Some(Self::CannotDetermineTargetFromFilename)
+                }
+                "LABEL_SYNTAX_ERROR" => Some(Self::LabelSyntaxError),
+                "TARGET_CANNOT_BE_EMPTY_STRING" => Some(Self::TargetCannotBeEmptyString),
+                "PACKAGE_PART_CANNOT_END_IN_SLASH" => {
+                    Some(Self::PackagePartCannotEndInSlash)
+                }
+                "CYCLE" => Some(Self::Cycle),
+                "CANNOT_PRELOAD_TARGET" => Some(Self::CannotPreloadTarget),
+                "TARGETS_MISSING" => Some(Self::TargetsMissing),
+                "RECURSIVE_TARGET_PATTERNS_NOT_ALLOWED" => {
+                    Some(Self::RecursiveTargetPatternsNotAllowed)
+                }
+                "UP_LEVEL_REFERENCES_NOT_ALLOWED" => {
+                    Some(Self::UpLevelReferencesNotAllowed)
+                }
+                "NEGATIVE_TARGET_PATTERN_NOT_ALLOWED" => {
+                    Some(Self::NegativeTargetPatternNotAllowed)
+                }
+                "TARGET_MUST_BE_A_FILE" => Some(Self::TargetMustBeAFile),
+                "DEPENDENCY_NOT_FOUND" => Some(Self::DependencyNotFound),
+                "PACKAGE_NAME_INVALID" => Some(Self::PackageNameInvalid),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct CleanCommand {
+    #[prost(enumeration = "clean_command::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `CleanCommand`.
+pub mod clean_command {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        CleanCommandUnknown = 0,
+        OutputServiceCleanFailure = 1,
+        ActionCacheCleanFailure = 2,
+        OutErrCloseFailure = 3,
+        OutputBaseDeleteFailure = 4,
+        OutputBaseTempMoveFailure = 5,
+        AsyncOutputBaseDeleteFailure = 6,
+        ExecrootDeleteFailure = 7,
+        ExecrootTempMoveFailure = 8,
+        AsyncExecrootDeleteFailure = 9,
+        ArgumentsNotRecognized = 10,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::CleanCommandUnknown => "CLEAN_COMMAND_UNKNOWN",
+                Self::OutputServiceCleanFailure => "OUTPUT_SERVICE_CLEAN_FAILURE",
+                Self::ActionCacheCleanFailure => "ACTION_CACHE_CLEAN_FAILURE",
+                Self::OutErrCloseFailure => "OUT_ERR_CLOSE_FAILURE",
+                Self::OutputBaseDeleteFailure => "OUTPUT_BASE_DELETE_FAILURE",
+                Self::OutputBaseTempMoveFailure => "OUTPUT_BASE_TEMP_MOVE_FAILURE",
+                Self::AsyncOutputBaseDeleteFailure => "ASYNC_OUTPUT_BASE_DELETE_FAILURE",
+                Self::ExecrootDeleteFailure => "EXECROOT_DELETE_FAILURE",
+                Self::ExecrootTempMoveFailure => "EXECROOT_TEMP_MOVE_FAILURE",
+                Self::AsyncExecrootDeleteFailure => "ASYNC_EXECROOT_DELETE_FAILURE",
+                Self::ArgumentsNotRecognized => "ARGUMENTS_NOT_RECOGNIZED",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "CLEAN_COMMAND_UNKNOWN" => Some(Self::CleanCommandUnknown),
+                "OUTPUT_SERVICE_CLEAN_FAILURE" => Some(Self::OutputServiceCleanFailure),
+                "ACTION_CACHE_CLEAN_FAILURE" => Some(Self::ActionCacheCleanFailure),
+                "OUT_ERR_CLOSE_FAILURE" => Some(Self::OutErrCloseFailure),
+                "OUTPUT_BASE_DELETE_FAILURE" => Some(Self::OutputBaseDeleteFailure),
+                "OUTPUT_BASE_TEMP_MOVE_FAILURE" => Some(Self::OutputBaseTempMoveFailure),
+                "ASYNC_OUTPUT_BASE_DELETE_FAILURE" => {
+                    Some(Self::AsyncOutputBaseDeleteFailure)
+                }
+                "EXECROOT_DELETE_FAILURE" => Some(Self::ExecrootDeleteFailure),
+                "EXECROOT_TEMP_MOVE_FAILURE" => Some(Self::ExecrootTempMoveFailure),
+                "ASYNC_EXECROOT_DELETE_FAILURE" => Some(Self::AsyncExecrootDeleteFailure),
+                "ARGUMENTS_NOT_RECOGNIZED" => Some(Self::ArgumentsNotRecognized),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct ConfigCommand {
+    #[prost(enumeration = "config_command::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `ConfigCommand`.
+pub mod config_command {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        ConfigCommandUnknown = 0,
+        TooManyConfigIds = 1,
+        ConfigurationNotFound = 2,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::ConfigCommandUnknown => "CONFIG_COMMAND_UNKNOWN",
+                Self::TooManyConfigIds => "TOO_MANY_CONFIG_IDS",
+                Self::ConfigurationNotFound => "CONFIGURATION_NOT_FOUND",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "CONFIG_COMMAND_UNKNOWN" => Some(Self::ConfigCommandUnknown),
+                "TOO_MANY_CONFIG_IDS" => Some(Self::TooManyConfigIds),
+                "CONFIGURATION_NOT_FOUND" => Some(Self::ConfigurationNotFound),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct ConfigurableQuery {
+    #[prost(enumeration = "configurable_query::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `ConfigurableQuery`.
+pub mod configurable_query {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        ConfigurableQueryUnknown = 0,
+        CommandLineExpressionMissing = 1,
+        ExpressionParseFailure = 2,
+        FiltersNotSupported = 3,
+        BuildfilesFunctionNotSupported = 4,
+        SiblingsFunctionNotSupported = 5,
+        VisibleFunctionNotSupported = 6,
+        AttributeMissing = 7,
+        IncorrectConfigArgumentError = 8,
+        TargetMissing = 9,
+        StarlarkSyntaxError = 10,
+        StarlarkEvalError = 11,
+        /// Indicates failure to correctly define a format function
+        FormatFunctionError = 12,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::ConfigurableQueryUnknown => "CONFIGURABLE_QUERY_UNKNOWN",
+                Self::CommandLineExpressionMissing => "COMMAND_LINE_EXPRESSION_MISSING",
+                Self::ExpressionParseFailure => "EXPRESSION_PARSE_FAILURE",
+                Self::FiltersNotSupported => "FILTERS_NOT_SUPPORTED",
+                Self::BuildfilesFunctionNotSupported => {
+                    "BUILDFILES_FUNCTION_NOT_SUPPORTED"
+                }
+                Self::SiblingsFunctionNotSupported => "SIBLINGS_FUNCTION_NOT_SUPPORTED",
+                Self::VisibleFunctionNotSupported => "VISIBLE_FUNCTION_NOT_SUPPORTED",
+                Self::AttributeMissing => "ATTRIBUTE_MISSING",
+                Self::IncorrectConfigArgumentError => "INCORRECT_CONFIG_ARGUMENT_ERROR",
+                Self::TargetMissing => "TARGET_MISSING",
+                Self::StarlarkSyntaxError => "STARLARK_SYNTAX_ERROR",
+                Self::StarlarkEvalError => "STARLARK_EVAL_ERROR",
+                Self::FormatFunctionError => "FORMAT_FUNCTION_ERROR",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "CONFIGURABLE_QUERY_UNKNOWN" => Some(Self::ConfigurableQueryUnknown),
+                "COMMAND_LINE_EXPRESSION_MISSING" => {
+                    Some(Self::CommandLineExpressionMissing)
+                }
+                "EXPRESSION_PARSE_FAILURE" => Some(Self::ExpressionParseFailure),
+                "FILTERS_NOT_SUPPORTED" => Some(Self::FiltersNotSupported),
+                "BUILDFILES_FUNCTION_NOT_SUPPORTED" => {
+                    Some(Self::BuildfilesFunctionNotSupported)
+                }
+                "SIBLINGS_FUNCTION_NOT_SUPPORTED" => {
+                    Some(Self::SiblingsFunctionNotSupported)
+                }
+                "VISIBLE_FUNCTION_NOT_SUPPORTED" => {
+                    Some(Self::VisibleFunctionNotSupported)
+                }
+                "ATTRIBUTE_MISSING" => Some(Self::AttributeMissing),
+                "INCORRECT_CONFIG_ARGUMENT_ERROR" => {
+                    Some(Self::IncorrectConfigArgumentError)
+                }
+                "TARGET_MISSING" => Some(Self::TargetMissing),
+                "STARLARK_SYNTAX_ERROR" => Some(Self::StarlarkSyntaxError),
+                "STARLARK_EVAL_ERROR" => Some(Self::StarlarkEvalError),
+                "FORMAT_FUNCTION_ERROR" => Some(Self::FormatFunctionError),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct DumpCommand {
+    #[prost(enumeration = "dump_command::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `DumpCommand`.
+pub mod dump_command {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        DumpCommandUnknown = 0,
+        NoOutputSpecified = 1,
+        ActionCacheDumpFailed = 2,
+        CommandLineExpansionFailure = 3,
+        ActionGraphDumpFailed = 4,
+        StarlarkHeapDumpFailed = 5,
+        SkyframeMemoryDumpFailed = 7,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::DumpCommandUnknown => "DUMP_COMMAND_UNKNOWN",
+                Self::NoOutputSpecified => "NO_OUTPUT_SPECIFIED",
+                Self::ActionCacheDumpFailed => "ACTION_CACHE_DUMP_FAILED",
+                Self::CommandLineExpansionFailure => "COMMAND_LINE_EXPANSION_FAILURE",
+                Self::ActionGraphDumpFailed => "ACTION_GRAPH_DUMP_FAILED",
+                Self::StarlarkHeapDumpFailed => "STARLARK_HEAP_DUMP_FAILED",
+                Self::SkyframeMemoryDumpFailed => "SKYFRAME_MEMORY_DUMP_FAILED",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "DUMP_COMMAND_UNKNOWN" => Some(Self::DumpCommandUnknown),
+                "NO_OUTPUT_SPECIFIED" => Some(Self::NoOutputSpecified),
+                "ACTION_CACHE_DUMP_FAILED" => Some(Self::ActionCacheDumpFailed),
+                "COMMAND_LINE_EXPANSION_FAILURE" => {
+                    Some(Self::CommandLineExpansionFailure)
+                }
+                "ACTION_GRAPH_DUMP_FAILED" => Some(Self::ActionGraphDumpFailed),
+                "STARLARK_HEAP_DUMP_FAILED" => Some(Self::StarlarkHeapDumpFailed),
+                "SKYFRAME_MEMORY_DUMP_FAILED" => Some(Self::SkyframeMemoryDumpFailed),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct HelpCommand {
+    #[prost(enumeration = "help_command::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `HelpCommand`.
+pub mod help_command {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        HelpCommandUnknown = 0,
+        MissingArgument = 1,
+        CommandNotFound = 2,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::HelpCommandUnknown => "HELP_COMMAND_UNKNOWN",
+                Self::MissingArgument => "MISSING_ARGUMENT",
+                Self::CommandNotFound => "COMMAND_NOT_FOUND",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "HELP_COMMAND_UNKNOWN" => Some(Self::HelpCommandUnknown),
+                "MISSING_ARGUMENT" => Some(Self::MissingArgument),
+                "COMMAND_NOT_FOUND" => Some(Self::CommandNotFound),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct MobileInstall {
+    #[prost(enumeration = "mobile_install::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `MobileInstall`.
+pub mod mobile_install {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        MobileInstallUnknown = 0,
+        ClassicUnsupported = 1,
+        NoTargetSpecified = 2,
+        MultipleTargetsSpecified = 3,
+        TargetTypeInvalid = 4,
+        NonZeroExit = 5,
+        ErrorRunningProgram = 6,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::MobileInstallUnknown => "MOBILE_INSTALL_UNKNOWN",
+                Self::ClassicUnsupported => "CLASSIC_UNSUPPORTED",
+                Self::NoTargetSpecified => "NO_TARGET_SPECIFIED",
+                Self::MultipleTargetsSpecified => "MULTIPLE_TARGETS_SPECIFIED",
+                Self::TargetTypeInvalid => "TARGET_TYPE_INVALID",
+                Self::NonZeroExit => "NON_ZERO_EXIT",
+                Self::ErrorRunningProgram => "ERROR_RUNNING_PROGRAM",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "MOBILE_INSTALL_UNKNOWN" => Some(Self::MobileInstallUnknown),
+                "CLASSIC_UNSUPPORTED" => Some(Self::ClassicUnsupported),
+                "NO_TARGET_SPECIFIED" => Some(Self::NoTargetSpecified),
+                "MULTIPLE_TARGETS_SPECIFIED" => Some(Self::MultipleTargetsSpecified),
+                "TARGET_TYPE_INVALID" => Some(Self::TargetTypeInvalid),
+                "NON_ZERO_EXIT" => Some(Self::NonZeroExit),
+                "ERROR_RUNNING_PROGRAM" => Some(Self::ErrorRunningProgram),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct ProfileCommand {
+    #[prost(enumeration = "profile_command::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `ProfileCommand`.
+pub mod profile_command {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        ProfileCommandUnknown = 0,
+        OldBinaryFormatUnsupported = 1,
+        FileReadFailure = 2,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::ProfileCommandUnknown => "PROFILE_COMMAND_UNKNOWN",
+                Self::OldBinaryFormatUnsupported => "OLD_BINARY_FORMAT_UNSUPPORTED",
+                Self::FileReadFailure => "FILE_READ_FAILURE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "PROFILE_COMMAND_UNKNOWN" => Some(Self::ProfileCommandUnknown),
+                "OLD_BINARY_FORMAT_UNSUPPORTED" => Some(Self::OldBinaryFormatUnsupported),
+                "FILE_READ_FAILURE" => Some(Self::FileReadFailure),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct RunCommand {
+    #[prost(enumeration = "run_command::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `RunCommand`.
+pub mod run_command {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        RunCommandUnknown = 0,
+        NoTargetSpecified = 1,
+        TooManyTargetsSpecified = 2,
+        TargetNotExecutable = 3,
+        TargetBuiltButPathNotExecutable = 4,
+        TargetBuiltButPathValidationFailed = 5,
+        RunUnderTargetNotBuilt = 6,
+        RunPrereqUnmet = 7,
+        TooManyTestShardsOrRuns = 8,
+        TestEnvironmentSetupFailure = 9,
+        CommandLineExpansionFailure = 10,
+        NoShellSpecified = 11,
+        ScriptWriteFailure = 12,
+        RunfilesDirectoriesCreationFailure = 13,
+        RunfilesSymlinksCreationFailure = 14,
+        TestEnvironmentSetupInterrupted = 15,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::RunCommandUnknown => "RUN_COMMAND_UNKNOWN",
+                Self::NoTargetSpecified => "NO_TARGET_SPECIFIED",
+                Self::TooManyTargetsSpecified => "TOO_MANY_TARGETS_SPECIFIED",
+                Self::TargetNotExecutable => "TARGET_NOT_EXECUTABLE",
+                Self::TargetBuiltButPathNotExecutable => {
+                    "TARGET_BUILT_BUT_PATH_NOT_EXECUTABLE"
+                }
+                Self::TargetBuiltButPathValidationFailed => {
+                    "TARGET_BUILT_BUT_PATH_VALIDATION_FAILED"
+                }
+                Self::RunUnderTargetNotBuilt => "RUN_UNDER_TARGET_NOT_BUILT",
+                Self::RunPrereqUnmet => "RUN_PREREQ_UNMET",
+                Self::TooManyTestShardsOrRuns => "TOO_MANY_TEST_SHARDS_OR_RUNS",
+                Self::TestEnvironmentSetupFailure => "TEST_ENVIRONMENT_SETUP_FAILURE",
+                Self::CommandLineExpansionFailure => "COMMAND_LINE_EXPANSION_FAILURE",
+                Self::NoShellSpecified => "NO_SHELL_SPECIFIED",
+                Self::ScriptWriteFailure => "SCRIPT_WRITE_FAILURE",
+                Self::RunfilesDirectoriesCreationFailure => {
+                    "RUNFILES_DIRECTORIES_CREATION_FAILURE"
+                }
+                Self::RunfilesSymlinksCreationFailure => {
+                    "RUNFILES_SYMLINKS_CREATION_FAILURE"
+                }
+                Self::TestEnvironmentSetupInterrupted => {
+                    "TEST_ENVIRONMENT_SETUP_INTERRUPTED"
+                }
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "RUN_COMMAND_UNKNOWN" => Some(Self::RunCommandUnknown),
+                "NO_TARGET_SPECIFIED" => Some(Self::NoTargetSpecified),
+                "TOO_MANY_TARGETS_SPECIFIED" => Some(Self::TooManyTargetsSpecified),
+                "TARGET_NOT_EXECUTABLE" => Some(Self::TargetNotExecutable),
+                "TARGET_BUILT_BUT_PATH_NOT_EXECUTABLE" => {
+                    Some(Self::TargetBuiltButPathNotExecutable)
+                }
+                "TARGET_BUILT_BUT_PATH_VALIDATION_FAILED" => {
+                    Some(Self::TargetBuiltButPathValidationFailed)
+                }
+                "RUN_UNDER_TARGET_NOT_BUILT" => Some(Self::RunUnderTargetNotBuilt),
+                "RUN_PREREQ_UNMET" => Some(Self::RunPrereqUnmet),
+                "TOO_MANY_TEST_SHARDS_OR_RUNS" => Some(Self::TooManyTestShardsOrRuns),
+                "TEST_ENVIRONMENT_SETUP_FAILURE" => {
+                    Some(Self::TestEnvironmentSetupFailure)
+                }
+                "COMMAND_LINE_EXPANSION_FAILURE" => {
+                    Some(Self::CommandLineExpansionFailure)
+                }
+                "NO_SHELL_SPECIFIED" => Some(Self::NoShellSpecified),
+                "SCRIPT_WRITE_FAILURE" => Some(Self::ScriptWriteFailure),
+                "RUNFILES_DIRECTORIES_CREATION_FAILURE" => {
+                    Some(Self::RunfilesDirectoriesCreationFailure)
+                }
+                "RUNFILES_SYMLINKS_CREATION_FAILURE" => {
+                    Some(Self::RunfilesSymlinksCreationFailure)
+                }
+                "TEST_ENVIRONMENT_SETUP_INTERRUPTED" => {
+                    Some(Self::TestEnvironmentSetupInterrupted)
+                }
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct VersionCommand {
+    #[prost(enumeration = "version_command::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `VersionCommand`.
+pub mod version_command {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        VersionCommandUnknown = 0,
+        NotAvailable = 1,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::VersionCommandUnknown => "VERSION_COMMAND_UNKNOWN",
+                Self::NotAvailable => "NOT_AVAILABLE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "VERSION_COMMAND_UNKNOWN" => Some(Self::VersionCommandUnknown),
+                "NOT_AVAILABLE" => Some(Self::NotAvailable),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct PrintActionCommand {
+    #[prost(enumeration = "print_action_command::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `PrintActionCommand`.
+pub mod print_action_command {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        PrintActionCommandUnknown = 0,
+        TargetNotFound = 1,
+        CommandLineExpansionFailure = 2,
+        TargetKindUnsupported = 3,
+        ActionsNotFound = 4,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::PrintActionCommandUnknown => "PRINT_ACTION_COMMAND_UNKNOWN",
+                Self::TargetNotFound => "TARGET_NOT_FOUND",
+                Self::CommandLineExpansionFailure => "COMMAND_LINE_EXPANSION_FAILURE",
+                Self::TargetKindUnsupported => "TARGET_KIND_UNSUPPORTED",
+                Self::ActionsNotFound => "ACTIONS_NOT_FOUND",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "PRINT_ACTION_COMMAND_UNKNOWN" => Some(Self::PrintActionCommandUnknown),
+                "TARGET_NOT_FOUND" => Some(Self::TargetNotFound),
+                "COMMAND_LINE_EXPANSION_FAILURE" => {
+                    Some(Self::CommandLineExpansionFailure)
+                }
+                "TARGET_KIND_UNSUPPORTED" => Some(Self::TargetKindUnsupported),
+                "ACTIONS_NOT_FOUND" => Some(Self::ActionsNotFound),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct WorkspaceStatus {
+    #[prost(enumeration = "workspace_status::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `WorkspaceStatus`.
+pub mod workspace_status {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        WorkspaceStatusUnknown = 0,
+        NonZeroExit = 1,
+        AbnormalTermination = 2,
+        ExecFailed = 3,
+        ParseFailure = 4,
+        ValidationFailure = 5,
+        ContentUpdateIoException = 6,
+        StderrIoException = 7,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::WorkspaceStatusUnknown => "WORKSPACE_STATUS_UNKNOWN",
+                Self::NonZeroExit => "NON_ZERO_EXIT",
+                Self::AbnormalTermination => "ABNORMAL_TERMINATION",
+                Self::ExecFailed => "EXEC_FAILED",
+                Self::ParseFailure => "PARSE_FAILURE",
+                Self::ValidationFailure => "VALIDATION_FAILURE",
+                Self::ContentUpdateIoException => "CONTENT_UPDATE_IO_EXCEPTION",
+                Self::StderrIoException => "STDERR_IO_EXCEPTION",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "WORKSPACE_STATUS_UNKNOWN" => Some(Self::WorkspaceStatusUnknown),
+                "NON_ZERO_EXIT" => Some(Self::NonZeroExit),
+                "ABNORMAL_TERMINATION" => Some(Self::AbnormalTermination),
+                "EXEC_FAILED" => Some(Self::ExecFailed),
+                "PARSE_FAILURE" => Some(Self::ParseFailure),
+                "VALIDATION_FAILURE" => Some(Self::ValidationFailure),
+                "CONTENT_UPDATE_IO_EXCEPTION" => Some(Self::ContentUpdateIoException),
+                "STDERR_IO_EXCEPTION" => Some(Self::StderrIoException),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct JavaCompile {
+    #[prost(enumeration = "java_compile::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `JavaCompile`.
+pub mod java_compile {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        JavaCompileUnknown = 0,
+        ReducedClasspathFailure = 1,
+        CommandLineExpansionFailure = 2,
+        JdepsReadIoException = 3,
+        ReducedClasspathFallbackCleanupFailure = 4,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::JavaCompileUnknown => "JAVA_COMPILE_UNKNOWN",
+                Self::ReducedClasspathFailure => "REDUCED_CLASSPATH_FAILURE",
+                Self::CommandLineExpansionFailure => "COMMAND_LINE_EXPANSION_FAILURE",
+                Self::JdepsReadIoException => "JDEPS_READ_IO_EXCEPTION",
+                Self::ReducedClasspathFallbackCleanupFailure => {
+                    "REDUCED_CLASSPATH_FALLBACK_CLEANUP_FAILURE"
+                }
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "JAVA_COMPILE_UNKNOWN" => Some(Self::JavaCompileUnknown),
+                "REDUCED_CLASSPATH_FAILURE" => Some(Self::ReducedClasspathFailure),
+                "COMMAND_LINE_EXPANSION_FAILURE" => {
+                    Some(Self::CommandLineExpansionFailure)
+                }
+                "JDEPS_READ_IO_EXCEPTION" => Some(Self::JdepsReadIoException),
+                "REDUCED_CLASSPATH_FALLBACK_CLEANUP_FAILURE" => {
+                    Some(Self::ReducedClasspathFallbackCleanupFailure)
+                }
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct ActionRewinding {
+    #[prost(enumeration = "action_rewinding::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `ActionRewinding`.
+pub mod action_rewinding {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        ActionRewindingUnknown = 0,
+        LostInputTooManyTimes = 1,
+        RewindLostInputsPrereqUnmet = 3,
+        LostOutputTooManyTimes = 4,
+        LostInputRewindingDisabled = 5,
+        LostOutputRewindingDisabled = 6,
+        /// Deprecated: attempting to rewind a source artifact is now a hard crash.
+        DeprecatedLostInputIsSource = 2,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::ActionRewindingUnknown => "ACTION_REWINDING_UNKNOWN",
+                Self::LostInputTooManyTimes => "LOST_INPUT_TOO_MANY_TIMES",
+                Self::RewindLostInputsPrereqUnmet => "REWIND_LOST_INPUTS_PREREQ_UNMET",
+                Self::LostOutputTooManyTimes => "LOST_OUTPUT_TOO_MANY_TIMES",
+                Self::LostInputRewindingDisabled => "LOST_INPUT_REWINDING_DISABLED",
+                Self::LostOutputRewindingDisabled => "LOST_OUTPUT_REWINDING_DISABLED",
+                Self::DeprecatedLostInputIsSource => "DEPRECATED_LOST_INPUT_IS_SOURCE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "ACTION_REWINDING_UNKNOWN" => Some(Self::ActionRewindingUnknown),
+                "LOST_INPUT_TOO_MANY_TIMES" => Some(Self::LostInputTooManyTimes),
+                "REWIND_LOST_INPUTS_PREREQ_UNMET" => {
+                    Some(Self::RewindLostInputsPrereqUnmet)
+                }
+                "LOST_OUTPUT_TOO_MANY_TIMES" => Some(Self::LostOutputTooManyTimes),
+                "LOST_INPUT_REWINDING_DISABLED" => Some(Self::LostInputRewindingDisabled),
+                "LOST_OUTPUT_REWINDING_DISABLED" => {
+                    Some(Self::LostOutputRewindingDisabled)
+                }
+                "DEPRECATED_LOST_INPUT_IS_SOURCE" => {
+                    Some(Self::DeprecatedLostInputIsSource)
+                }
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct CppCompile {
+    #[prost(enumeration = "cpp_compile::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `CppCompile`.
+pub mod cpp_compile {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        CppCompileUnknown = 0,
+        FindUsedHeadersIoException = 1,
+        CopyOutErrFailure = 2,
+        DFileReadFailure = 3,
+        CommandGenerationFailure = 4,
+        ModuleExpansionTimeout = 5,
+        IncludePathOutsideExecRoot = 6,
+        FakeCommandGenerationFailure = 7,
+        UndeclaredInclusions = 8,
+        DFileParseFailure = 9,
+        CoverageNotesCreationFailure = 10,
+        ModuleExpansionMissingData = 11,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::CppCompileUnknown => "CPP_COMPILE_UNKNOWN",
+                Self::FindUsedHeadersIoException => "FIND_USED_HEADERS_IO_EXCEPTION",
+                Self::CopyOutErrFailure => "COPY_OUT_ERR_FAILURE",
+                Self::DFileReadFailure => "D_FILE_READ_FAILURE",
+                Self::CommandGenerationFailure => "COMMAND_GENERATION_FAILURE",
+                Self::ModuleExpansionTimeout => "MODULE_EXPANSION_TIMEOUT",
+                Self::IncludePathOutsideExecRoot => "INCLUDE_PATH_OUTSIDE_EXEC_ROOT",
+                Self::FakeCommandGenerationFailure => "FAKE_COMMAND_GENERATION_FAILURE",
+                Self::UndeclaredInclusions => "UNDECLARED_INCLUSIONS",
+                Self::DFileParseFailure => "D_FILE_PARSE_FAILURE",
+                Self::CoverageNotesCreationFailure => "COVERAGE_NOTES_CREATION_FAILURE",
+                Self::ModuleExpansionMissingData => "MODULE_EXPANSION_MISSING_DATA",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "CPP_COMPILE_UNKNOWN" => Some(Self::CppCompileUnknown),
+                "FIND_USED_HEADERS_IO_EXCEPTION" => {
+                    Some(Self::FindUsedHeadersIoException)
+                }
+                "COPY_OUT_ERR_FAILURE" => Some(Self::CopyOutErrFailure),
+                "D_FILE_READ_FAILURE" => Some(Self::DFileReadFailure),
+                "COMMAND_GENERATION_FAILURE" => Some(Self::CommandGenerationFailure),
+                "MODULE_EXPANSION_TIMEOUT" => Some(Self::ModuleExpansionTimeout),
+                "INCLUDE_PATH_OUTSIDE_EXEC_ROOT" => {
+                    Some(Self::IncludePathOutsideExecRoot)
+                }
+                "FAKE_COMMAND_GENERATION_FAILURE" => {
+                    Some(Self::FakeCommandGenerationFailure)
+                }
+                "UNDECLARED_INCLUSIONS" => Some(Self::UndeclaredInclusions),
+                "D_FILE_PARSE_FAILURE" => Some(Self::DFileParseFailure),
+                "COVERAGE_NOTES_CREATION_FAILURE" => {
+                    Some(Self::CoverageNotesCreationFailure)
+                }
+                "MODULE_EXPANSION_MISSING_DATA" => Some(Self::ModuleExpansionMissingData),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct StarlarkAction {
+    #[prost(enumeration = "starlark_action::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `StarlarkAction`.
+pub mod starlark_action {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        StarlarkActionUnknown = 0,
+        UnusedInputListReadFailure = 1,
+        UnusedInputListFileNotFound = 2,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::StarlarkActionUnknown => "STARLARK_ACTION_UNKNOWN",
+                Self::UnusedInputListReadFailure => "UNUSED_INPUT_LIST_READ_FAILURE",
+                Self::UnusedInputListFileNotFound => "UNUSED_INPUT_LIST_FILE_NOT_FOUND",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "STARLARK_ACTION_UNKNOWN" => Some(Self::StarlarkActionUnknown),
+                "UNUSED_INPUT_LIST_READ_FAILURE" => {
+                    Some(Self::UnusedInputListReadFailure)
+                }
+                "UNUSED_INPUT_LIST_FILE_NOT_FOUND" => {
+                    Some(Self::UnusedInputListFileNotFound)
+                }
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct NinjaAction {
+    #[prost(enumeration = "ninja_action::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `NinjaAction`.
+pub mod ninja_action {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        NinjaActionUnknown = 0,
+        InvalidDepfileDeclaredDependency = 1,
+        DFileParseFailure = 2,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::NinjaActionUnknown => "NINJA_ACTION_UNKNOWN",
+                Self::InvalidDepfileDeclaredDependency => {
+                    "INVALID_DEPFILE_DECLARED_DEPENDENCY"
+                }
+                Self::DFileParseFailure => "D_FILE_PARSE_FAILURE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "NINJA_ACTION_UNKNOWN" => Some(Self::NinjaActionUnknown),
+                "INVALID_DEPFILE_DECLARED_DEPENDENCY" => {
+                    Some(Self::InvalidDepfileDeclaredDependency)
+                }
+                "D_FILE_PARSE_FAILURE" => Some(Self::DFileParseFailure),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct DynamicExecution {
+    #[prost(enumeration = "dynamic_execution::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `DynamicExecution`.
+pub mod dynamic_execution {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        DynamicExecutionUnknown = 0,
+        XcodeRelatedPrereqUnmet = 1,
+        ActionLogMoveFailure = 2,
+        RunFailure = 3,
+        NoUsableStrategyFound = 4,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::DynamicExecutionUnknown => "DYNAMIC_EXECUTION_UNKNOWN",
+                Self::XcodeRelatedPrereqUnmet => "XCODE_RELATED_PREREQ_UNMET",
+                Self::ActionLogMoveFailure => "ACTION_LOG_MOVE_FAILURE",
+                Self::RunFailure => "RUN_FAILURE",
+                Self::NoUsableStrategyFound => "NO_USABLE_STRATEGY_FOUND",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "DYNAMIC_EXECUTION_UNKNOWN" => Some(Self::DynamicExecutionUnknown),
+                "XCODE_RELATED_PREREQ_UNMET" => Some(Self::XcodeRelatedPrereqUnmet),
+                "ACTION_LOG_MOVE_FAILURE" => Some(Self::ActionLogMoveFailure),
+                "RUN_FAILURE" => Some(Self::RunFailure),
+                "NO_USABLE_STRATEGY_FOUND" => Some(Self::NoUsableStrategyFound),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct FailAction {
+    #[prost(enumeration = "fail_action::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `FailAction`.
+pub mod fail_action {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        FailActionUnknown = 0,
+        IntentionalFailure = 1,
+        IncorrectPythonVersion = 2,
+        ProguardSpecsMissing = 3,
+        DynamicLinkingNotSupported = 4,
+        SourceFilesMissing = 5,
+        IncorrectToolchain = 6,
+        FragmentClassMissing = 7,
+        CantBuildIncompatibleTarget = 10,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::FailActionUnknown => "FAIL_ACTION_UNKNOWN",
+                Self::IntentionalFailure => "INTENTIONAL_FAILURE",
+                Self::IncorrectPythonVersion => "INCORRECT_PYTHON_VERSION",
+                Self::ProguardSpecsMissing => "PROGUARD_SPECS_MISSING",
+                Self::DynamicLinkingNotSupported => "DYNAMIC_LINKING_NOT_SUPPORTED",
+                Self::SourceFilesMissing => "SOURCE_FILES_MISSING",
+                Self::IncorrectToolchain => "INCORRECT_TOOLCHAIN",
+                Self::FragmentClassMissing => "FRAGMENT_CLASS_MISSING",
+                Self::CantBuildIncompatibleTarget => "CANT_BUILD_INCOMPATIBLE_TARGET",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "FAIL_ACTION_UNKNOWN" => Some(Self::FailActionUnknown),
+                "INTENTIONAL_FAILURE" => Some(Self::IntentionalFailure),
+                "INCORRECT_PYTHON_VERSION" => Some(Self::IncorrectPythonVersion),
+                "PROGUARD_SPECS_MISSING" => Some(Self::ProguardSpecsMissing),
+                "DYNAMIC_LINKING_NOT_SUPPORTED" => Some(Self::DynamicLinkingNotSupported),
+                "SOURCE_FILES_MISSING" => Some(Self::SourceFilesMissing),
+                "INCORRECT_TOOLCHAIN" => Some(Self::IncorrectToolchain),
+                "FRAGMENT_CLASS_MISSING" => Some(Self::FragmentClassMissing),
+                "CANT_BUILD_INCOMPATIBLE_TARGET" => {
+                    Some(Self::CantBuildIncompatibleTarget)
+                }
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct SymlinkAction {
+    #[prost(enumeration = "symlink_action::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `SymlinkAction`.
+pub mod symlink_action {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        SymlinkActionUnknown = 0,
+        ExecutableInputNotFile = 1,
+        ExecutableInputIsNot = 2,
+        ExecutableInputCheckIoException = 3,
+        LinkCreationIoException = 4,
+        LinkTouchIoException = 5,
+        LinkLogIoException = 6,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::SymlinkActionUnknown => "SYMLINK_ACTION_UNKNOWN",
+                Self::ExecutableInputNotFile => "EXECUTABLE_INPUT_NOT_FILE",
+                Self::ExecutableInputIsNot => "EXECUTABLE_INPUT_IS_NOT",
+                Self::ExecutableInputCheckIoException => {
+                    "EXECUTABLE_INPUT_CHECK_IO_EXCEPTION"
+                }
+                Self::LinkCreationIoException => "LINK_CREATION_IO_EXCEPTION",
+                Self::LinkTouchIoException => "LINK_TOUCH_IO_EXCEPTION",
+                Self::LinkLogIoException => "LINK_LOG_IO_EXCEPTION",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "SYMLINK_ACTION_UNKNOWN" => Some(Self::SymlinkActionUnknown),
+                "EXECUTABLE_INPUT_NOT_FILE" => Some(Self::ExecutableInputNotFile),
+                "EXECUTABLE_INPUT_IS_NOT" => Some(Self::ExecutableInputIsNot),
+                "EXECUTABLE_INPUT_CHECK_IO_EXCEPTION" => {
+                    Some(Self::ExecutableInputCheckIoException)
+                }
+                "LINK_CREATION_IO_EXCEPTION" => Some(Self::LinkCreationIoException),
+                "LINK_TOUCH_IO_EXCEPTION" => Some(Self::LinkTouchIoException),
+                "LINK_LOG_IO_EXCEPTION" => Some(Self::LinkLogIoException),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct CppLink {
+    #[prost(enumeration = "cpp_link::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `CppLink`.
+pub mod cpp_link {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        CppLinkUnknown = 0,
+        CommandGenerationFailure = 1,
+        FakeCommandGenerationFailure = 2,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::CppLinkUnknown => "CPP_LINK_UNKNOWN",
+                Self::CommandGenerationFailure => "COMMAND_GENERATION_FAILURE",
+                Self::FakeCommandGenerationFailure => "FAKE_COMMAND_GENERATION_FAILURE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "CPP_LINK_UNKNOWN" => Some(Self::CppLinkUnknown),
+                "COMMAND_GENERATION_FAILURE" => Some(Self::CommandGenerationFailure),
+                "FAKE_COMMAND_GENERATION_FAILURE" => {
+                    Some(Self::FakeCommandGenerationFailure)
+                }
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct LtoAction {
+    #[prost(enumeration = "lto_action::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `LtoAction`.
+pub mod lto_action {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        LtoActionUnknown = 0,
+        InvalidAbsolutePathInImports = 1,
+        MissingBitcodeFiles = 2,
+        ImportsReadIoException = 3,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::LtoActionUnknown => "LTO_ACTION_UNKNOWN",
+                Self::InvalidAbsolutePathInImports => "INVALID_ABSOLUTE_PATH_IN_IMPORTS",
+                Self::MissingBitcodeFiles => "MISSING_BITCODE_FILES",
+                Self::ImportsReadIoException => "IMPORTS_READ_IO_EXCEPTION",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "LTO_ACTION_UNKNOWN" => Some(Self::LtoActionUnknown),
+                "INVALID_ABSOLUTE_PATH_IN_IMPORTS" => {
+                    Some(Self::InvalidAbsolutePathInImports)
+                }
+                "MISSING_BITCODE_FILES" => Some(Self::MissingBitcodeFiles),
+                "IMPORTS_READ_IO_EXCEPTION" => Some(Self::ImportsReadIoException),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct TestAction {
+    #[prost(enumeration = "test_action::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `TestAction`.
+pub mod test_action {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        TestActionUnknown = 0,
+        NoKeepGoingTestFailure = 1,
+        LocalTestPrereqUnmet = 2,
+        CommandLineExpansionFailure = 3,
+        DuplicateCpuTags = 4,
+        InvalidCpuTag = 5,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::TestActionUnknown => "TEST_ACTION_UNKNOWN",
+                Self::NoKeepGoingTestFailure => "NO_KEEP_GOING_TEST_FAILURE",
+                Self::LocalTestPrereqUnmet => "LOCAL_TEST_PREREQ_UNMET",
+                Self::CommandLineExpansionFailure => "COMMAND_LINE_EXPANSION_FAILURE",
+                Self::DuplicateCpuTags => "DUPLICATE_CPU_TAGS",
+                Self::InvalidCpuTag => "INVALID_CPU_TAG",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "TEST_ACTION_UNKNOWN" => Some(Self::TestActionUnknown),
+                "NO_KEEP_GOING_TEST_FAILURE" => Some(Self::NoKeepGoingTestFailure),
+                "LOCAL_TEST_PREREQ_UNMET" => Some(Self::LocalTestPrereqUnmet),
+                "COMMAND_LINE_EXPANSION_FAILURE" => {
+                    Some(Self::CommandLineExpansionFailure)
+                }
+                "DUPLICATE_CPU_TAGS" => Some(Self::DuplicateCpuTags),
+                "INVALID_CPU_TAG" => Some(Self::InvalidCpuTag),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct Worker {
+    #[prost(enumeration = "worker::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `Worker`.
+pub mod worker {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        WorkerUnknown = 0,
+        MultiplexerInstanceRemovalFailure = 1,
+        MultiplexerDoesNotExist = 2,
+        NoTools = 3,
+        NoFlagfile = 4,
+        VirtualInputMaterializationFailure = 5,
+        BorrowFailure = 6,
+        PrefetchFailure = 7,
+        PrepareFailure = 8,
+        RequestFailure = 9,
+        ParseResponseFailure = 10,
+        NoResponse = 11,
+        FinishFailure = 12,
+        ForbiddenInput = 13,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::WorkerUnknown => "WORKER_UNKNOWN",
+                Self::MultiplexerInstanceRemovalFailure => {
+                    "MULTIPLEXER_INSTANCE_REMOVAL_FAILURE"
+                }
+                Self::MultiplexerDoesNotExist => "MULTIPLEXER_DOES_NOT_EXIST",
+                Self::NoTools => "NO_TOOLS",
+                Self::NoFlagfile => "NO_FLAGFILE",
+                Self::VirtualInputMaterializationFailure => {
+                    "VIRTUAL_INPUT_MATERIALIZATION_FAILURE"
+                }
+                Self::BorrowFailure => "BORROW_FAILURE",
+                Self::PrefetchFailure => "PREFETCH_FAILURE",
+                Self::PrepareFailure => "PREPARE_FAILURE",
+                Self::RequestFailure => "REQUEST_FAILURE",
+                Self::ParseResponseFailure => "PARSE_RESPONSE_FAILURE",
+                Self::NoResponse => "NO_RESPONSE",
+                Self::FinishFailure => "FINISH_FAILURE",
+                Self::ForbiddenInput => "FORBIDDEN_INPUT",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "WORKER_UNKNOWN" => Some(Self::WorkerUnknown),
+                "MULTIPLEXER_INSTANCE_REMOVAL_FAILURE" => {
+                    Some(Self::MultiplexerInstanceRemovalFailure)
+                }
+                "MULTIPLEXER_DOES_NOT_EXIST" => Some(Self::MultiplexerDoesNotExist),
+                "NO_TOOLS" => Some(Self::NoTools),
+                "NO_FLAGFILE" => Some(Self::NoFlagfile),
+                "VIRTUAL_INPUT_MATERIALIZATION_FAILURE" => {
+                    Some(Self::VirtualInputMaterializationFailure)
+                }
+                "BORROW_FAILURE" => Some(Self::BorrowFailure),
+                "PREFETCH_FAILURE" => Some(Self::PrefetchFailure),
+                "PREPARE_FAILURE" => Some(Self::PrepareFailure),
+                "REQUEST_FAILURE" => Some(Self::RequestFailure),
+                "PARSE_RESPONSE_FAILURE" => Some(Self::ParseResponseFailure),
+                "NO_RESPONSE" => Some(Self::NoResponse),
+                "FINISH_FAILURE" => Some(Self::FinishFailure),
+                "FORBIDDEN_INPUT" => Some(Self::ForbiddenInput),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct Analysis {
+    #[prost(enumeration = "analysis::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `Analysis`.
+pub mod analysis {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        AnalysisUnknown = 0,
+        LoadFailure = 1,
+        /// TODO(b/138456686): this code should be deprecated in favor of more finely
+        ///    resolved loading-phase codes.
+        GenericLoadingPhaseFailure = 2,
+        NotAllTargetsAnalyzed = 3,
+        Cycle = 4,
+        ParameterizedTopLevelAspectInvalid = 5,
+        AspectLabelSyntaxError = 6,
+        AspectPrereqUnmet = 7,
+        AspectNotFound = 8,
+        ActionConflict = 9,
+        ArtifactPrefixConflict = 10,
+        UnexpectedAnalysisException = 11,
+        TargetsMissingEnvironments = 12,
+        InvalidEnvironment = 13,
+        EnvironmentMissingFromGroups = 14,
+        ExecGroupMissing = 15,
+        InvalidExecutionPlatform = 16,
+        AspectCreationFailed = 17,
+        ConfiguredValueCreationFailed = 18,
+        IncompatibleTargetRequested = 19,
+        AnalysisFailurePropagationFailed = 20,
+        AnalysisCacheDiscarded = 21,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::AnalysisUnknown => "ANALYSIS_UNKNOWN",
+                Self::LoadFailure => "LOAD_FAILURE",
+                Self::GenericLoadingPhaseFailure => "GENERIC_LOADING_PHASE_FAILURE",
+                Self::NotAllTargetsAnalyzed => "NOT_ALL_TARGETS_ANALYZED",
+                Self::Cycle => "CYCLE",
+                Self::ParameterizedTopLevelAspectInvalid => {
+                    "PARAMETERIZED_TOP_LEVEL_ASPECT_INVALID"
+                }
+                Self::AspectLabelSyntaxError => "ASPECT_LABEL_SYNTAX_ERROR",
+                Self::AspectPrereqUnmet => "ASPECT_PREREQ_UNMET",
+                Self::AspectNotFound => "ASPECT_NOT_FOUND",
+                Self::ActionConflict => "ACTION_CONFLICT",
+                Self::ArtifactPrefixConflict => "ARTIFACT_PREFIX_CONFLICT",
+                Self::UnexpectedAnalysisException => "UNEXPECTED_ANALYSIS_EXCEPTION",
+                Self::TargetsMissingEnvironments => "TARGETS_MISSING_ENVIRONMENTS",
+                Self::InvalidEnvironment => "INVALID_ENVIRONMENT",
+                Self::EnvironmentMissingFromGroups => "ENVIRONMENT_MISSING_FROM_GROUPS",
+                Self::ExecGroupMissing => "EXEC_GROUP_MISSING",
+                Self::InvalidExecutionPlatform => "INVALID_EXECUTION_PLATFORM",
+                Self::AspectCreationFailed => "ASPECT_CREATION_FAILED",
+                Self::ConfiguredValueCreationFailed => "CONFIGURED_VALUE_CREATION_FAILED",
+                Self::IncompatibleTargetRequested => "INCOMPATIBLE_TARGET_REQUESTED",
+                Self::AnalysisFailurePropagationFailed => {
+                    "ANALYSIS_FAILURE_PROPAGATION_FAILED"
+                }
+                Self::AnalysisCacheDiscarded => "ANALYSIS_CACHE_DISCARDED",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "ANALYSIS_UNKNOWN" => Some(Self::AnalysisUnknown),
+                "LOAD_FAILURE" => Some(Self::LoadFailure),
+                "GENERIC_LOADING_PHASE_FAILURE" => Some(Self::GenericLoadingPhaseFailure),
+                "NOT_ALL_TARGETS_ANALYZED" => Some(Self::NotAllTargetsAnalyzed),
+                "CYCLE" => Some(Self::Cycle),
+                "PARAMETERIZED_TOP_LEVEL_ASPECT_INVALID" => {
+                    Some(Self::ParameterizedTopLevelAspectInvalid)
+                }
+                "ASPECT_LABEL_SYNTAX_ERROR" => Some(Self::AspectLabelSyntaxError),
+                "ASPECT_PREREQ_UNMET" => Some(Self::AspectPrereqUnmet),
+                "ASPECT_NOT_FOUND" => Some(Self::AspectNotFound),
+                "ACTION_CONFLICT" => Some(Self::ActionConflict),
+                "ARTIFACT_PREFIX_CONFLICT" => Some(Self::ArtifactPrefixConflict),
+                "UNEXPECTED_ANALYSIS_EXCEPTION" => {
+                    Some(Self::UnexpectedAnalysisException)
+                }
+                "TARGETS_MISSING_ENVIRONMENTS" => Some(Self::TargetsMissingEnvironments),
+                "INVALID_ENVIRONMENT" => Some(Self::InvalidEnvironment),
+                "ENVIRONMENT_MISSING_FROM_GROUPS" => {
+                    Some(Self::EnvironmentMissingFromGroups)
+                }
+                "EXEC_GROUP_MISSING" => Some(Self::ExecGroupMissing),
+                "INVALID_EXECUTION_PLATFORM" => Some(Self::InvalidExecutionPlatform),
+                "ASPECT_CREATION_FAILED" => Some(Self::AspectCreationFailed),
+                "CONFIGURED_VALUE_CREATION_FAILED" => {
+                    Some(Self::ConfiguredValueCreationFailed)
+                }
+                "INCOMPATIBLE_TARGET_REQUESTED" => {
+                    Some(Self::IncompatibleTargetRequested)
+                }
+                "ANALYSIS_FAILURE_PROPAGATION_FAILED" => {
+                    Some(Self::AnalysisFailurePropagationFailed)
+                }
+                "ANALYSIS_CACHE_DISCARDED" => Some(Self::AnalysisCacheDiscarded),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct PackageLoading {
+    #[prost(enumeration = "package_loading::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `PackageLoading`.
+pub mod package_loading {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        PackageLoadingUnknown = 0,
+        WorkspaceFileError = 1,
+        MaxComputationStepsExceeded = 2,
+        BuildFileMissing = 3,
+        RepositoryMissing = 4,
+        PersistentInconsistentFilesystemError = 5,
+        TransientInconsistentFilesystemError = 6,
+        InvalidName = 7,
+        EvalGlobsSymlinkError = 9,
+        ImportStarlarkFileError = 10,
+        PackageMissing = 11,
+        TargetMissing = 12,
+        NoSuchThing = 13,
+        GlobIoException = 14,
+        DuplicateLabel = 15,
+        InvalidPackageSpecification = 16,
+        SyntaxError = 17,
+        EnvironmentInDifferentPackage = 18,
+        DefaultEnvironmentUndeclared = 19,
+        EnvironmentInMultipleGroups = 20,
+        EnvironmentDoesNotExist = 21,
+        EnvironmentInvalid = 22,
+        EnvironmentNotInGroup = 23,
+        PackageNameInvalid = 24,
+        StarlarkEvalError = 25,
+        LicenseParseFailure = 26,
+        DistributionsParseFailure = 27,
+        LabelCrossesPackageBoundary = 28,
+        /// Failure while evaluating or applying @_builtins injection. Since the
+        /// builtins .bzl files are always packaged with Blaze in production, a
+        /// failure here generally indicates a bug in Blaze.
+        BuiltinsInjectionFailure = 29,
+        SymlinkCycleOrInfiniteExpansion = 30,
+        OtherIoException = 31,
+        BadRepoFile = 32,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::PackageLoadingUnknown => "PACKAGE_LOADING_UNKNOWN",
+                Self::WorkspaceFileError => "WORKSPACE_FILE_ERROR",
+                Self::MaxComputationStepsExceeded => "MAX_COMPUTATION_STEPS_EXCEEDED",
+                Self::BuildFileMissing => "BUILD_FILE_MISSING",
+                Self::RepositoryMissing => "REPOSITORY_MISSING",
+                Self::PersistentInconsistentFilesystemError => {
+                    "PERSISTENT_INCONSISTENT_FILESYSTEM_ERROR"
+                }
+                Self::TransientInconsistentFilesystemError => {
+                    "TRANSIENT_INCONSISTENT_FILESYSTEM_ERROR"
+                }
+                Self::InvalidName => "INVALID_NAME",
+                Self::EvalGlobsSymlinkError => "EVAL_GLOBS_SYMLINK_ERROR",
+                Self::ImportStarlarkFileError => "IMPORT_STARLARK_FILE_ERROR",
+                Self::PackageMissing => "PACKAGE_MISSING",
+                Self::TargetMissing => "TARGET_MISSING",
+                Self::NoSuchThing => "NO_SUCH_THING",
+                Self::GlobIoException => "GLOB_IO_EXCEPTION",
+                Self::DuplicateLabel => "DUPLICATE_LABEL",
+                Self::InvalidPackageSpecification => "INVALID_PACKAGE_SPECIFICATION",
+                Self::SyntaxError => "SYNTAX_ERROR",
+                Self::EnvironmentInDifferentPackage => "ENVIRONMENT_IN_DIFFERENT_PACKAGE",
+                Self::DefaultEnvironmentUndeclared => "DEFAULT_ENVIRONMENT_UNDECLARED",
+                Self::EnvironmentInMultipleGroups => "ENVIRONMENT_IN_MULTIPLE_GROUPS",
+                Self::EnvironmentDoesNotExist => "ENVIRONMENT_DOES_NOT_EXIST",
+                Self::EnvironmentInvalid => "ENVIRONMENT_INVALID",
+                Self::EnvironmentNotInGroup => "ENVIRONMENT_NOT_IN_GROUP",
+                Self::PackageNameInvalid => "PACKAGE_NAME_INVALID",
+                Self::StarlarkEvalError => "STARLARK_EVAL_ERROR",
+                Self::LicenseParseFailure => "LICENSE_PARSE_FAILURE",
+                Self::DistributionsParseFailure => "DISTRIBUTIONS_PARSE_FAILURE",
+                Self::LabelCrossesPackageBoundary => "LABEL_CROSSES_PACKAGE_BOUNDARY",
+                Self::BuiltinsInjectionFailure => "BUILTINS_INJECTION_FAILURE",
+                Self::SymlinkCycleOrInfiniteExpansion => {
+                    "SYMLINK_CYCLE_OR_INFINITE_EXPANSION"
+                }
+                Self::OtherIoException => "OTHER_IO_EXCEPTION",
+                Self::BadRepoFile => "BAD_REPO_FILE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "PACKAGE_LOADING_UNKNOWN" => Some(Self::PackageLoadingUnknown),
+                "WORKSPACE_FILE_ERROR" => Some(Self::WorkspaceFileError),
+                "MAX_COMPUTATION_STEPS_EXCEEDED" => {
+                    Some(Self::MaxComputationStepsExceeded)
+                }
+                "BUILD_FILE_MISSING" => Some(Self::BuildFileMissing),
+                "REPOSITORY_MISSING" => Some(Self::RepositoryMissing),
+                "PERSISTENT_INCONSISTENT_FILESYSTEM_ERROR" => {
+                    Some(Self::PersistentInconsistentFilesystemError)
+                }
+                "TRANSIENT_INCONSISTENT_FILESYSTEM_ERROR" => {
+                    Some(Self::TransientInconsistentFilesystemError)
+                }
+                "INVALID_NAME" => Some(Self::InvalidName),
+                "EVAL_GLOBS_SYMLINK_ERROR" => Some(Self::EvalGlobsSymlinkError),
+                "IMPORT_STARLARK_FILE_ERROR" => Some(Self::ImportStarlarkFileError),
+                "PACKAGE_MISSING" => Some(Self::PackageMissing),
+                "TARGET_MISSING" => Some(Self::TargetMissing),
+                "NO_SUCH_THING" => Some(Self::NoSuchThing),
+                "GLOB_IO_EXCEPTION" => Some(Self::GlobIoException),
+                "DUPLICATE_LABEL" => Some(Self::DuplicateLabel),
+                "INVALID_PACKAGE_SPECIFICATION" => {
+                    Some(Self::InvalidPackageSpecification)
+                }
+                "SYNTAX_ERROR" => Some(Self::SyntaxError),
+                "ENVIRONMENT_IN_DIFFERENT_PACKAGE" => {
+                    Some(Self::EnvironmentInDifferentPackage)
+                }
+                "DEFAULT_ENVIRONMENT_UNDECLARED" => {
+                    Some(Self::DefaultEnvironmentUndeclared)
+                }
+                "ENVIRONMENT_IN_MULTIPLE_GROUPS" => {
+                    Some(Self::EnvironmentInMultipleGroups)
+                }
+                "ENVIRONMENT_DOES_NOT_EXIST" => Some(Self::EnvironmentDoesNotExist),
+                "ENVIRONMENT_INVALID" => Some(Self::EnvironmentInvalid),
+                "ENVIRONMENT_NOT_IN_GROUP" => Some(Self::EnvironmentNotInGroup),
+                "PACKAGE_NAME_INVALID" => Some(Self::PackageNameInvalid),
+                "STARLARK_EVAL_ERROR" => Some(Self::StarlarkEvalError),
+                "LICENSE_PARSE_FAILURE" => Some(Self::LicenseParseFailure),
+                "DISTRIBUTIONS_PARSE_FAILURE" => Some(Self::DistributionsParseFailure),
+                "LABEL_CROSSES_PACKAGE_BOUNDARY" => {
+                    Some(Self::LabelCrossesPackageBoundary)
+                }
+                "BUILTINS_INJECTION_FAILURE" => Some(Self::BuiltinsInjectionFailure),
+                "SYMLINK_CYCLE_OR_INFINITE_EXPANSION" => {
+                    Some(Self::SymlinkCycleOrInfiniteExpansion)
+                }
+                "OTHER_IO_EXCEPTION" => Some(Self::OtherIoException),
+                "BAD_REPO_FILE" => Some(Self::BadRepoFile),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct Toolchain {
+    #[prost(enumeration = "toolchain::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `Toolchain`.
+pub mod toolchain {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        ToolchainUnknown = 0,
+        MissingProvider = 1,
+        InvalidConstraintValue = 2,
+        InvalidPlatformValue = 3,
+        InvalidToolchain = 4,
+        NoMatchingExecutionPlatform = 5,
+        NoMatchingToolchain = 6,
+        InvalidToolchainType = 7,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::ToolchainUnknown => "TOOLCHAIN_UNKNOWN",
+                Self::MissingProvider => "MISSING_PROVIDER",
+                Self::InvalidConstraintValue => "INVALID_CONSTRAINT_VALUE",
+                Self::InvalidPlatformValue => "INVALID_PLATFORM_VALUE",
+                Self::InvalidToolchain => "INVALID_TOOLCHAIN",
+                Self::NoMatchingExecutionPlatform => "NO_MATCHING_EXECUTION_PLATFORM",
+                Self::NoMatchingToolchain => "NO_MATCHING_TOOLCHAIN",
+                Self::InvalidToolchainType => "INVALID_TOOLCHAIN_TYPE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "TOOLCHAIN_UNKNOWN" => Some(Self::ToolchainUnknown),
+                "MISSING_PROVIDER" => Some(Self::MissingProvider),
+                "INVALID_CONSTRAINT_VALUE" => Some(Self::InvalidConstraintValue),
+                "INVALID_PLATFORM_VALUE" => Some(Self::InvalidPlatformValue),
+                "INVALID_TOOLCHAIN" => Some(Self::InvalidToolchain),
+                "NO_MATCHING_EXECUTION_PLATFORM" => {
+                    Some(Self::NoMatchingExecutionPlatform)
+                }
+                "NO_MATCHING_TOOLCHAIN" => Some(Self::NoMatchingToolchain),
+                "INVALID_TOOLCHAIN_TYPE" => Some(Self::InvalidToolchainType),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct StarlarkLoading {
+    #[prost(enumeration = "starlark_loading::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `StarlarkLoading`.
+pub mod starlark_loading {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        StarlarkLoadingUnknown = 0,
+        Cycle = 1,
+        CompileError = 2,
+        ParseError = 3,
+        EvalError = 4,
+        ContainingPackageNotFound = 5,
+        PackageNotFound = 6,
+        IoError = 7,
+        LabelCrossesPackageBoundary = 8,
+        BuiltinsError = 9,
+        VisibilityError = 10,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::StarlarkLoadingUnknown => "STARLARK_LOADING_UNKNOWN",
+                Self::Cycle => "CYCLE",
+                Self::CompileError => "COMPILE_ERROR",
+                Self::ParseError => "PARSE_ERROR",
+                Self::EvalError => "EVAL_ERROR",
+                Self::ContainingPackageNotFound => "CONTAINING_PACKAGE_NOT_FOUND",
+                Self::PackageNotFound => "PACKAGE_NOT_FOUND",
+                Self::IoError => "IO_ERROR",
+                Self::LabelCrossesPackageBoundary => "LABEL_CROSSES_PACKAGE_BOUNDARY",
+                Self::BuiltinsError => "BUILTINS_ERROR",
+                Self::VisibilityError => "VISIBILITY_ERROR",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "STARLARK_LOADING_UNKNOWN" => Some(Self::StarlarkLoadingUnknown),
+                "CYCLE" => Some(Self::Cycle),
+                "COMPILE_ERROR" => Some(Self::CompileError),
+                "PARSE_ERROR" => Some(Self::ParseError),
+                "EVAL_ERROR" => Some(Self::EvalError),
+                "CONTAINING_PACKAGE_NOT_FOUND" => Some(Self::ContainingPackageNotFound),
+                "PACKAGE_NOT_FOUND" => Some(Self::PackageNotFound),
+                "IO_ERROR" => Some(Self::IoError),
+                "LABEL_CROSSES_PACKAGE_BOUNDARY" => {
+                    Some(Self::LabelCrossesPackageBoundary)
+                }
+                "BUILTINS_ERROR" => Some(Self::BuiltinsError),
+                "VISIBILITY_ERROR" => Some(Self::VisibilityError),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct ExternalDeps {
+    #[prost(enumeration = "external_deps::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `ExternalDeps`.
+pub mod external_deps {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        ExternalDepsUnknown = 0,
+        ModuleNotFound = 1,
+        BadModule = 2,
+        VersionResolutionError = 3,
+        InvalidRegistryUrl = 4,
+        ErrorAccessingRegistry = 5,
+        InvalidExtensionImport = 6,
+        BadLockfile = 7,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::ExternalDepsUnknown => "EXTERNAL_DEPS_UNKNOWN",
+                Self::ModuleNotFound => "MODULE_NOT_FOUND",
+                Self::BadModule => "BAD_MODULE",
+                Self::VersionResolutionError => "VERSION_RESOLUTION_ERROR",
+                Self::InvalidRegistryUrl => "INVALID_REGISTRY_URL",
+                Self::ErrorAccessingRegistry => "ERROR_ACCESSING_REGISTRY",
+                Self::InvalidExtensionImport => "INVALID_EXTENSION_IMPORT",
+                Self::BadLockfile => "BAD_LOCKFILE",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "EXTERNAL_DEPS_UNKNOWN" => Some(Self::ExternalDepsUnknown),
+                "MODULE_NOT_FOUND" => Some(Self::ModuleNotFound),
+                "BAD_MODULE" => Some(Self::BadModule),
+                "VERSION_RESOLUTION_ERROR" => Some(Self::VersionResolutionError),
+                "INVALID_REGISTRY_URL" => Some(Self::InvalidRegistryUrl),
+                "ERROR_ACCESSING_REGISTRY" => Some(Self::ErrorAccessingRegistry),
+                "INVALID_EXTENSION_IMPORT" => Some(Self::InvalidExtensionImport),
+                "BAD_LOCKFILE" => Some(Self::BadLockfile),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct DiffAwareness {
+    #[prost(enumeration = "diff_awareness::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `DiffAwareness`.
+pub mod diff_awareness {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        DiffAwarenessUnknown = 0,
+        DiffStatFailed = 1,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::DiffAwarenessUnknown => "DIFF_AWARENESS_UNKNOWN",
+                Self::DiffStatFailed => "DIFF_STAT_FAILED",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "DIFF_AWARENESS_UNKNOWN" => Some(Self::DiffAwarenessUnknown),
+                "DIFF_STAT_FAILED" => Some(Self::DiffStatFailed),
+                _ => None,
+            }
+        }
+    }
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct ModCommand {
+    #[prost(enumeration = "mod_command::Code", tag = "1")]
+    pub code: i32,
+}
+/// Nested message and enum types in `ModCommand`.
+pub mod mod_command {
+    #[derive(
+        Clone,
+        Copy,
+        Debug,
+        PartialEq,
+        Eq,
+        Hash,
+        PartialOrd,
+        Ord,
+        ::prost::Enumeration
+    )]
+    #[repr(i32)]
+    pub enum Code {
+        ModCommandUnknown = 0,
+        MissingArguments = 1,
+        TooManyArguments = 2,
+        InvalidArguments = 3,
+        BuildozerFailed = 4,
+    }
+    impl Code {
+        /// String value of the enum field names used in the ProtoBuf definition.
+        ///
+        /// The values are not transformed in any way and thus are considered stable
+        /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+        pub fn as_str_name(&self) -> &'static str {
+            match self {
+                Self::ModCommandUnknown => "MOD_COMMAND_UNKNOWN",
+                Self::MissingArguments => "MISSING_ARGUMENTS",
+                Self::TooManyArguments => "TOO_MANY_ARGUMENTS",
+                Self::InvalidArguments => "INVALID_ARGUMENTS",
+                Self::BuildozerFailed => "BUILDOZER_FAILED",
+            }
+        }
+        /// Creates an enum from field names used in the ProtoBuf definition.
+        pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+            match value {
+                "MOD_COMMAND_UNKNOWN" => Some(Self::ModCommandUnknown),
+                "MISSING_ARGUMENTS" => Some(Self::MissingArguments),
+                "TOO_MANY_ARGUMENTS" => Some(Self::TooManyArguments),
+                "INVALID_ARGUMENTS" => Some(Self::InvalidArguments),
+                "BUILDOZER_FAILED" => Some(Self::BuildozerFailed),
+                _ => None,
+            }
+        }
+    }
+}
diff --git a/nativelink-proto/genproto/lib.rs b/nativelink-proto/genproto/lib.rs
index 98080ff3b..c57d3b330 100644
--- a/nativelink-proto/genproto/lib.rs
+++ b/nativelink-proto/genproto/lib.rs
@@ -16,7 +16,14 @@
 // This file is auto-generated. To update it, run:
 // `bazel run nativelink-proto:update_protos`
 
-#![allow(clippy::default_trait_access, clippy::doc_markdown)]
+#![allow(
+    clippy::default_trait_access,
+    clippy::doc_lazy_continuation,
+    clippy::doc_markdown,
+    clippy::doc_markdown,
+    clippy::large_enum_variant,
+    rustdoc::invalid_html_tags,
+)]
 
 pub mod build {
     pub mod bazel {
@@ -39,6 +46,9 @@ pub mod com {
                 pub mod remote_execution {
                     include!("com.github.trace_machina.nativelink.remote_execution.pb.rs");
                 }
+                pub mod events {
+                    include!("com.github.trace_machina.nativelink.events.pb.rs");
+                }
             }
         }
     }
@@ -64,3 +74,35 @@ pub mod google {
         include!("google.rpc.pb.rs");
     }
 }
+pub mod build_event_stream {
+    include!("build_event_stream.pb.rs");
+}
+pub mod command_line {
+    include!("command_line.pb.rs");
+}
+pub mod devtools {
+    pub mod build {
+        pub mod lib {
+            pub mod packages {
+                pub mod metrics {
+                    include!("devtools.build.lib.packages.metrics.pb.rs");
+                }
+            }
+        }
+    }
+}
+pub mod blaze {
+    include!("blaze.pb.rs");
+    pub mod invocation_policy {
+        include!("blaze.invocation_policy.pb.rs");
+    }
+    pub mod strategy_policy {
+        include!("blaze.strategy_policy.pb.rs");
+    }
+}
+pub mod options {
+    include!("options.pb.rs");
+}
+pub mod failure_details {
+    include!("failure_details.pb.rs");
+}
diff --git a/nativelink-proto/genproto/options.pb.rs b/nativelink-proto/genproto/options.pb.rs
new file mode 100644
index 000000000..562f49116
--- /dev/null
+++ b/nativelink-proto/genproto/options.pb.rs
@@ -0,0 +1,126 @@
+// Copyright 2022 The NativeLink Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This file is @generated by prost-build.
+/// Docs in java enum.
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord, ::prost::Enumeration)]
+#[repr(i32)]
+pub enum OptionEffectTag {
+    /// This option's effect or intent is unknown.
+    Unknown = 0,
+    /// This flag has literally no effect.
+    NoOp = 1,
+    LosesIncrementalState = 2,
+    ChangesInputs = 3,
+    AffectsOutputs = 4,
+    BuildFileSemantics = 5,
+    BazelInternalConfiguration = 6,
+    LoadingAndAnalysis = 7,
+    Execution = 8,
+    HostMachineResourceOptimizations = 9,
+    EagernessToExit = 10,
+    BazelMonitoring = 11,
+    TerminalOutput = 12,
+    ActionCommandLines = 13,
+    TestRunner = 14,
+}
+impl OptionEffectTag {
+    /// String value of the enum field names used in the ProtoBuf definition.
+    ///
+    /// The values are not transformed in any way and thus are considered stable
+    /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+    pub fn as_str_name(&self) -> &'static str {
+        match self {
+            Self::Unknown => "UNKNOWN",
+            Self::NoOp => "NO_OP",
+            Self::LosesIncrementalState => "LOSES_INCREMENTAL_STATE",
+            Self::ChangesInputs => "CHANGES_INPUTS",
+            Self::AffectsOutputs => "AFFECTS_OUTPUTS",
+            Self::BuildFileSemantics => "BUILD_FILE_SEMANTICS",
+            Self::BazelInternalConfiguration => "BAZEL_INTERNAL_CONFIGURATION",
+            Self::LoadingAndAnalysis => "LOADING_AND_ANALYSIS",
+            Self::Execution => "EXECUTION",
+            Self::HostMachineResourceOptimizations => {
+                "HOST_MACHINE_RESOURCE_OPTIMIZATIONS"
+            }
+            Self::EagernessToExit => "EAGERNESS_TO_EXIT",
+            Self::BazelMonitoring => "BAZEL_MONITORING",
+            Self::TerminalOutput => "TERMINAL_OUTPUT",
+            Self::ActionCommandLines => "ACTION_COMMAND_LINES",
+            Self::TestRunner => "TEST_RUNNER",
+        }
+    }
+    /// Creates an enum from field names used in the ProtoBuf definition.
+    pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+        match value {
+            "UNKNOWN" => Some(Self::Unknown),
+            "NO_OP" => Some(Self::NoOp),
+            "LOSES_INCREMENTAL_STATE" => Some(Self::LosesIncrementalState),
+            "CHANGES_INPUTS" => Some(Self::ChangesInputs),
+            "AFFECTS_OUTPUTS" => Some(Self::AffectsOutputs),
+            "BUILD_FILE_SEMANTICS" => Some(Self::BuildFileSemantics),
+            "BAZEL_INTERNAL_CONFIGURATION" => Some(Self::BazelInternalConfiguration),
+            "LOADING_AND_ANALYSIS" => Some(Self::LoadingAndAnalysis),
+            "EXECUTION" => Some(Self::Execution),
+            "HOST_MACHINE_RESOURCE_OPTIMIZATIONS" => {
+                Some(Self::HostMachineResourceOptimizations)
+            }
+            "EAGERNESS_TO_EXIT" => Some(Self::EagernessToExit),
+            "BAZEL_MONITORING" => Some(Self::BazelMonitoring),
+            "TERMINAL_OUTPUT" => Some(Self::TerminalOutput),
+            "ACTION_COMMAND_LINES" => Some(Self::ActionCommandLines),
+            "TEST_RUNNER" => Some(Self::TestRunner),
+            _ => None,
+        }
+    }
+}
+/// Docs in java enum.
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord, ::prost::Enumeration)]
+#[repr(i32)]
+pub enum OptionMetadataTag {
+    Experimental = 0,
+    IncompatibleChange = 1,
+    Deprecated = 2,
+    Hidden = 3,
+    Internal = 4,
+    Immutable = 7,
+}
+impl OptionMetadataTag {
+    /// String value of the enum field names used in the ProtoBuf definition.
+    ///
+    /// The values are not transformed in any way and thus are considered stable
+    /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+    pub fn as_str_name(&self) -> &'static str {
+        match self {
+            Self::Experimental => "EXPERIMENTAL",
+            Self::IncompatibleChange => "INCOMPATIBLE_CHANGE",
+            Self::Deprecated => "DEPRECATED",
+            Self::Hidden => "HIDDEN",
+            Self::Internal => "INTERNAL",
+            Self::Immutable => "IMMUTABLE",
+        }
+    }
+    /// Creates an enum from field names used in the ProtoBuf definition.
+    pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+        match value {
+            "EXPERIMENTAL" => Some(Self::Experimental),
+            "INCOMPATIBLE_CHANGE" => Some(Self::IncompatibleChange),
+            "DEPRECATED" => Some(Self::Deprecated),
+            "HIDDEN" => Some(Self::Hidden),
+            "INTERNAL" => Some(Self::Internal),
+            "IMMUTABLE" => Some(Self::Immutable),
+            _ => None,
+        }
+    }
+}
diff --git a/nativelink-proto/src/main/java/com/google/devtools/build/lib/buildeventstream/proto/build_event_stream.proto b/nativelink-proto/src/main/java/com/google/devtools/build/lib/buildeventstream/proto/build_event_stream.proto
new file mode 100644
index 000000000..80155cbd8
--- /dev/null
+++ b/nativelink-proto/src/main/java/com/google/devtools/build/lib/buildeventstream/proto/build_event_stream.proto
@@ -0,0 +1,1446 @@
+// Copyright 2016 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// LINT: LEGACY_NAMES
+
+syntax = "proto3";
+
+package build_event_stream;
+
+import "google/protobuf/any.proto";
+import "google/protobuf/duration.proto";
+import "google/protobuf/timestamp.proto";
+import "src/main/java/com/google/devtools/build/lib/packages/metrics/package_load_metrics.proto";
+import "src/main/protobuf/action_cache.proto";
+import "src/main/protobuf/command_line.proto";
+import "src/main/protobuf/failure_details.proto";
+import "src/main/protobuf/invocation_policy.proto";
+
+option java_package = "com.google.devtools.build.lib.buildeventstream";
+option java_outer_classname = "BuildEventStreamProtos";
+
+// Identifier for a build event. It is deliberately structured to also provide
+// information about which build target etc the event is related to.
+//
+// Events are chained via the event id as follows: each event has an id and a
+// set of ids of children events such that apart from the initial event each
+// event has an id that is mentioned as child id in an earlier event and a build
+// invocation is complete if and only if all direct and indirect children of the
+// initial event have been posted.
+message BuildEventId {
+  // Generic identifier for a build event. This is the default type of
+  // BuildEventId, but should not be used outside testing; nevertheless,
+  // tools should handle build events with this kind of id gracefully.
+  message UnknownBuildEventId {
+    string details = 1;
+  }
+
+  // Identifier of an event reporting progress. Those events are also used to
+  // chain in events that come early.
+  message ProgressId {
+    // Unique identifier. No assumption should be made about how the ids are
+    // assigned; the only meaningful operation on this field is test for
+    // equality.
+    int32 opaque_count = 1;
+  }
+
+  // Identifier of an event indicating the beginning of a build; this will
+  // normally be the first event.
+  message BuildStartedId {}
+
+  // Identifier on an event indicating the original commandline received by
+  // the bazel server.
+  message UnstructuredCommandLineId {}
+
+  // Identifier on an event describing the commandline received by Bazel.
+  message StructuredCommandLineId {
+    // A title for this command line value, as there may be multiple.
+    // For example, a single invocation may wish to report both the literal and
+    // canonical command lines, and this label would be used to differentiate
+    // between both versions.
+    string command_line_label = 1;
+  }
+
+  // Identifier of an event indicating the workspace status.
+  message WorkspaceStatusId {}
+
+  // Identifier on an event reporting on the options included in the command
+  // line, both explicitly and implicitly.
+  message OptionsParsedId {}
+
+  // Identifier of an event reporting that an external resource was fetched
+  // from.
+  message FetchId {
+    // The external resource that was fetched from.
+    string url = 1;
+  }
+
+  // Identifier of an event indicating that a target pattern has been expanded
+  // further.
+  // Messages of this shape are also used to describe parts of a pattern that
+  // have been skipped for some reason, if the actual expansion was still
+  // carried out (e.g., if keep_going is set). In this case, the
+  // pattern_skipped choice in the id field is to be made.
+  message PatternExpandedId {
+    repeated string pattern = 1;
+  }
+
+  message WorkspaceConfigId {}
+
+  message BuildMetadataId {}
+
+  // Identifier of an event indicating that a target has been expanded by
+  // identifying for which configurations it should be build.
+  message TargetConfiguredId {
+    string label = 1;
+
+    // If empty, the id refers to the expansion of the target. If not-empty,
+    // the id refers to the expansion of an aspect applied to the (already
+    // expanded) target.
+    //
+    // For example, when building an apple_binary that depends on proto_library
+    // "//:foo_proto", there will be two TargetConfigured events for
+    // "//:foo_proto":
+    //
+    // 1. An event with an empty aspect, corresponding to actions producing
+    // language-agnostic outputs from the proto_library; and
+    // 2. An event with aspect "ObjcProtoAspect", corresponding to Objective-C
+    // code generation.
+    string aspect = 2;
+  }
+
+  // Identifier of an event introducing a named set of files (usually artifacts)
+  // to be referred to in later messages.
+  message NamedSetOfFilesId {
+    // Identifier of the file set; this is an opaque string valid only for the
+    // particular instance of the event stream.
+    string id = 1;
+  }
+
+  // Identifier of an event introducing a configuration.
+  message ConfigurationId {
+    // Identifier of the configuration; users of the protocol should not make
+    // any assumptions about it having any structure, or equality of the
+    // identifier between different streams.
+    //
+    // A value of "none" means the null configuration. It is used for targets
+    // that are not configurable, for example, source files.
+    string id = 1;
+  }
+
+  // Identifier of an event indicating that a target was built completely; this
+  // does not include running the test if the target is a test target.
+  message TargetCompletedId {
+    string label = 1;
+
+    // The configuration for which the target was built.
+    ConfigurationId configuration = 3;
+
+    // If empty, the id refers to the completion of the target. If not-empty,
+    // the id refers to the completion of an aspect applied to the (already
+    // completed) target.
+    //
+    // For example, when building an apple_binary that depends on proto_library
+    // "//:foo_proto", there will be two TargetCompleted events for
+    // "//:foo_proto":
+    //
+    // 1. An event with an empty aspect, corresponding to actions producing
+    // language-agnostic outputs from the proto_library; and
+    // 2. An event with aspect "ObjcProtoAspect", corresponding to Objective-C
+    // code generation.
+    string aspect = 2;
+  }
+
+  // Identifier of an event reporting that an action was completed (not all
+  // actions are reported, only the ones that can be considered important;
+  // this includes all failed actions).
+  message ActionCompletedId {
+    string primary_output = 1;
+    // Optional, the label of the owner of the action, for reference.
+    string label = 2;
+    // Optional, the id of the configuration of the action owner.
+    ConfigurationId configuration = 3;
+  }
+
+  // Identifier of an event reporting an event associated with an unconfigured
+  // label. Usually, this indicates a failure due to a missing input file. In
+  // any case, it will report some form of error (i.e., the payload will be an
+  // Aborted event); there are no regular events using this identifier. The
+  // purpose of those events is to serve as the root cause of a failed target.
+  message UnconfiguredLabelId {
+    string label = 1;
+  }
+
+  // Identifier of an event reporting an event associated with a configured
+  // label, usually a visibility error. In any case, an event with such an
+  // id will always report some form of error (i.e., the payload will be an
+  // Aborted event); there are no regular events using this identifier.
+  message ConfiguredLabelId {
+    string label = 1;
+    ConfigurationId configuration = 2;
+  }
+
+  // Identifier of an event reporting on an individual test run. The label
+  // identifies the test that is reported about, the remaining fields are
+  // in such a way as to uniquely identify the action within a build. In fact,
+  // attempts for the same test, run, shard triple are counted sequentially,
+  // starting with 1.
+  message TestResultId {
+    string label = 1;
+    ConfigurationId configuration = 5;
+    int32 run = 2;
+    int32 shard = 3;
+    int32 attempt = 4;
+  }
+
+  // Identifier of an event reporting progress of an individual test run.
+  message TestProgressId {
+    // The label of the target for the action.
+    string label = 1;
+    // The configuration under which the action is running.
+    ConfigurationId configuration = 2;
+    // The run number of the test action (e.g. for runs_per_test > 1).
+    int32 run = 3;
+    // For sharded tests, the shard number of the test action.
+    int32 shard = 4;
+    // The execution attempt number which may increase due to retries (e.g. for
+    // flaky tests).
+    int32 attempt = 5;
+    // An incrementing count used to differentiate TestProgressIds for the same
+    // test attempt.
+    int32 opaque_count = 6;
+  }
+
+  // Identifier of an event reporting the summary of a test.
+  message TestSummaryId {
+    string label = 1;
+    ConfigurationId configuration = 2;
+  }
+
+  // Identifier of an event reporting the summary of a target.
+  message TargetSummaryId {
+    string label = 1;
+    ConfigurationId configuration = 2;
+  }
+
+  // Identifier of the BuildFinished event, indicating the end of a build.
+  message BuildFinishedId {}
+
+  // Identifier of an event providing additional logs/statistics after
+  // completion of the build.
+  message BuildToolLogsId {}
+
+  // Identifier of an event providing build metrics after completion
+  // of the build.
+  message BuildMetricsId {}
+
+  // Identifier of an event providing convenience symlinks information.
+  message ConvenienceSymlinksIdentifiedId {}
+
+  // Identifier of an event providing the ExecRequest of a run command.
+  message ExecRequestId {}
+
+  reserved 27;
+
+  oneof id {
+    UnknownBuildEventId unknown = 1;
+    ProgressId progress = 2;
+    BuildStartedId started = 3;
+    UnstructuredCommandLineId unstructured_command_line = 11;
+    StructuredCommandLineId structured_command_line = 18;
+    WorkspaceStatusId workspace_status = 14;
+    OptionsParsedId options_parsed = 12;
+    FetchId fetch = 17;
+    ConfigurationId configuration = 15;
+    TargetConfiguredId target_configured = 16;
+    PatternExpandedId pattern = 4;
+    PatternExpandedId pattern_skipped = 10;
+    NamedSetOfFilesId named_set = 13;
+    TargetCompletedId target_completed = 5;
+    ActionCompletedId action_completed = 6;
+    UnconfiguredLabelId unconfigured_label = 19;
+    ConfiguredLabelId configured_label = 21;
+    TestResultId test_result = 8;
+    TestProgressId test_progress = 29;
+    TestSummaryId test_summary = 7;
+    TargetSummaryId target_summary = 26;
+    BuildFinishedId build_finished = 9;
+    BuildToolLogsId build_tool_logs = 20;
+    BuildMetricsId build_metrics = 22;
+    WorkspaceConfigId workspace = 23;
+    BuildMetadataId build_metadata = 24;
+    ConvenienceSymlinksIdentifiedId convenience_symlinks_identified = 25;
+    ExecRequestId exec_request = 28;
+  }
+}
+
+// Payload of an event summarizing the progress of the build so far. Those
+// events are also used to be parents of events where the more logical parent
+// event cannot be posted yet as the needed information is not yet complete.
+message Progress {
+  // The next chunk of stdout that bazel produced since the last progress event
+  // or the beginning of the build.
+  // Consumers that need to reason about the relative order of stdout and stderr
+  // can assume that stderr has been emitted before stdout if both are present,
+  // on a best-effort basis.
+  string stdout = 1;
+
+  // The next chunk of stderr that bazel produced since the last progress event
+  // or the beginning of the build.
+  // Consumers that need to reason about the relative order of stdout and stderr
+  // can assume that stderr has been emitted before stdout if both are present,
+  // on a best-effort basis.
+  string stderr = 2;
+}
+
+// Payload of an event indicating that an expected event will not come, as
+// the build is aborted prematurely for some reason.
+message Aborted {
+  enum AbortReason {
+    UNKNOWN = 0;
+
+    // The user requested the build to be aborted (e.g., by hitting Ctl-C).
+    USER_INTERRUPTED = 1;
+
+    // The user requested that no analysis be performed.
+    NO_ANALYZE = 8;
+
+    // The user requested that no build be carried out.
+    NO_BUILD = 9;
+
+    // The build or target was aborted as a timeout was exceeded.
+    TIME_OUT = 2;
+
+    // The build or target was aborted as some remote environment (e.g., for
+    // remote execution of actions) was not available in the expected way.
+    REMOTE_ENVIRONMENT_FAILURE = 3;
+
+    // Failure due to reasons entirely internal to the build tool, i.e. an
+    // unexpected crash due to programmer error.
+    INTERNAL = 4;
+
+    // A Failure occurred in the loading phase of a target.
+    LOADING_FAILURE = 5;
+
+    // A Failure occurred in the analysis phase of a target.
+    ANALYSIS_FAILURE = 6;
+
+    // Target build was skipped (e.g. due to incompatible CPU constraints).
+    SKIPPED = 7;
+
+    // Build incomplete due to an earlier build failure (e.g. --keep_going was
+    // set to false causing the build be ended upon failure).
+    INCOMPLETE = 10;
+
+    // The build tool ran out of memory and crashed.
+    OUT_OF_MEMORY = 11;
+  }
+  AbortReason reason = 1;
+
+  // A human readable description with more details about there reason, where
+  // available and useful.
+  string description = 2;
+}
+
+// Payload of an event indicating the beginning of a new build. Usually, events
+// of those type start a new build-event stream. The target pattern requested
+// to be build is contained in one of the announced child events; it is an
+// invariant that precisely one of the announced child events has a non-empty
+// target pattern.
+message BuildStarted {
+  string uuid = 1;
+
+  // Start of the build in ms since the epoch.
+  //
+  // Deprecated, use `start_time` instead.
+  //
+  // TODO(yannic): Remove.
+  int64 start_time_millis = 2 [deprecated = true];
+
+  // Start of the build.
+  google.protobuf.Timestamp start_time = 9;
+
+  // Version of the build tool that is running.
+  string build_tool_version = 3;
+
+  // A human-readable description of all the non-default option settings
+  string options_description = 4;
+
+  // The name of the command that the user invoked.
+  string command = 5;
+
+  // The working directory from which the build tool was invoked.
+  string working_directory = 6;
+
+  // The directory of the workspace.
+  string workspace_directory = 7;
+
+  // The process ID of the Bazel server.
+  int64 server_pid = 8;
+}
+
+// Configuration related to the blaze workspace and output tree.
+message WorkspaceConfig {
+  // The root of the local blaze exec root. All output files live underneath
+  // this at "blaze-out/".
+  string local_exec_root = 1;
+}
+
+// Payload of an event reporting the command-line of the invocation as
+// originally received by the server. Note that this is not the command-line
+// given by the user, as the client adds information about the invocation,
+// like name and relevant entries of rc-files and client environment variables.
+// However, it does contain enough information to reproduce the build
+// invocation.
+message UnstructuredCommandLine {
+  repeated string args = 1;
+}
+
+// Payload of an event reporting on the parsed options, grouped in various ways.
+message OptionsParsed {
+  repeated string startup_options = 1;
+  repeated string explicit_startup_options = 2;
+  repeated string cmd_line = 3;
+  repeated string explicit_cmd_line = 4;
+  blaze.invocation_policy.InvocationPolicy invocation_policy = 5;
+  string tool_tag = 6;
+}
+
+// Payload of an event indicating that an external resource was fetched. This
+// event will only occur in streams where an actual fetch happened, not in ones
+// where a cached copy of the entity to be fetched was used.
+message Fetch {
+  bool success = 1;
+}
+
+// Payload of an event reporting the workspace status. Key-value pairs can be
+// provided by specifying the workspace_status_command to an executable that
+// returns one key-value pair per line of output (key and value separated by a
+// space).
+message WorkspaceStatus {
+  message Item {
+    string key = 1;
+    string value = 2;
+  }
+  repeated Item item = 1;
+}
+
+// Payload of an event reporting custom key-value metadata associated with the
+// build.
+message BuildMetadata {
+  // Custom metadata for the build.
+  map<string, string> metadata = 1
+      ;
+}
+
+// Payload of an event reporting details of a given configuration.
+message Configuration {
+  string mnemonic = 1;
+  string platform_name = 2;
+  string cpu = 3;
+  map<string, string> make_variable = 4
+      ;
+  // Whether this configuration is used for building tools.
+  bool is_tool = 5;
+}
+
+// Payload of the event indicating the expansion of a target pattern.
+// The main information is in the chaining part: the id will contain the
+// target pattern that was expanded and the children id will contain the
+// target or target pattern it was expanded to.
+message PatternExpanded {
+  // Represents a test_suite target and the tests that it expanded to. Nested
+  // test suites are recursively expanded. The test labels only contain the
+  // final test targets, not any nested suites.
+  message TestSuiteExpansion {
+    // The label of the test_suite rule.
+    string suite_label = 1;
+    // Labels of the test targets included in the suite. Includes all tests in
+    // the suite regardless of any filters or negative patterns which may result
+    // in the test not actually being run.
+    repeated string test_labels = 2;
+  }
+
+  // All test suites requested via top-level target patterns. Does not include
+  // test suites whose label matched a negative pattern.
+  repeated TestSuiteExpansion test_suite_expansions = 1;
+}
+
+// Enumeration type characterizing the size of a test, as specified by the
+// test rule.
+enum TestSize {
+  UNKNOWN = 0;
+  SMALL = 1;
+  MEDIUM = 2;
+  LARGE = 3;
+  ENORMOUS = 4;
+}
+
+// Payload of the event indicating that the configurations for a target have
+// been identified. As with pattern expansion the main information is in the
+// chaining part: the id will contain the target that was configured and the
+// children id will contain the configured targets it was configured to.
+message TargetConfigured {
+  // The kind of target (e.g.,  e.g. "cc_library rule", "source file",
+  // "generated file") where the completion is reported.
+  string target_kind = 1;
+
+  // The size of the test, if the target is a test target. Unset otherwise.
+  TestSize test_size = 2;
+
+  // List of all tags associated with this target (for all possible
+  // configurations).
+  repeated string tag = 3;
+}
+
+message File {
+  // A sequence of prefixes to apply to the file name to construct a full path.
+  // In most but not all cases, there will be 3 entries:
+  //  1. A root output directory, eg "bazel-out"
+  //  2. A configuration mnemonic, eg "k8-fastbuild"
+  //  3. An output category, eg "genfiles"
+  repeated string path_prefix = 4;
+
+  // identifier indicating the nature of the file (e.g., "stdout", "stderr")
+  string name = 1;
+
+  oneof file {
+    // A location where the contents of the file can be found. The string is
+    // encoded according to RFC2396.
+    string uri = 2;
+    // The contents of the file, if they are guaranteed to be short.
+    bytes contents = 3;
+    // The symlink target path, if the file is an unresolved symlink.
+    string symlink_target_path = 7;
+  }
+
+  // Digest of the file, using the build tool's configured digest algorithm,
+  // hex-encoded.
+  string digest = 5;
+
+  // Length of the file in bytes.
+  int64 length = 6;
+}
+
+// Payload of a message to describe a set of files, usually build artifacts, to
+// be referred to later by their name. In this way, files that occur identically
+// as outputs of several targets have to be named only once.
+message NamedSetOfFiles {
+  // Files that belong to this named set of files.
+  repeated File files = 1;
+
+  // Other named sets whose members also belong to this set.
+  repeated BuildEventId.NamedSetOfFilesId file_sets = 2;
+}
+
+// Payload of the event indicating the completion of an action. The main purpose
+// of posting those events is to provide details on the root cause for a target
+// failing; however, consumers of the build-event protocol must not assume
+// that only failed actions are posted.
+message ActionExecuted {
+  bool success = 1;
+
+  // The mnemonic of the action that was executed
+  string type = 8;
+
+  // The exit code of the action, if it is available.
+  int32 exit_code = 2;
+
+  // Location where to find the standard output of the action
+  // (e.g., a file path).
+  File stdout = 3;
+
+  // Location where to find the standard error of the action
+  // (e.g., a file path).
+  File stderr = 4;
+
+  // Deprecated. This field is now present on ActionCompletedId.
+  string label = 5 [deprecated = true];
+
+  // Deprecated. This field is now present on ActionCompletedId.
+  BuildEventId.ConfigurationId configuration = 7 [deprecated = true];
+
+  // Primary output; only provided for successful actions.
+  File primary_output = 6;
+
+  // The command-line of the action, if the action is a command.
+  repeated string command_line = 9;
+
+  // List of paths to log files
+  repeated File action_metadata_logs = 10;
+
+  // Only populated if success = false, and sometimes not even then.
+  failure_details.FailureDetail failure_detail = 11;
+
+  // Start of action execution, before any attempted execution begins.
+  google.protobuf.Timestamp start_time = 12;
+
+  // End of action execution, after all attempted execution completes.
+  google.protobuf.Timestamp end_time = 13;
+
+  // Additional details about action execution supplied by strategies. Bazel
+  // options will determine which strategy details are included when multiple
+  // strategies are involved in a single action's execution.
+  //
+  // The default type will be `tools.proto.SpawnExec` found in `spawn.proto`.
+  repeated google.protobuf.Any strategy_details = 14;
+}
+
+// Collection of all output files belonging to that output group.
+message OutputGroup {
+  // Ids of fields that have been removed.
+  reserved 2;
+
+  // Name of the output group
+  string name = 1;
+
+  // List of file sets that belong to this output group as well.
+  repeated BuildEventId.NamedSetOfFilesId file_sets = 3;
+
+  // Indicates that one or more of the output group's files were not built
+  // successfully (the generating action failed).
+  bool incomplete = 4;
+
+  // Inlined files that belong to this output group, requested via
+  // --build_event_inline_output_groups.
+  repeated File inline_files = 5;
+}
+
+// Payload of the event indicating the completion of a target. The target is
+// specified in the id. If the target failed the root causes are provided as
+// children events.
+message TargetComplete {
+  bool success = 1;
+
+  // The kind of target (e.g.,  e.g. "cc_library rule", "source file",
+  // "generated file") where the completion is reported.
+  // Deprecated: use the target_kind field in TargetConfigured instead.
+  string target_kind = 5 [deprecated = true];
+
+  // The size of the test, if the target is a test target. Unset otherwise.
+  // Deprecated: use the test_size field in TargetConfigured instead.
+  TestSize test_size = 6 [deprecated = true];
+
+  // The output files are arranged by their output group. If an output file
+  // is part of multiple output groups, it appears once in each output
+  // group.
+  repeated OutputGroup output_group = 2;
+
+  // Temporarily, also report the important outputs directly. This is only to
+  // allow existing clients help transition to the deduplicated representation;
+  // new clients should not use it.
+  repeated File important_output = 4 [deprecated = true];
+
+  // Report output artifacts (referenced transitively via output_group) which
+  // emit directories instead of singleton files. These directory_output entries
+  // will never include a uri.
+  repeated File directory_output = 8;
+
+  // List of tags associated with this configured target.
+  repeated string tag = 3;
+
+  // The timeout specified for test actions under this configured target.
+  //
+  // Deprecated, use `test_timeout` instead.
+  //
+  // TODO(yannic): Remove.
+  int64 test_timeout_seconds = 7 [deprecated = true];
+
+  // The timeout specified for test actions under this configured target.
+  google.protobuf.Duration test_timeout = 10;
+
+  // Failure information about the target, only populated if success is false,
+  // and sometimes not even then. Equal to one of the ActionExecuted
+  // failure_detail fields for one of the root cause ActionExecuted events.
+  failure_details.FailureDetail failure_detail = 9;
+}
+
+enum TestStatus {
+  NO_STATUS = 0;
+  PASSED = 1;
+  FLAKY = 2;
+  TIMEOUT = 3;
+  FAILED = 4;
+  INCOMPLETE = 5;
+  REMOTE_FAILURE = 6;
+  FAILED_TO_BUILD = 7;
+  TOOL_HALTED_BEFORE_TESTING = 8;
+}
+
+// Payload on events reporting about individual test action.
+message TestResult {
+  reserved 1;
+
+  // The status of this test.
+  TestStatus status = 5;
+
+  // Additional details about the status of the test. This is intended for
+  // user display and must not be parsed.
+  string status_details = 9;
+
+  // True, if the reported attempt is taken from the tool's local cache.
+  bool cached_locally = 4;
+
+  // Time in milliseconds since the epoch at which the test attempt was started.
+  // Note: for cached test results, this is time can be before the start of the
+  // build.
+  //
+  // Deprecated, use `test_attempt_start` instead.
+  //
+  // TODO(yannic): Remove.
+  int64 test_attempt_start_millis_epoch = 6 [deprecated = true];
+
+  // Time at which the test attempt was started.
+  // Note: for cached test results, this is time can be before the start of the
+  // build.
+  google.protobuf.Timestamp test_attempt_start = 10;
+
+  // Time the test took to run. For locally cached results, this is the time
+  // the cached invocation took when it was invoked.
+  //
+  // Deprecated, use `test_attempt_duration` instead.
+  //
+  // TODO(yannic): Remove.
+  int64 test_attempt_duration_millis = 3 [deprecated = true];
+
+  // Time the test took to run. For locally cached results, this is the time
+  // the cached invocation took when it was invoked.
+  google.protobuf.Duration test_attempt_duration = 11;
+
+  // Files (logs, test.xml, undeclared outputs, etc) generated by that test
+  // action.
+  repeated File test_action_output = 2;
+
+  // Warnings generated by that test action.
+  repeated string warning = 7;
+
+  // Message providing optional meta data on the execution of the test action,
+  // if available.
+  message ExecutionInfo {
+    // Deprecated, use TargetComplete.test_timeout instead.
+    int32 timeout_seconds = 1 [deprecated = true];
+
+    // Name of the strategy to execute this test action (e.g., "local",
+    // "remote")
+    string strategy = 2;
+
+    // True, if the reported attempt was a cache hit in a remote cache.
+    bool cached_remotely = 6;
+
+    // The exit code of the test action.
+    int32 exit_code = 7;
+
+    // The hostname of the machine where the test action was executed (in case
+    // of remote execution), if known.
+    string hostname = 3;
+
+    // Represents a hierarchical timing breakdown of an activity.
+    // The top level time should be the total time of the activity.
+    // Invariant: `time` >= sum of `time`s of all direct children.
+    message TimingBreakdown {
+      repeated TimingBreakdown child = 1;
+      string name = 2;
+      // Deprecated, use `time` instead.
+      //
+      // TODO(yannic): Remove.
+      int64 time_millis = 3 [deprecated = true];
+      google.protobuf.Duration time = 4;
+    }
+    TimingBreakdown timing_breakdown = 4;
+
+    message ResourceUsage {
+      string name = 1;
+      int64 value = 2;
+    }
+    repeated ResourceUsage resource_usage = 5;
+  }
+  ExecutionInfo execution_info = 8;
+}
+
+// Event payload providing information about an active, individual test run.
+message TestProgress {
+  // Identifies a resource that may provide information about an active test
+  // run. The resource is not necessarily a file and may need to be queried
+  // for information. The URI is not guaranteed to be available after the test
+  // completes. The string is encoded according to RFC2396.
+  string uri = 1;
+}
+
+// Payload of the event summarizing a test.
+message TestSummary {
+  // Wrapper around BlazeTestStatus to support importing that enum to proto3.
+  // Overall status of test, accumulated over all runs, shards, and attempts.
+  TestStatus overall_status = 5;
+
+  // Total number of shard attempts.
+  // E.g., if a target has 4 runs, 3 shards, each with 2 attempts,
+  // then total_run_count will be 4*3*2 = 24.
+  int32 total_run_count = 1;
+
+  // Value of runs_per_test for the test.
+  int32 run_count = 10;
+
+  // Number of attempts.
+  // If there are a different number of attempts per shard, the highest attempt
+  // count across all shards for each run is used.
+  int32 attempt_count = 15;
+
+  // Number of shards.
+  int32 shard_count = 11;
+
+  // Path to logs of passed runs.
+  repeated File passed = 3;
+
+  // Path to logs of failed runs;
+  repeated File failed = 4;
+
+  // Total number of cached test actions
+  int32 total_num_cached = 6;
+
+  // When the test first started running.
+  //
+  // Deprecated, use `first_start_time` instead.
+  //
+  // TODO(yannic): Remove.
+  int64 first_start_time_millis = 7 [deprecated = true];
+
+  // When the test first started running.
+  google.protobuf.Timestamp first_start_time = 13;
+
+  // When the last test action completed.
+  //
+  // Deprecated, use `last_stop_time` instead.
+  //
+  // TODO(yannic): Remove.
+  int64 last_stop_time_millis = 8 [deprecated = true];
+
+  // When the test first started running.
+  google.protobuf.Timestamp last_stop_time = 14;
+
+  // The total runtime of the test.
+  //
+  // Deprecated, use `total_run` instead.
+  //
+  // TODO(yannic): Remove.
+  int64 total_run_duration_millis = 9 [deprecated = true];
+
+  // The total runtime of the test.
+  google.protobuf.Duration total_run_duration = 12;
+}
+
+// Payload of the event summarizing a target (test or non-test).
+message TargetSummary {
+  // Conjunction of TargetComplete events for this target, including aspects.
+  bool overall_build_success = 1;
+
+  // Repeats TestSummary's overall_status if available.
+  TestStatus overall_test_status = 2;
+}
+
+// Event indicating the end of a build.
+message BuildFinished {
+  // Exit code of a build. The possible values correspond to the predefined
+  // codes in bazel's lib.ExitCode class, as well as any custom exit code a
+  // module might define. The predefined exit codes are subject to change (but
+  // rarely do) and are not part of the public API.
+  //
+  // A build was successful iff ExitCode.code equals 0.
+  message ExitCode {
+    // The name of the exit code.
+    string name = 1;
+
+    // The exit code.
+    int32 code = 2;
+  }
+
+  // Things that happened during the build that could be of interest.
+  message AnomalyReport {
+    // Was the build suspended at any time during the build.
+    // Examples of suspensions are SIGSTOP, or the hardware being put to sleep.
+    // If was_suspended is true, then most of the timings for this build are
+    // suspect.
+    // NOTE: This is no longer set and is deprecated.
+    bool was_suspended = 1;
+  }
+
+  // If the build succeeded or failed.
+  bool overall_success = 1 [deprecated = true];
+
+  // The overall status of the build. A build was successful iff
+  // ExitCode.code equals 0.
+  ExitCode exit_code = 3;
+
+  // End of the build in ms since the epoch.
+  //
+  // Deprecated, use `finish_time` instead.
+  //
+  // TODO(yannic): Remove.
+  int64 finish_time_millis = 2 [deprecated = true];
+
+  // End of the build.
+  google.protobuf.Timestamp finish_time = 5;
+
+  AnomalyReport anomaly_report = 4 [deprecated = true];
+
+  // Only populated if success = false, and sometimes not even then.
+  failure_details.FailureDetail failure_detail = 6;
+}
+
+message BuildMetrics {
+  message ActionSummary {
+    // The total number of actions created and registered during the build,
+    // including both aspects and configured targets. This metric includes
+    // unused actions that were constructed but not executed during this build.
+    // It does not include actions that were created on prior builds that are
+    // still valid, even if those actions had to be re-executed on this build.
+    // For the total number of actions that would be created if this invocation
+    // were "clean", see BuildGraphMetrics below.
+    int64 actions_created = 1;
+
+    // The total number of actions created this build just by configured
+    // targets. Used mainly to allow consumers of actions_created, which used to
+    // not include aspects' actions, to normalize across the Blaze release that
+    // switched actions_created to include all created actions.
+    int64 actions_created_not_including_aspects = 3;
+
+    // The total number of actions executed during the build. This includes any
+    // remote cache hits, but excludes local action cache hits.
+    int64 actions_executed = 2;
+
+    message ActionData {
+      string mnemonic = 1;
+
+      // The total number of actions of this type executed during the build. As
+      // above, includes remote cache hits but excludes local action cache hits.
+      int64 actions_executed = 2;
+
+      // When the first action of this type started being executed, in
+      // milliseconds from the epoch.
+      int64 first_started_ms = 3;
+
+      // When the last action of this type ended being executed, in
+      // milliseconds from the epoch.
+      int64 last_ended_ms = 4;
+
+      // Accumulated CPU time of all spawned actions of this type.
+      // This is only set if all the actions reported a time
+      google.protobuf.Duration system_time = 5;
+      google.protobuf.Duration user_time = 6;
+
+      // The total number of actions of this type registered during the build.
+      int64 actions_created = 7;
+    }
+    // Contains the top N actions by number of actions executed.
+    repeated ActionData action_data = 4;
+
+    // Deprecated. The total number of remote cache hits.
+    int64 remote_cache_hits = 5 [deprecated = true];
+
+    message RunnerCount {
+      string name = 1;
+      int32 count = 2;
+      string exec_kind = 3;
+    }
+    repeated RunnerCount runner_count = 6;
+
+    blaze.ActionCacheStatistics action_cache_statistics = 7;
+  }
+  ActionSummary action_summary = 1;
+
+  message MemoryMetrics {
+    // Size of the JVM heap post build in bytes. This is only collected if
+    // --memory_profile is set, since it forces a full GC.
+    int64 used_heap_size_post_build = 1;
+
+    // Size of the peak JVM heap size in bytes post GC. Note that this reports 0
+    // if there was no major GC during the build.
+    int64 peak_post_gc_heap_size = 2;
+
+    // Size of the peak tenured space JVM heap size event in bytes post GC. Note
+    // that this reports 0 if there was no major GC during the build.
+    int64 peak_post_gc_tenured_space_heap_size = 4;
+
+    message GarbageMetrics {
+      // Type of garbage collected, e.g. G1 Old Gen.
+      string type = 1;
+      // Number of bytes of garbage of the given type collected during this
+      // invocation.
+      int64 garbage_collected = 2;
+    }
+
+    repeated GarbageMetrics garbage_metrics = 3;
+  }
+  MemoryMetrics memory_metrics = 2;
+
+  message TargetMetrics {
+    // DEPRECATED
+    // No longer populated. It never measured what it was supposed to (targets
+    // loaded): it counted targets that were analyzed even if the underlying
+    // package had not changed.
+    // TODO(janakr): rename and remove.
+    int64 targets_loaded = 1;
+
+    // Number of targets/aspects configured during this build. Does not include
+    // targets/aspects that were configured on prior builds on this server and
+    // were cached. See BuildGraphMetrics below if you need that.
+    int64 targets_configured = 2;
+
+    // Number of configured targets analyzed during this build. Does not include
+    // aspects. Used mainly to allow consumers of targets_configured, which used
+    // to not include aspects, to normalize across the Blaze release that
+    // switched targets_configured to include aspects.
+    int64 targets_configured_not_including_aspects = 3;
+  }
+  TargetMetrics target_metrics = 3;
+
+  message PackageMetrics {
+    // Number of BUILD files (aka packages) successfully loaded during this
+    // build.
+    //
+    // [For Bazel binaries built at source states] Before Dec 2021, this value
+    // was the number of packages attempted to be loaded, for a particular
+    // definition of "attempted".
+    //
+    // After Dec 2021, this value would sometimes overcount because the same
+    // package could sometimes be attempted to be loaded multiple times due to
+    // memory pressure.
+    //
+    // After Feb 2022, this value is the number of packages successfully
+    // loaded.
+    int64 packages_loaded = 1;
+
+    // Loading time metrics per package.
+    repeated devtools.build.lib.packages.metrics.PackageLoadMetrics
+        package_load_metrics = 2;
+  }
+  PackageMetrics package_metrics = 4;
+
+  message TimingMetrics {
+    // For Skymeld, it's possible that
+    // analysis_phase_time_in_ms + execution_phase_time_in_ms >= wall_time_in_ms
+    //
+    // The CPU time in milliseconds consumed during this build.
+    int64 cpu_time_in_ms = 1;
+    // The elapsed wall time in milliseconds during this build.
+    int64 wall_time_in_ms = 2;
+    // The elapsed wall time in milliseconds during the analysis phase.
+    // When analysis and execution phases are interleaved, this measures the
+    // elapsed time from the first analysis work to the last.
+    int64 analysis_phase_time_in_ms = 3;
+    // The elapsed wall time in milliseconds during the execution phase.
+    // When analysis and execution phases are interleaved, this measures the
+    // elapsed time from the first action execution (excluding workspace status
+    // actions) to the last.
+    int64 execution_phase_time_in_ms = 4;
+
+    // The elapsed wall time in milliseconds until the first action execution
+    // started (excluding workspace status actions).
+    int64 actions_execution_start_in_ms = 5;
+  }
+  TimingMetrics timing_metrics = 5;
+
+  message CumulativeMetrics {
+    // One-indexed number of "analyses" the server has run, including the
+    // current one. Will be incremented for every build/test/cquery/etc. command
+    // that reaches the analysis phase.
+    int32 num_analyses = 11;
+    // One-indexed number of "builds" the server has run, including the current
+    // one. Will be incremented for every build/test/run/etc. command that
+    // reaches the execution phase.
+    int32 num_builds = 12;
+  }
+
+  CumulativeMetrics cumulative_metrics = 6;
+
+  message ArtifactMetrics {
+    reserved 1;
+
+    message FilesMetric {
+      int64 size_in_bytes = 1;
+      int32 count = 2;
+    }
+
+    // Measures all source files newly read this build. Does not include
+    // unchanged sources on incremental builds.
+    FilesMetric source_artifacts_read = 2;
+    // Measures all output artifacts from executed actions. This includes
+    // actions that were cached locally (via the action cache) or remotely (via
+    // a remote cache or executor), but does *not* include outputs of actions
+    // that were cached internally in Skyframe.
+    FilesMetric output_artifacts_seen = 3;
+    // Measures all output artifacts from actions that were cached locally
+    // via the action cache. These artifacts were already present on disk at the
+    // start of the build. Does not include Skyframe-cached actions' outputs.
+    FilesMetric output_artifacts_from_action_cache = 4;
+    // Measures all artifacts that belong to a top-level output group. Does not
+    // deduplicate, so if there are two top-level targets in this build that
+    // share an artifact, it will be counted twice.
+    FilesMetric top_level_artifacts = 5;
+  }
+
+  ArtifactMetrics artifact_metrics = 7;
+
+  // Data about the evaluation of Skyfunctions.
+  message EvaluationStat {
+    // Name of the Skyfunction.
+    string skyfunction_name = 1;
+    // How many times a given operation was carried out on a Skyfunction.
+    int64 count = 2;
+  }
+
+  // Information about the size and shape of the build graph. Some fields may
+  // not be populated if Bazel was able to skip steps due to caching.
+  message BuildGraphMetrics {
+    // How many configured targets/aspects were in this build, including any
+    // that were analyzed on a prior build and are still valid. May not be
+    // populated if analysis phase was fully cached. Note: for historical
+    // reasons this includes input/output files and other configured targets
+    // that do not actually have associated actions.
+    int32 action_lookup_value_count = 1;
+    // How many configured targets alone were in this build: always at most
+    // action_lookup_value_count. Useful mainly for historical comparisons to
+    // TargetMetrics.targets_configured, which used to not count aspects. This
+    // also includes configured targets that do not have associated actions.
+    int32 action_lookup_value_count_not_including_aspects = 5;
+    // How many actions belonged to the configured targets/aspects above. It may
+    // not be necessary to execute all of these actions to build the requested
+    // targets. May not be populated if analysis phase was fully cached.
+    int32 action_count = 2;
+    // How many actions belonged to configured targets: always at most
+    // action_count. Useful mainly for historical comparisons to
+    // ActionMetrics.actions_created, which used to not count aspects' actions.
+    int32 action_count_not_including_aspects = 6;
+    // How many "input file" configured targets there were: one per source file.
+    // Should agree with artifact_metrics.source_artifacts_read.count above,
+    int32 input_file_configured_target_count = 7;
+    // How many "output file" configured targets there were: output files that
+    // are targets (not implicit outputs).
+    int32 output_file_configured_target_count = 8;
+    // How many "other" configured targets there were (like alias,
+    // package_group, and other non-rule non-file configured targets).
+    int32 other_configured_target_count = 9;
+    // How many artifacts are outputs of the above actions. May not be populated
+    // if analysis phase was fully cached.
+    int32 output_artifact_count = 3;
+    // How many Skyframe nodes there are in memory at the end of the build. This
+    // may underestimate the number of nodes when running with memory-saving
+    // settings or with Skybuild, and may overestimate if there are nodes from
+    // prior evaluations still in the cache.
+    int32 post_invocation_skyframe_node_count = 4;
+    // Number of SkyValues that were dirtied during the build. Dirtied nodes are
+    // those that transitively depend on a node that changed by itself (e.g. one
+    // representing a file in the file system)
+    repeated EvaluationStat dirtied_values = 10;
+    // Number of SkyValues that changed by themselves. For example, when a file
+    // on the file system changes, the SkyValue representing it will change.
+    repeated EvaluationStat changed_values = 11;
+    // Number of SkyValues that were built. This means that they were evaluated
+    // and were found to have changed from their previous version.
+    repeated EvaluationStat built_values = 12;
+    // Number of SkyValues that were evaluated and found clean, i.e. equal to
+    // their previous version.
+    repeated EvaluationStat cleaned_values = 13;
+    // Number of evaluations to build SkyValues. This includes restarted
+    // evaluations, which means there can be multiple evaluations per built
+    // SkyValue. Subtract built_values from this number to get the number of
+    // restarted evaluations.
+    repeated EvaluationStat evaluated_values = 17;
+
+    // For SkyKeys in 'done values' where the SkyValue is of type
+    // RuleConfiguredTargetValue, we pull those out separately and report the
+    // ruleClass and action count.
+    message RuleClassCount {
+      // Unique key for the rule class.
+      string key = 1;
+
+      // String name of the rule_class (not guaranteed unique)
+      string rule_class = 2;
+
+      // how many rule instances of this type were seen.
+      uint64 count = 3;
+
+      // how many actions were created by this rule class.
+      uint64 action_count = 4;
+    }
+    repeated RuleClassCount rule_class = 14;
+
+    // For SkyKeys whose function name is ASPECT break out that information
+    message AspectCount {
+      // Unique key for Aspect.
+      string key = 1;
+
+      // usually the same as above, but can differ in some cases.
+      string aspect_name = 2;
+
+      // number of aspects created of this type.
+      uint64 count = 3;
+
+      // number of actions created by aspects of this type.
+      uint64 action_count = 4;
+    }
+    repeated AspectCount aspect = 15;
+
+    // Removed due to overlap with EvaluationStat
+    reserved 16;
+  }
+
+  BuildGraphMetrics build_graph_metrics = 8;
+
+  // Information about all workers that were alive during the invocation.
+  message WorkerMetrics {
+    // Deprecated. Use worker_ids instead of this field.
+    int32 worker_id = 1 [deprecated = true];
+
+    // Ids of workers. Could be multiple in case of multiplex workers
+    repeated uint32 worker_ids = 8;
+    // Worker process id. If there is no process for worker, equals to zero.
+    uint32 process_id = 2;
+    // Mnemonic of running worker.
+    string mnemonic = 3;
+    // Multiplex or singleplex worker.
+    bool is_multiplex = 4;
+    // Using worker sandbox file system or not.
+    bool is_sandbox = 5;
+    // TODO(b/300067854): Deprecate since all worker metrics should have their
+    // WorkerStats set.
+    bool is_measurable = 6;
+    // Hash value of worker key. Needed to distinguish worker pools with same
+    // menmonic but with different worker keys.
+    int64 worker_key_hash = 9;
+
+    WorkerStatus worker_status = 10;
+
+    enum WorkerStatus {
+      // Used to indicate a worker instance where the process has not been
+      // created yet. In reality this isn't logged, but leaving this here as a
+      // possible option in the future.
+      NOT_STARTED = 0;
+      ALIVE = 1;
+      KILLED_DUE_TO_MEMORY_PRESSURE = 2;
+      // Indicates that the worker process was killed due to a reason unknown to
+      // Bazel at the point of measurement; if a known cause (below) comes along
+      // later on, this field will be updated.
+      KILLED_UNKNOWN = 3;
+      KILLED_DUE_TO_INTERRUPTED_EXCEPTION = 4;
+      KILLED_DUE_TO_IO_EXCEPTION = 5;
+      KILLED_DUE_TO_USER_EXEC_EXCEPTION = 6;
+    }
+
+    optional failure_details.Worker.Code code = 12;
+
+    int64 actions_executed = 11;
+
+    int64 prior_actions_executed = 13;
+
+    // Information collected from worker at some point.
+    message WorkerStats {
+      // Epoch unix time of collection of metrics.
+      int64 collect_time_in_ms = 1;
+      // Memory usage of worker process at the end of the build.
+      int32 worker_memory_in_kb = 2;
+      // Memory usage of the worker process prior to the invocation.
+      int32 prior_worker_memory_in_kb = 4;
+      // Epoch unix time of last action started on specific worker.
+      int64 last_action_start_time_in_ms = 3;
+    }
+
+    // Combined workers statistics.
+    repeated WorkerStats worker_stats = 7;
+  }
+
+  repeated WorkerMetrics worker_metrics = 9;
+
+  // Information about host network.
+  message NetworkMetrics {
+    // Information for all the network traffic going on on the host machine
+    // during the invocation.
+    message SystemNetworkStats {
+      // Total bytes sent during the invocation.
+      uint64 bytes_sent = 1;
+      // Total bytes received during the invocation.
+      uint64 bytes_recv = 2;
+      // Total packets sent during the invocation.
+      uint64 packets_sent = 3;
+      // Total packets received during the invocation.
+      uint64 packets_recv = 4;
+      // Peak bytes/sec sent during the invocation.
+      uint64 peak_bytes_sent_per_sec = 5;
+      // Peak bytes/sec received during the invocation.
+      uint64 peak_bytes_recv_per_sec = 6;
+      // Peak packets/sec sent during the invocation.
+      uint64 peak_packets_sent_per_sec = 7;
+      // Peak packets/sec received during the invocation.
+      uint64 peak_packets_recv_per_sec = 8;
+    }
+
+    SystemNetworkStats system_network_stats = 1;
+  }
+
+  NetworkMetrics network_metrics = 10;
+
+  // Information about worker pool actions.
+  message WorkerPoolMetrics {
+    // Statistics of worker pool per worker pool hash. Basically it's a map from
+    // worker pool hash to statistics.
+    repeated WorkerPoolStats worker_pool_stats = 1;
+
+    message WorkerPoolStats {
+      // Hash of worker pool these stats are for. Contains information about
+      // startup flags.
+      int32 hash = 1;
+      // Mnemonic of workers these stats are for.
+      string mnemonic = 2;
+      // Number of workers created during a build.
+      int64 created_count = 3;
+      // Number of workers destroyed during a build (sum of all workers
+      // destroyed by eviction, UserExecException, IoException,
+      // InterruptedException and unknown reasons below).
+      int64 destroyed_count = 4;
+      // Number of workers evicted during a build.
+      int64 evicted_count = 5;
+      // Number of workers destroyed due to UserExecExceptions.
+      int64 user_exec_exception_destroyed_count = 6;
+      // Number of workers destroyed due to IoExceptions.
+      int64 io_exception_destroyed_count = 7;
+      // Number of workers destroyed due to InterruptedExceptions.
+      int64 interrupted_exception_destroyed_count = 8;
+      // Number of workers destroyed due to an unknown reason.
+      int64 unknown_destroyed_count = 9;
+      // Number of workers alive at the end of the build.
+      int64 alive_count = 10;
+    }
+  }
+
+  WorkerPoolMetrics worker_pool_metrics = 11;
+
+  // Information about dynamic execution.
+  message DynamicExecutionMetrics {
+    message RaceStatistics {
+      // Mnemonic of the action.
+      string mnemonic = 1;
+      // Name of runner of local branch.
+      string local_runner = 2;
+      // Name of runner of remote branch.
+      string remote_runner = 3;
+      // Number of wins of local branch in race.
+      int32 local_wins = 4;
+      // Number of wins of remote branch in race.
+      int32 remote_wins = 5;
+    }
+    // Race statistics grouped by mnemonic, local_name, remote_name.
+    repeated RaceStatistics race_statistics = 1;
+  }
+
+  DynamicExecutionMetrics dynamic_execution_metrics = 12;
+}
+
+// Event providing additional statistics/logs after completion of the build.
+message BuildToolLogs {
+  repeated File log = 1;
+}
+
+// Event describing all convenience symlinks (i.e., workspace symlinks) to be
+// created or deleted once the execution phase has begun. Note that this event
+// does not say anything about whether or not the build tool actually executed
+// these filesystem operations; it only says what logical operations should be
+// performed. This event is emitted exactly once per build; if no symlinks are
+// to be modified, the event is still emitted with empty contents.
+message ConvenienceSymlinksIdentified {
+  repeated ConvenienceSymlink convenience_symlinks = 1;
+}
+
+// The message that contains what type of action to perform on a given path and
+// target of a symlink.
+message ConvenienceSymlink {
+  enum Action {
+    UNKNOWN = 0;
+
+    // Indicates a symlink should be created, or overwritten if it already
+    // exists.
+    CREATE = 1;
+
+    // Indicates a symlink should be deleted if it already exists.
+    DELETE = 2;
+  }
+
+  // The path of the symlink to be created or deleted, absolute or relative to
+  // the workspace, creating any directories necessary. If a symlink already
+  // exists at that location, then it should be replaced by a symlink pointing
+  // to the new target.
+  string path = 1;
+
+  // The operation we are performing on the symlink.
+  Action action = 2;
+
+  // If action is CREATE, this is the target path (relative to the output base)
+  // that the symlink should point to.
+  //
+  // If action is DELETE, this field is not set.
+  string target = 3;
+}
+
+// Event that contains the ExecRequest of a run command announced only after a
+// successful build and before trying to execute the requested command-line.
+message ExecRequestConstructed {
+  bytes working_directory = 1;
+  repeated bytes argv = 2;
+  repeated EnvironmentVariable environment_variable = 3;
+  repeated bytes environment_variable_to_clear = 4;
+  bool should_exec = 5;
+}
+
+// An environment variable provided by a run command after a successful build.
+message EnvironmentVariable {
+  bytes name = 1;
+  bytes value = 2;
+}
+
+// Message describing a build event. Events will have an identifier that
+// is unique within a given build invocation; they also announce follow-up
+// events as children. More details, which are specific to the kind of event
+// that is observed, is provided in the payload. More options for the payload
+// might be added in the future.
+message BuildEvent {
+  reserved 11, 19;
+  BuildEventId id = 1;
+  repeated BuildEventId children = 2;
+  bool last_message = 20;
+  oneof payload {
+    Progress progress = 3;
+    Aborted aborted = 4;
+    BuildStarted started = 5;
+    UnstructuredCommandLine unstructured_command_line = 12;
+    command_line.CommandLine structured_command_line = 22;
+    OptionsParsed options_parsed = 13;
+    WorkspaceStatus workspace_status = 16;
+    Fetch fetch = 21;
+    Configuration configuration = 17;
+    PatternExpanded expanded = 6;
+    TargetConfigured configured = 18;
+    ActionExecuted action = 7;
+    NamedSetOfFiles named_set_of_files = 15;
+    TargetComplete completed = 8;
+    TestResult test_result = 10;
+    TestProgress test_progress = 30;
+    TestSummary test_summary = 9;
+    TargetSummary target_summary = 28;
+    BuildFinished finished = 14;
+    BuildToolLogs build_tool_logs = 23;
+    BuildMetrics build_metrics = 24;
+    WorkspaceConfig workspace_info = 25;
+    BuildMetadata build_metadata = 26;
+    ConvenienceSymlinksIdentified convenience_symlinks_identified = 27;
+    ExecRequestConstructed exec_request = 29;
+  }
+}
diff --git a/nativelink-proto/src/main/java/com/google/devtools/build/lib/packages/metrics/package_load_metrics.proto b/nativelink-proto/src/main/java/com/google/devtools/build/lib/packages/metrics/package_load_metrics.proto
new file mode 100644
index 000000000..e27ecceaf
--- /dev/null
+++ b/nativelink-proto/src/main/java/com/google/devtools/build/lib/packages/metrics/package_load_metrics.proto
@@ -0,0 +1,44 @@
+// Copyright 2020 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+syntax = "proto2";
+
+package devtools.build.lib.packages.metrics;
+
+import "google/protobuf/duration.proto";
+
+option java_package = "com.google.devtools.build.lib.packages.metrics";
+option java_multiple_files = true;
+
+// Message used to concisely report all package metrics.
+message PackageLoadMetrics {
+  // Name of the package.
+  optional string name = 1;
+
+  // Wall-time duration it took to construct the package.
+  optional google.protobuf.Duration load_duration = 2;
+
+  // Number of targets created in the package.
+  optional uint64 num_targets = 3;
+
+  // Number of Starlark computation steps required to create the package.
+  optional uint64 computation_steps = 4;
+
+  // Number of transitive Starlark load()s required to create the package.
+  optional uint64 num_transitive_loads = 5;
+
+  // Numeric value given to the memory and general accounting costs associated
+  // with a loaded package. Values are an approximate but reasonable proxy for
+  // the real storage costs of a package.
+  optional uint64 package_overhead = 6;
+}
diff --git a/nativelink-proto/src/main/protobuf/action_cache.proto b/nativelink-proto/src/main/protobuf/action_cache.proto
new file mode 100644
index 000000000..a31cba599
--- /dev/null
+++ b/nativelink-proto/src/main/protobuf/action_cache.proto
@@ -0,0 +1,63 @@
+// Copyright 2017 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package blaze;
+
+option java_package = "com.google.devtools.build.lib.actions.cache";
+option java_outer_classname = "Protos";
+
+// Information about the action cache behavior during a single build.
+message ActionCacheStatistics {
+  // Size of the action cache in bytes.
+  //
+  // This is computed by the code that persists the action cache to disk and
+  // represents the size of the written files, which has no direct relation to
+  // the number of entries in the cache.
+  uint64 size_in_bytes = 1;
+
+  // Time it took to save the action cache to disk.
+  uint64 save_time_in_ms = 2;
+
+  // Reasons for not finding an action in the cache.
+  enum MissReason {
+    DIFFERENT_ACTION_KEY = 0;
+    DIFFERENT_DEPS = 1;
+    DIFFERENT_ENVIRONMENT = 2;
+    DIFFERENT_FILES = 3;
+    CORRUPTED_CACHE_ENTRY = 4;
+    NOT_CACHED = 5;
+    UNCONDITIONAL_EXECUTION = 6;
+  }
+
+  // Detailed information for a particular miss reason.
+  message MissDetail {
+    MissReason reason = 1;
+    int32 count = 2;
+  }
+
+  // Cache counters.
+  int32 hits = 3;
+  int32 misses = 4;
+
+  // Breakdown of the cache misses based on the reasons behind them.
+  repeated MissDetail miss_details = 5;
+
+  // Time it took to load the action cache from disk. Reported as 0 if the
+  // action cache has not been loaded in this invocation.
+  uint64 load_time_in_ms = 6;
+
+  // NEXT TAG: 7
+}
diff --git a/nativelink-proto/src/main/protobuf/command_line.proto b/nativelink-proto/src/main/protobuf/command_line.proto
new file mode 100644
index 000000000..d5fa6aceb
--- /dev/null
+++ b/nativelink-proto/src/main/protobuf/command_line.proto
@@ -0,0 +1,102 @@
+// Copyright 2017 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+package command_line;
+
+// option java_api_version = 2;
+option java_package = "com.google.devtools.build.lib.runtime.proto";
+
+import "src/main/protobuf/option_filters.proto";
+
+// Representation of a Bazel command line.
+message CommandLine {
+  // A title for this command line value, to differentiate it from others.
+  // In particular, a single invocation may wish to report both the literal and
+  // canonical command lines, and this label would be used to differentiate
+  // between both versions. This is a string for flexibility.
+  string command_line_label = 1;
+
+  // A Bazel command line is made of distinct parts. For example,
+  //    `bazel --nomaster_bazelrc test --nocache_test_results //foo:aTest`
+  // has the executable "bazel", a startup flag, a command "test", a command
+  // flag, and a test target. There could be many more flags and targets, or
+  // none (`bazel info` for example), but the basic structure is there. The
+  // command line should be broken down into these logical sections here.
+  repeated CommandLineSection sections = 2;
+}
+
+// A section of the Bazel command line.
+message CommandLineSection {
+  // The name of this section, such as "startup_option" or "command".
+  string section_label = 1;
+
+  oneof section_type {
+    // Sections with non-options, such as the list of targets or the command,
+    // should use simple string chunks.
+    ChunkList chunk_list = 2;
+
+    // Startup and command options are lists of options and belong here.
+    OptionList option_list = 3;
+  }
+}
+
+// Wrapper to allow a list of strings in the "oneof" section_type.
+message ChunkList {
+  repeated string chunk = 1;
+}
+
+// Wrapper to allow a list of options in the "oneof" section_type.
+message OptionList {
+  repeated Option option = 1;
+}
+
+// A single command line option.
+//
+// This represents the option itself, but does not take into account the type of
+// option or how the parser interpreted it. If this option is part of a command
+// line that represents the actual input that Bazel received, it would, for
+// example, include expansion flags as they are. However, if this option
+// represents the canonical form of the command line, with the values as Bazel
+// understands them, then the expansion flag, which has no value, would not
+// appear, and the flags it expands to would.
+message Option {
+  // How the option looks with the option and its value combined. Depending on
+  // the purpose of this command line report, this could be the canonical
+  // form, or the way that the flag was set.
+  //
+  // Some examples: this might be `--foo=bar` form, or `--foo bar` with a space;
+  // for boolean flags, `--nobaz` is accepted on top of `--baz=false` and other
+  // negating values, or for a positive value, the unqualified `--baz` form
+  // is also accepted. This could also be a short `-b`, if the flag has an
+  // abbreviated form.
+  string combined_form = 1;
+
+  // The canonical name of the option, without the preceding dashes.
+  string option_name = 2;
+
+  // The value of the flag, or unset for flags that do not take values.
+  // Especially for boolean flags, this should be in canonical form, the
+  // combined_form field above gives room for showing the flag as it was set
+  // if that is preferred.
+  string option_value = 3;
+
+  // This flag's tagged effects. See OptionEffectTag's java documentation for
+  // details.
+  repeated options.OptionEffectTag effect_tags = 4;
+
+  // Metadata about the flag. See OptionMetadataTag's java documentation for
+  // details.
+  repeated options.OptionMetadataTag metadata_tags = 5;
+}
diff --git a/nativelink-proto/src/main/protobuf/failure_details.proto b/nativelink-proto/src/main/protobuf/failure_details.proto
new file mode 100644
index 000000000..7df8ca4ea
--- /dev/null
+++ b/nativelink-proto/src/main/protobuf/failure_details.proto
@@ -0,0 +1,1378 @@
+// Copyright 2020 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This file's messages describe any failure(s) that occurred during Bazel's
+// handling of a request. The intent is to provide more detail to a Bazel client
+// than is conveyed with an exit code, to help those clients decide how to
+// respond to, or classify, a failure.
+
+syntax = "proto3";
+
+package failure_details;
+
+option java_package = "com.google.devtools.build.lib.server";
+
+import "google/protobuf/descriptor.proto";
+
+message FailureDetailMetadata {
+  uint32 exit_code = 1;
+}
+
+  extend google.protobuf.EnumValueOptions {
+  FailureDetailMetadata metadata = 1078;
+}
+
+// The FailureDetail message type is designed such that consumers can extract a
+// basic classification of a FailureDetail message even if the consumer was
+// built with a stale definition. This forward compatibility is implemented via
+// conventions on FailureDetail and its submessage types, as follows.
+//
+// *** FailureDetail field numbers
+//
+// Field numbers 1 through 100 (inclusive) are reserved for generally applicable
+// values. Any number of these fields may be set on a FailureDetail message.
+//
+// Field numbers 101 through 10,000 (inclusive) are reserved for use inside the
+// "oneof" structure. Only one of these values should be set on a FailureDetail
+// message.
+//
+// Additional fields numbers are unlikely to be needed, but, for extreme future-
+// proofing purposes, field numbers 10,001 through 1,000,000 (inclusive;
+// excluding protobuf's reserved range 19000 through 19999) are reserved for
+// additional generally applicable values.
+//
+// *** FailureDetail's "oneof" submessages
+//
+// Each field in the "oneof" structure is a submessage corresponding to a
+// category of failure.
+//
+// In each of these submessage types, field number 1 is an enum whose values
+// correspond to a subcategory of the failure. Generally, the enum's constant
+// which maps to 0 should be interpreted as "unspecified", though this is not
+// required.
+//
+// *** Recommended forward compatibility strategy
+//
+// The recommended forward compatibility strategy is to reduce a FailureDetail
+// message to a pair of integers.
+//
+// The first integer corresponds to the field number of the submessage set
+// inside FailureDetail's "oneof", which corresponds with the failure's
+// category.
+//
+// The second integer corresponds to the value of the enum at field number 1
+// within that submessage, which corresponds with the failure's subcategory.
+//
+// WARNING: This functionality is experimental and should not be relied on at
+// this time.
+// TODO(mschaller): remove experimental warning
+message FailureDetail {
+  // A short human-readable message describing the failure, for debugging.
+  //
+  // This value is *not* intended to be used algorithmically.
+  string message = 1;
+
+  // Reserved for future generally applicable values. Any of these may be set.
+  reserved 2 to 100;
+
+  oneof category {
+    Interrupted interrupted = 101;
+    ExternalRepository external_repository = 103;
+    BuildProgress build_progress = 104;
+    RemoteOptions remote_options = 106;
+    ClientEnvironment client_environment = 107;
+    Crash crash = 108;
+    SymlinkForest symlink_forest = 110;
+    PackageOptions package_options = 114;
+    RemoteExecution remote_execution = 115;
+    Execution execution = 116;
+    Workspaces workspaces = 117;
+    CrashOptions crash_options = 118;
+    Filesystem filesystem = 119;
+    ExecutionOptions execution_options = 121;
+    Command command = 122;
+    Spawn spawn = 123;
+    GrpcServer grpc_server = 124;
+    CanonicalizeFlags canonicalize_flags = 125;
+    BuildConfiguration build_configuration = 126;
+    InfoCommand info_command = 127;
+    MemoryOptions memory_options = 129;
+    Query query = 130;
+    LocalExecution local_execution = 132;
+    ActionCache action_cache = 134;
+    FetchCommand fetch_command = 135;
+    SyncCommand sync_command = 136;
+    Sandbox sandbox = 137;
+    IncludeScanning include_scanning = 139;
+    TestCommand test_command = 140;
+    ActionQuery action_query = 141;
+    TargetPatterns target_patterns = 142;
+    CleanCommand clean_command = 144;
+    ConfigCommand config_command = 145;
+    ConfigurableQuery configurable_query = 146;
+    DumpCommand dump_command = 147;
+    HelpCommand help_command = 148;
+    MobileInstall mobile_install = 150;
+    ProfileCommand profile_command = 151;
+    RunCommand run_command = 152;
+    VersionCommand version_command = 153;
+    PrintActionCommand print_action_command = 154;
+    WorkspaceStatus workspace_status = 158;
+    JavaCompile java_compile = 159;
+    ActionRewinding action_rewinding = 160;
+    CppCompile cpp_compile = 161;
+    StarlarkAction starlark_action = 162;
+    NinjaAction ninja_action = 163;
+    DynamicExecution dynamic_execution = 164;
+    FailAction fail_action = 166;
+    SymlinkAction symlink_action = 167;
+    CppLink cpp_link = 168;
+    LtoAction lto_action = 169;
+    TestAction test_action = 172;
+    Worker worker = 173;
+    Analysis analysis = 174;
+    PackageLoading package_loading = 175;
+    Toolchain toolchain = 177;
+    StarlarkLoading starlark_loading = 179;
+    ExternalDeps external_deps = 181;
+    DiffAwareness diff_awareness = 182;
+    ModCommand mod_command = 183;
+    BuildReport build_report = 184;
+    Skyfocus skyfocus = 185;
+    RemoteAnalysisCaching remote_analysis_caching = 186;
+  }
+
+  reserved 102; // For internal use
+  reserved 105; // For internal use
+  reserved 109; // For internal use
+  reserved 111 to 113; // For internal use
+  reserved 120; // For internal use
+  reserved 128; // For internal use
+  reserved 131; // For internal use
+  reserved 133; // For internal use
+  reserved 138; // For internal use
+  reserved 143; // For internal use
+  reserved 149; // For internal use
+  reserved 155 to 157; // For internal use
+  reserved 165; // For internal use
+  reserved 170 to 171; // For internal use
+  reserved 176; // For internal use
+  reserved 178; // For internal use
+  reserved 180; // For internal use
+}
+
+message Interrupted {
+  enum Code {
+    // Unknown interrupt. Avoid using this code, instead use INTERRUPTED.
+    INTERRUPTED_UNKNOWN = 0 [(metadata) = { exit_code: 8 }];
+
+    // Command was interrupted (cancelled).
+    INTERRUPTED = 28 [(metadata) = { exit_code: 8 }];
+
+    // The following more specific interrupt codes have been deprecated and
+    // consolidated into INTERRUPTED.
+    DEPRECATED_BUILD = 4 [(metadata) = { exit_code: 8 }];
+    DEPRECATED_BUILD_COMPLETION = 5 [(metadata) = { exit_code: 8 }];
+    DEPRECATED_PACKAGE_LOADING_SYNC = 6 [(metadata) = { exit_code: 8 }];
+    DEPRECATED_EXECUTOR_COMPLETION = 7 [(metadata) = { exit_code: 8 }];
+    DEPRECATED_COMMAND_DISPATCH = 8 [(metadata) = { exit_code: 8 }];
+    DEPRECATED_INFO_ITEM = 9 [(metadata) = { exit_code: 8 }];
+    DEPRECATED_AFTER_QUERY = 10 [(metadata) = { exit_code: 8 }];
+    DEPRECATED_FETCH_COMMAND = 17 [(metadata) = { exit_code: 8 }];
+    DEPRECATED_SYNC_COMMAND = 18 [(metadata) = { exit_code: 8 }];
+    DEPRECATED_CLEAN_COMMAND = 20 [(metadata) = { exit_code: 8 }];
+    DEPRECATED_MOBILE_INSTALL_COMMAND = 21 [(metadata) = { exit_code: 8 }];
+    DEPRECATED_QUERY = 22 [(metadata) = { exit_code: 8 }];
+    DEPRECATED_RUN_COMMAND = 23 [(metadata) = { exit_code: 8 }];
+    DEPRECATED_OPTIONS_PARSING = 27 [(metadata) = { exit_code: 8 }];
+
+    reserved 1 to 3; // For internal use
+    reserved 11 to 16; // For internal use
+    reserved 19; // For internal use
+    reserved 24 to 26; // For internal use
+  }
+
+  Code code = 1;
+}
+
+message Spawn {
+  enum Code {
+    SPAWN_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    // See the SpawnResult.Status Java enum for definitions of the following
+    // Spawn failure codes.
+    NON_ZERO_EXIT = 1 [(metadata) = { exit_code: 1 }];
+    TIMEOUT = 2 [(metadata) = { exit_code: 1 }];
+    // Note: Spawn OUT_OF_MEMORY leads to a BUILD_FAILURE exit_code because the
+    // build tool itself did not run out of memory.
+    OUT_OF_MEMORY = 3 [(metadata) = { exit_code: 1 }];
+    EXECUTION_FAILED = 4 [(metadata) = { exit_code: 34 }];
+    EXECUTION_DENIED = 5 [(metadata) = { exit_code: 1 }];
+    REMOTE_CACHE_FAILED = 6 [(metadata) = { exit_code: 34 }];
+    COMMAND_LINE_EXPANSION_FAILURE = 7 [(metadata) = { exit_code: 1 }];
+    EXEC_IO_EXCEPTION = 8 [(metadata) = { exit_code: 36 }];
+    INVALID_TIMEOUT = 9 [(metadata) = { exit_code: 1 }];
+    INVALID_REMOTE_EXECUTION_PROPERTIES = 10 [(metadata) = { exit_code: 1 }];
+    NO_USABLE_STRATEGY_FOUND = 11 [(metadata) = { exit_code: 1 }];
+    // TODO(b/138456686): this code should be deprecated when SpawnResult is
+    //   refactored to prohibit undetailed failures
+    UNSPECIFIED_EXECUTION_FAILURE = 12 [(metadata) = { exit_code: 1 }];
+    FORBIDDEN_INPUT = 13 [(metadata) = { exit_code: 1 }];
+    // This also includes other remote cache errors, not just evictions,
+    // if --incompatible_remote_use_new_exit_code_for_lost_inputs is set.
+    // TODO: Rename it to a more general name when
+    // --experimental_remote_cache_eviction_retries is moved to
+    // non-experimental.
+    REMOTE_CACHE_EVICTED = 14 [(metadata) = { exit_code: 39 }];
+    SPAWN_LOG_IO_EXCEPTION = 15 [(metadata) = { exit_code: 36 }];
+  }
+  Code code = 1;
+
+  // For Codes describing generic failure to spawn (eg. EXECUTION_FAILED and
+  // EXECUTION_DENIED) the `catastrophic` field may be set to true indicating a
+  // failure that immediately terminated the entire build tool.
+  bool catastrophic = 2;
+
+  // If Code is NON_ZERO_EXIT, the `spawn_exit_code` field may be set to the
+  // non-zero exit code returned by the spawned process to the OS.
+  //
+  // NOTE: This field must not be confused with the build tool's overall
+  // exit code.
+  int32 spawn_exit_code = 3;
+}
+
+message ExternalRepository {
+  enum Code {
+    EXTERNAL_REPOSITORY_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    OVERRIDE_DISALLOWED_MANAGED_DIRECTORIES = 1 [(metadata) = { exit_code: 2 }];
+    BAD_DOWNLOADER_CONFIG = 2 [(metadata) = { exit_code: 2 }];
+    REPOSITORY_MAPPING_RESOLUTION_FAILED = 3 [(metadata) = { exit_code: 37 }];
+    CREDENTIALS_INIT_FAILURE = 4 [(metadata) = { exit_code: 2 }];
+  }
+  Code code = 1;
+  // Additional data could include external repository names.
+}
+
+message BuildProgress {
+  enum Code {
+    BUILD_PROGRESS_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    OUTPUT_INITIALIZATION = 3 [(metadata) = { exit_code: 36 }];
+    BES_RUNS_PER_TEST_LIMIT_UNSUPPORTED = 4 [(metadata) = { exit_code: 2 }];
+    BES_LOCAL_WRITE_ERROR = 5 [(metadata) = { exit_code: 36 }];
+    BES_INITIALIZATION_ERROR = 6 [(metadata) = { exit_code: 36 }];
+    BES_UPLOAD_TIMEOUT_ERROR = 7 [(metadata) = { exit_code: 38 }];
+    BES_FILE_WRITE_TIMEOUT = 8 [(metadata) = { exit_code: 38 }];
+    BES_FILE_WRITE_IO_ERROR = 9 [(metadata) = { exit_code: 38 }];
+    BES_FILE_WRITE_INTERRUPTED = 10 [(metadata) = { exit_code: 38 }];
+    BES_FILE_WRITE_CANCELED = 11 [(metadata) = { exit_code: 38 }];
+    BES_FILE_WRITE_UNKNOWN_ERROR = 12 [(metadata) = { exit_code: 38 }];
+    BES_UPLOAD_LOCAL_FILE_ERROR = 13 [(metadata) = { exit_code: 38 }];
+    BES_STREAM_NOT_RETRYING_FAILURE = 14 [(metadata) = { exit_code: 45 }];
+    BES_STREAM_COMPLETED_WITH_UNACK_EVENTS_ERROR = 15
+        [(metadata) = { exit_code: 45 }];
+    BES_STREAM_COMPLETED_WITH_UNSENT_EVENTS_ERROR = 16
+        [(metadata) = { exit_code: 45 }];
+    BES_STREAM_COMPLETED_WITH_REMOTE_ERROR = 19
+        [(metadata) = { exit_code: 45 }];
+    BES_UPLOAD_RETRY_LIMIT_EXCEEDED_FAILURE = 17
+        [(metadata) = { exit_code: 38 }];
+    reserved 1, 2, 18, 20; // For internal use
+  }
+  Code code = 1;
+  // Additional data could include the build progress upload endpoint.
+}
+
+message RemoteOptions {
+  enum Code {
+    REMOTE_OPTIONS_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    REMOTE_DEFAULT_EXEC_PROPERTIES_LOGIC_ERROR = 1
+        [(metadata) = { exit_code: 2 }];
+    // Credentials could not be read from the requested file/socket/process/etc.
+    CREDENTIALS_READ_FAILURE = 2 [(metadata) = { exit_code: 36 }];
+    // Credentials could not be written to a shared, temporary file.
+    CREDENTIALS_WRITE_FAILURE = 3 [(metadata) = { exit_code: 36 }];
+    DOWNLOADER_WITHOUT_GRPC_CACHE = 4 [(metadata) = { exit_code: 2 }];
+    EXECUTION_WITH_INVALID_CACHE = 5 [(metadata) = { exit_code: 2 }];
+
+    reserved 6;
+  }
+
+  Code code = 1;
+}
+
+message ClientEnvironment {
+  enum Code {
+    CLIENT_ENVIRONMENT_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    CLIENT_CWD_MALFORMED = 1 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+message Crash {
+  enum Code {
+    CRASH_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    CRASH_OOM = 1 [(metadata) = { exit_code: 33 }];
+  }
+
+  Code code = 1;
+
+  // The cause chain of the crash, with the outermost throwable first. Limited
+  // to the outermost exception and at most 4 nested causes (so, max size of 5).
+  repeated Throwable causes = 2;
+
+  // True when the root cause of the crash was not an OutOfMemoryError, but
+  // CRASH_OOM was chosen because an OutOfMemoryError was detected prior to the
+  // crash.
+  bool oom_detector_override = 3;
+}
+
+message Throwable {
+  // The class name of the java.lang.Throwable.
+  string throwable_class = 1;
+  // The throwable's message.
+  string message = 2;
+  // The result of calling toString on the deepest (i.e. closest to the
+  // throwable's construction site) 1000 (or fewer) StackTraceElements.
+  // Unstructured to simplify string matching.
+  repeated string stack_trace = 3;
+}
+
+message SymlinkForest {
+  enum Code {
+    SYMLINK_FOREST_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    TOPLEVEL_OUTDIR_PACKAGE_PATH_CONFLICT = 1 [(metadata) = { exit_code: 2 }];
+    TOPLEVEL_OUTDIR_USED_AS_SOURCE = 2 [(metadata) = { exit_code: 2 }];
+    CREATION_FAILED = 3 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+message BuildReport {
+  enum Code {
+    BUILD_REPORT_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    BUILD_REPORT_UPLOADER_NEEDS_PACKAGE_PATHS = 1
+        [(metadata) = { exit_code: 36 }];
+    BUILD_REPORT_WRITE_FAILED = 2 [(metadata) = { exit_code: 36 }];
+  }
+
+  Code code = 1;
+  // Additional data for partial failures might include the build report that
+  // failed to be written.
+}
+
+// Failure details for errors produced when using Skyfocus
+message Skyfocus {
+  enum Code {
+    // The defined working set cannot be used for the focused targets. For
+    // example, this happens when the intersection of the working set and the
+    // transitive closure of the focused target is empty.
+    INVALID_WORKING_SET = 0 [(metadata) = { exit_code: 2 }];
+    // The user needs to augment their working set to include the new file(s).
+    NON_WORKING_SET_CHANGE = 1 [(metadata) = { exit_code: 2 }];
+    CONFIGURATION_CHANGE = 2 [(metadata) = { exit_code: 2 }];
+    DISALLOWED_OPERATION_ON_FOCUSED_GRAPH = 3 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+// Failure details for errors produced during remote analysis caching.
+message RemoteAnalysisCaching {
+  enum Code {
+    REMOTE_ANALYSIS_CACHING_UNKNOWN = 0 [(metadata) = { exit_code: 1 }];
+    SERIALIZED_FRONTIER_PROFILE_FAILED = 1 [(metadata) = { exit_code: 1 }];
+    PROJECT_FILE_NOT_FOUND = 2 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+message PackageOptions {
+  enum Code {
+    reserved 2, 3;  // For internal use
+
+    PACKAGE_OPTIONS_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    PACKAGE_PATH_INVALID = 1 [(metadata) = { exit_code: 2 }];
+    NONSINGLETON_PACKAGE_PATH = 4 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+message RemoteExecution {
+  // The association of some of these options with exit code 2, "command line
+  // error", seems sketchy. Especially worth reconsidering are the channel init
+  // failure modes, which can correspond to failures occurring in gRPC setup.
+  // These all correspond with current Bazel behavior.
+  enum Code {
+    REMOTE_EXECUTION_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    CAPABILITIES_QUERY_FAILURE = 1 [(metadata) = { exit_code: 34 }];
+    CREDENTIALS_INIT_FAILURE = 2 [(metadata) = { exit_code: 2 }];
+    CACHE_INIT_FAILURE = 3 [(metadata) = { exit_code: 2 }];
+    RPC_LOG_FAILURE = 4 [(metadata) = { exit_code: 2 }];
+    EXEC_CHANNEL_INIT_FAILURE = 5 [(metadata) = { exit_code: 2 }];
+    CACHE_CHANNEL_INIT_FAILURE = 6 [(metadata) = { exit_code: 2 }];
+    DOWNLOADER_CHANNEL_INIT_FAILURE = 7 [(metadata) = { exit_code: 2 }];
+    LOG_DIR_CLEANUP_FAILURE = 8 [(metadata) = { exit_code: 36 }];
+    CLIENT_SERVER_INCOMPATIBLE = 9 [(metadata) = { exit_code: 34 }];
+    DOWNLOADED_INPUTS_DELETION_FAILURE = 10 [(metadata) = { exit_code: 34 }];
+    REMOTE_DOWNLOAD_OUTPUTS_MINIMAL_WITHOUT_INMEMORY_DOTD = 11
+        [(metadata) = { exit_code: 2 }];
+    REMOTE_DOWNLOAD_OUTPUTS_MINIMAL_WITHOUT_INMEMORY_JDEPS = 12
+        [(metadata) = { exit_code: 2 }];
+    INCOMPLETE_OUTPUT_DOWNLOAD_CLEANUP_FAILURE = 13
+        [(metadata) = { exit_code: 36 }];
+    REMOTE_DEFAULT_PLATFORM_PROPERTIES_PARSE_FAILURE = 14
+        [(metadata) = { exit_code: 1 }];
+    ILLEGAL_OUTPUT = 15 [(metadata) = { exit_code: 1 }];
+    INVALID_EXEC_AND_PLATFORM_PROPERTIES = 16 [(metadata) = { exit_code: 1 }];
+    TOPLEVEL_OUTPUTS_DOWNLOAD_FAILURE = 17 [(metadata) = { exit_code: 34 }];
+  }
+
+  Code code = 1;
+}
+
+message Execution {
+  enum Code {
+    EXECUTION_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    EXECUTION_LOG_INITIALIZATION_FAILURE = 1 [(metadata) = { exit_code: 2 }];
+    EXECUTION_LOG_WRITE_FAILURE = 2 [(metadata) = { exit_code: 36 }];
+    EXECROOT_CREATION_FAILURE = 3 [(metadata) = { exit_code: 36 }];
+    TEMP_ACTION_OUTPUT_DIRECTORY_DELETION_FAILURE = 4
+        [(metadata) = { exit_code: 36 }];
+    TEMP_ACTION_OUTPUT_DIRECTORY_CREATION_FAILURE = 5
+        [(metadata) = { exit_code: 36 }];
+    PERSISTENT_ACTION_OUTPUT_DIRECTORY_CREATION_FAILURE = 6
+        [(metadata) = { exit_code: 36 }];
+    LOCAL_OUTPUT_DIRECTORY_SYMLINK_FAILURE = 7 [(metadata) = { exit_code: 36 }];
+    reserved 8;  // was ACTION_INPUT_FILES_MISSING, now mostly
+                 // SOURCE_INPUT_MISSING
+    LOCAL_TEMPLATE_EXPANSION_FAILURE = 9 [(metadata) = { exit_code: 36 }];
+    INPUT_DIRECTORY_CHECK_IO_EXCEPTION = 10 [(metadata) = { exit_code: 36 }];
+    EXTRA_ACTION_OUTPUT_CREATION_FAILURE = 11 [(metadata) = { exit_code: 36 }];
+    TEST_RUNNER_IO_EXCEPTION = 12 [(metadata) = { exit_code: 36 }];
+    FILE_WRITE_IO_EXCEPTION = 13 [(metadata) = { exit_code: 36 }];
+    TEST_OUT_ERR_IO_EXCEPTION = 14 [(metadata) = { exit_code: 36 }];
+    SYMLINK_TREE_MANIFEST_COPY_IO_EXCEPTION = 15
+        [(metadata) = { exit_code: 36 }];
+    SYMLINK_TREE_MANIFEST_LINK_IO_EXCEPTION = 16
+        [(metadata) = { exit_code: 36 }];
+    SYMLINK_TREE_CREATION_IO_EXCEPTION = 17 [(metadata) = { exit_code: 36 }];
+    SYMLINK_TREE_CREATION_COMMAND_EXCEPTION = 18
+        [(metadata) = { exit_code: 36 }];
+    ACTION_INPUT_READ_IO_EXCEPTION = 19 [(metadata) = { exit_code: 36 }];
+    ACTION_NOT_UP_TO_DATE = 20 [(metadata) = { exit_code: 1 }];
+    PSEUDO_ACTION_EXECUTION_PROHIBITED = 21 [(metadata) = { exit_code: 1 }];
+    DISCOVERED_INPUT_DOES_NOT_EXIST = 22 [(metadata) = { exit_code: 36 }];
+    ACTION_OUTPUTS_DELETION_FAILURE = 23 [(metadata) = { exit_code: 1 }];
+    ACTION_OUTPUTS_NOT_CREATED = 24 [(metadata) = { exit_code: 1 }];
+    ACTION_FINALIZATION_FAILURE = 25 [(metadata) = { exit_code: 1 }];
+    ACTION_INPUT_LOST = 26 [(metadata) = { exit_code: 1 }];
+    FILESYSTEM_CONTEXT_UPDATE_FAILURE = 27 [(metadata) = { exit_code: 1 }];
+    ACTION_OUTPUT_CLOSE_FAILURE = 28 [(metadata) = { exit_code: 1 }];
+    INPUT_DISCOVERY_IO_EXCEPTION = 29 [(metadata) = { exit_code: 1 }];
+    TREE_ARTIFACT_DIRECTORY_CREATION_FAILURE = 30
+        [(metadata) = { exit_code: 1 }];
+    ACTION_OUTPUT_DIRECTORY_CREATION_FAILURE = 31
+        [(metadata) = { exit_code: 1 }];
+    ACTION_FS_OUTPUT_DIRECTORY_CREATION_FAILURE = 32
+        [(metadata) = { exit_code: 1 }];
+    ACTION_FS_OUT_ERR_DIRECTORY_CREATION_FAILURE = 33
+        [(metadata) = { exit_code: 1 }];
+    NON_ACTION_EXECUTION_FAILURE = 34 [(metadata) = { exit_code: 1 }];
+    CYCLE = 35 [(metadata) = { exit_code: 1 }];
+    SOURCE_INPUT_MISSING = 36 [(metadata) = { exit_code: 1 }];
+    UNEXPECTED_EXCEPTION = 37 [(metadata) = { exit_code: 1 }];
+    reserved 38;
+    SOURCE_INPUT_IO_EXCEPTION = 39 [(metadata) = { exit_code: 1 }];
+    SYMLINK_TREE_DELETION_IO_EXCEPTION = 40 [(metadata) = { exit_code: 36 }];
+  }
+
+  Code code = 1;
+}
+
+// Failure details about Bazel's WORKSPACE features.
+message Workspaces {
+  enum Code {
+    WORKSPACES_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    WORKSPACES_LOG_INITIALIZATION_FAILURE = 1 [(metadata) = { exit_code: 2 }];
+    WORKSPACES_LOG_WRITE_FAILURE = 2 [(metadata) = { exit_code: 36 }];
+
+    // See `managed_directories` in
+    // https://bazel.build/rules/lib/globals#workspace.
+    ILLEGAL_WORKSPACE_FILE_SYMLINK_WITH_MANAGED_DIRECTORIES = 3
+        [(metadata) = { exit_code: 1 }];
+    WORKSPACE_FILE_READ_FAILURE_WITH_MANAGED_DIRECTORIES = 4
+        [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message CrashOptions {
+  enum Code {
+    CRASH_OPTIONS_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    reserved 1; // For internal use
+  }
+
+  Code code = 1;
+}
+
+message Filesystem {
+  enum Code {
+    FILESYSTEM_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    reserved 1;
+    reserved 2;
+    EMBEDDED_BINARIES_ENUMERATION_FAILURE = 3 [(metadata) = { exit_code: 36 }];
+    SERVER_PID_TXT_FILE_READ_FAILURE = 4 [(metadata) = { exit_code: 36 }];
+    SERVER_FILE_WRITE_FAILURE = 5 [(metadata) = { exit_code: 36 }];
+    DEFAULT_DIGEST_HASH_FUNCTION_INVALID_VALUE = 6
+        [(metadata) = { exit_code: 2 }];
+    FILESYSTEM_JNI_NOT_AVAILABLE = 8 [(metadata) = { exit_code: 36 }];
+
+    reserved 7, 9, 10; // For internal use
+  }
+
+  Code code = 1;
+}
+
+message ExecutionOptions {
+  // All numerical exit code associations correspond to pre-existing Bazel
+  // behavior. These associations are suspicious:
+  // - REQUESTED_STRATEGY_INCOMPATIBLE_WITH_SANDBOXING (instead: 2?)
+  // - DEPRECATED_LOCAL_RESOURCES_USED (instead: 2?)
+  // TODO(b/138456686): Revise these after the (intentionally non-breaking)
+  //  initial rollout of FailureDetail-based encoding.
+  enum Code {
+    EXECUTION_OPTIONS_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    INVALID_STRATEGY = 3 [(metadata) = { exit_code: 2 }];
+    REQUESTED_STRATEGY_INCOMPATIBLE_WITH_SANDBOXING = 4
+        [(metadata) = { exit_code: 36 }];
+    DEPRECATED_LOCAL_RESOURCES_USED = 5 [(metadata) = { exit_code: 36 }];
+    INVALID_CYCLIC_DYNAMIC_STRATEGY = 6 [(metadata) = { exit_code: 36 }];
+    RESTRICTION_UNMATCHED_TO_ACTION_CONTEXT = 7 [(metadata) = { exit_code: 2 }];
+    REMOTE_FALLBACK_STRATEGY_NOT_ABSTRACT_SPAWN = 8
+        [(metadata) = { exit_code: 2 }];
+    STRATEGY_NOT_FOUND = 9 [(metadata) = { exit_code: 2 }];
+    DYNAMIC_STRATEGY_NOT_SANDBOXED = 10 [(metadata) = { exit_code: 2 }];
+    MULTIPLE_EXECUTION_LOG_FORMATS = 11 [(metadata) = { exit_code: 2 }];
+
+    reserved 1, 2; // For internal use
+  }
+
+  Code code = 1;
+}
+
+message Command {
+  enum Code {
+    // The name "COMMAND_UNKNOWN" might reasonably be interpreted as "command
+    // not found". The enum's default value should represent a lack of knowledge
+    // about the failure instead.
+    COMMAND_FAILURE_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    COMMAND_NOT_FOUND = 1 [(metadata) = { exit_code: 2 }];
+    ANOTHER_COMMAND_RUNNING = 2 [(metadata) = { exit_code: 9 }];
+    PREVIOUSLY_SHUTDOWN = 3 [(metadata) = { exit_code: 36 }];
+    STARLARK_CPU_PROFILE_FILE_INITIALIZATION_FAILURE = 4
+        [(metadata) = { exit_code: 36 }];
+    STARLARK_CPU_PROFILING_INITIALIZATION_FAILURE = 5
+        [(metadata) = { exit_code: 36 }];
+    STARLARK_CPU_PROFILE_FILE_WRITE_FAILURE = 6
+        [(metadata) = { exit_code: 36 }];
+    INVOCATION_POLICY_PARSE_FAILURE = 7 [(metadata) = { exit_code: 2 }];
+    INVOCATION_POLICY_INVALID = 8 [(metadata) = { exit_code: 2 }];
+    OPTIONS_PARSE_FAILURE = 9 [(metadata) = { exit_code: 2 }];
+    STARLARK_OPTIONS_PARSE_FAILURE = 10 [(metadata) = { exit_code: 2 }];
+    ARGUMENTS_NOT_RECOGNIZED = 11 [(metadata) = { exit_code: 2 }];
+    NOT_IN_WORKSPACE = 12 [(metadata) = { exit_code: 2 }];
+    reserved 13;
+    IN_OUTPUT_DIRECTORY = 14 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+message GrpcServer {
+  enum Code {
+    GRPC_SERVER_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    GRPC_SERVER_NOT_COMPILED_IN = 1 [(metadata) = { exit_code: 37 }];
+    SERVER_BIND_FAILURE = 2 [(metadata) = { exit_code: 1 }];
+    BAD_COOKIE = 3 [(metadata) = { exit_code: 36 }];
+    NO_CLIENT_DESCRIPTION = 4 [(metadata) = { exit_code: 36 }];
+    reserved 5; // For internal use
+  }
+
+  Code code = 1;
+}
+
+message CanonicalizeFlags {
+  enum Code {
+    CANONICALIZE_FLAGS_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    FOR_COMMAND_INVALID = 1 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+// Failure modes described by this category pertain to the Bazel invocation
+// configuration consumed by Bazel's analysis phase. This category is not
+// intended as a grab-bag for all Bazel flag value constraint violations, which
+// instead generally belong in the category for the subsystem whose flag values
+// participate in the constraint.
+message BuildConfiguration {
+  enum Code {
+    BUILD_CONFIGURATION_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    PLATFORM_MAPPING_EVALUATION_FAILURE = 1 [(metadata) = { exit_code: 2 }];
+    PLATFORM_MAPPINGS_FILE_IS_DIRECTORY = 2 [(metadata) = { exit_code: 1 }];
+    PLATFORM_MAPPINGS_FILE_NOT_FOUND = 3 [(metadata) = { exit_code: 1 }];
+    TOP_LEVEL_CONFIGURATION_CREATION_FAILURE = 4
+        [(metadata) = { exit_code: 1 }];
+    INVALID_CONFIGURATION = 5 [(metadata) = { exit_code: 2 }];
+    INVALID_BUILD_OPTIONS = 6 [(metadata) = { exit_code: 2 }];
+    MULTI_CPU_PREREQ_UNMET = 7 [(metadata) = { exit_code: 2 }];
+    HEURISTIC_INSTRUMENTATION_FILTER_INVALID = 8
+        [(metadata) = { exit_code: 2 }];
+    CYCLE = 9 [(metadata) = { exit_code: 2 }];
+    CONFLICTING_CONFIGURATIONS = 10 [(metadata) = { exit_code: 2 }];
+    // This can come from either an invalid user-specified option or a
+    // configuration transition. There's no sure-fire way to distinguish the two
+    // possibilities in Bazel, so we go with the more straightforward
+    // command-line error exit code 2.
+    INVALID_OUTPUT_DIRECTORY_MNEMONIC = 11 [(metadata) = { exit_code: 2 }];
+    CONFIGURATION_DISCARDED_ANALYSIS_CACHE = 12 [(metadata) = { exit_code: 2 }];
+    // Failure modes specific to PROJECT.scl files.
+    INVALID_PROJECT = 13 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+message InfoCommand {
+  // The distinction between a failure to write a single info item and a failure
+  // to write them all seems sketchy. Why do they have different exit codes?
+  // This reflects current Bazel behavior, but deserves more thought.
+  enum Code {
+    INFO_COMMAND_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    TOO_MANY_KEYS = 1 [(metadata) = { exit_code: 2 }];
+    KEY_NOT_RECOGNIZED = 2 [(metadata) = { exit_code: 2 }];
+    INFO_BLOCK_WRITE_FAILURE = 3 [(metadata) = { exit_code: 7 }];
+    ALL_INFO_WRITE_FAILURE = 4 [(metadata) = { exit_code: 36 }];
+  }
+
+  Code code = 1;
+}
+
+message MemoryOptions {
+  enum Code {
+    MEMORY_OPTIONS_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    // Deprecated: validation is now implemented by the option converter.
+    DEPRECATED_EXPERIMENTAL_OOM_MORE_EAGERLY_THRESHOLD_INVALID_VALUE = 1
+        [(metadata) = { exit_code: 2 }, deprecated = true];
+    // Deprecated: no tenured collectors found is now a crash on startup.
+    DEPRECATED_EXPERIMENTAL_OOM_MORE_EAGERLY_NO_TENURED_COLLECTORS_FOUND = 2
+        [(metadata) = { exit_code: 2 }, deprecated = true];
+  }
+
+  Code code = 1;
+}
+
+message Query {
+  enum Code {
+    QUERY_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    QUERY_FILE_WITH_COMMAND_LINE_EXPRESSION = 1 [(metadata) = { exit_code: 2 }];
+    QUERY_FILE_READ_FAILURE = 2 [(metadata) = { exit_code: 2 }];
+    COMMAND_LINE_EXPRESSION_MISSING = 3 [(metadata) = { exit_code: 2 }];
+    OUTPUT_FORMAT_INVALID = 4 [(metadata) = { exit_code: 2 }];
+    GRAPHLESS_PREREQ_UNMET = 5 [(metadata) = { exit_code: 2 }];
+    QUERY_OUTPUT_WRITE_FAILURE = 6 [(metadata) = { exit_code: 36 }];
+    QUERY_STDOUT_FLUSH_FAILURE = 13 [(metadata) = { exit_code: 36 }];
+    ANALYSIS_QUERY_PREREQ_UNMET = 14 [(metadata) = { exit_code: 2 }];
+    QUERY_RESULTS_FLUSH_FAILURE = 15 [(metadata) = { exit_code: 36 }];
+    // Deprecated - folded into SYNTAX_ERROR.
+    DEPRECATED_UNCLOSED_QUOTATION_EXPRESSION_ERROR = 16
+        [(metadata) = { exit_code: 2 }];
+    VARIABLE_NAME_INVALID = 17 [(metadata) = { exit_code: 7 }];
+    VARIABLE_UNDEFINED = 18 [(metadata) = { exit_code: 7 }];
+    BUILDFILES_AND_LOADFILES_CANNOT_USE_OUTPUT_LOCATION_ERROR = 19
+        [(metadata) = { exit_code: 2 }];
+    BUILD_FILE_ERROR = 20 [(metadata) = { exit_code: 7 }];
+    CYCLE = 21 [(metadata) = { exit_code: 7 }];
+    UNIQUE_SKYKEY_THRESHOLD_EXCEEDED = 22 [(metadata) = { exit_code: 7 }];
+    TARGET_NOT_IN_UNIVERSE_SCOPE = 23 [(metadata) = { exit_code: 2 }];
+    INVALID_FULL_UNIVERSE_EXPRESSION = 24 [(metadata) = { exit_code: 7 }];
+    UNIVERSE_SCOPE_LIMIT_EXCEEDED = 25 [(metadata) = { exit_code: 7 }];
+    INVALIDATION_LIMIT_EXCEEDED = 26 [(metadata) = { exit_code: 7 }];
+    OUTPUT_FORMAT_PREREQ_UNMET = 27 [(metadata) = { exit_code: 2 }];
+    ARGUMENTS_MISSING = 28 [(metadata) = { exit_code: 7 }];
+    RBUILDFILES_FUNCTION_REQUIRES_SKYQUERY = 29 [(metadata) = { exit_code: 7 }];
+    FULL_TARGETS_NOT_SUPPORTED = 30 [(metadata) = { exit_code: 7 }];
+    // Deprecated - folded into SYNTAX_ERROR.
+    DEPRECATED_UNEXPECTED_TOKEN_ERROR = 31 [(metadata) = { exit_code: 2 }];
+    // Deprecated - folded into SYNTAX_ERROR.
+    DEPRECATED_INTEGER_LITERAL_MISSING = 32 [(metadata) = { exit_code: 2 }];
+    // Deprecated - folded into SYNTAX_ERROR.
+    DEPRECATED_INVALID_STARTING_CHARACTER_ERROR = 33
+        [(metadata) = { exit_code: 2 }];
+    // Deprecated - folded into SYNTAX_ERROR.
+    DEPRECATED_PREMATURE_END_OF_INPUT_ERROR = 34
+        [(metadata) = { exit_code: 2 }];
+    // Indicates the user specified invalid query syntax.
+    SYNTAX_ERROR = 35 [(metadata) = { exit_code: 2 }];
+    OUTPUT_FORMATTER_IO_EXCEPTION = 36 [(metadata) = { exit_code: 36 }];
+    SKYQUERY_TRANSITIVE_TARGET_ERROR = 37 [(metadata) = { exit_code: 7 }];
+    SKYQUERY_TARGET_EXCEPTION = 38 [(metadata) = { exit_code: 7 }];
+    INVALID_LABEL_IN_TEST_SUITE = 39 [(metadata) = { exit_code: 7 }];
+    // Indicates any usage of flags that must not be combined.
+    ILLEGAL_FLAG_COMBINATION = 40 [(metadata) = { exit_code: 2 }];
+    // Indicates a non-detailed exception that halted a query. This is a
+    // deficiency in Blaze/Bazel and code should be changed to attach a detailed
+    // exit code to this failure mode.
+    NON_DETAILED_ERROR = 41 [(metadata) = { exit_code: 1 }];
+
+    reserved 7 to 12; // For internal use
+  }
+
+  Code code = 1;
+}
+
+message LocalExecution {
+  enum Code {
+    LOCAL_EXECUTION_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    LOCKFREE_OUTPUT_PREREQ_UNMET = 1 [(metadata) = { exit_code: 2 }];
+    UNTRACKED_RESOURCE = 2 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message ActionCache {
+  enum Code {
+    ACTION_CACHE_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    INITIALIZATION_FAILURE = 1 [(metadata) = { exit_code: 36 }];
+  }
+
+  Code code = 1;
+}
+
+message FetchCommand {
+  enum Code {
+    FETCH_COMMAND_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    EXPRESSION_MISSING = 1 [(metadata) = { exit_code: 2 }];
+    OPTIONS_INVALID = 2 [(metadata) = { exit_code: 2 }];
+    QUERY_PARSE_ERROR = 3 [(metadata) = { exit_code: 2 }];
+    QUERY_EVALUATION_ERROR = 4 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+message SyncCommand {
+  enum Code {
+    SYNC_COMMAND_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    PACKAGE_LOOKUP_ERROR = 1 [(metadata) = { exit_code: 7 }];
+    WORKSPACE_EVALUATION_ERROR = 2 [(metadata) = { exit_code: 7 }];
+    REPOSITORY_FETCH_ERRORS = 3 [(metadata) = { exit_code: 7 }];
+    REPOSITORY_NAME_INVALID = 4 [(metadata) = { exit_code: 7 }];
+  }
+
+  Code code = 1;
+}
+
+message Sandbox {
+  enum Code {
+    SANDBOX_FAILURE_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    INITIALIZATION_FAILURE = 1 [(metadata) = { exit_code: 36 }];
+    EXECUTION_IO_EXCEPTION = 2 [(metadata) = { exit_code: 36 }];
+    DOCKER_COMMAND_FAILURE = 3 [(metadata) = { exit_code: 1 }];
+    NO_DOCKER_IMAGE = 4 [(metadata) = { exit_code: 1 }];
+    DOCKER_IMAGE_PREPARATION_FAILURE = 5 [(metadata) = { exit_code: 1 }];
+    BIND_MOUNT_ANALYSIS_FAILURE = 6 [(metadata) = { exit_code: 1 }];
+    MOUNT_SOURCE_DOES_NOT_EXIST = 7 [(metadata) = { exit_code: 1 }];
+    MOUNT_SOURCE_TARGET_TYPE_MISMATCH = 8 [(metadata) = { exit_code: 1 }];
+    MOUNT_TARGET_DOES_NOT_EXIST = 9 [(metadata) = { exit_code: 1 }];
+    SUBPROCESS_START_FAILED = 10 [(metadata) = { exit_code: 36 }];
+    FORBIDDEN_INPUT = 11 [(metadata) = { exit_code: 1 }];
+    COPY_INPUTS_IO_EXCEPTION = 12 [(metadata) = { exit_code: 36 }];
+    COPY_OUTPUTS_IO_EXCEPTION = 13 [(metadata) = { exit_code: 36 }];
+  }
+
+  Code code = 1;
+}
+
+message IncludeScanning {
+  enum Code {
+    INCLUDE_SCANNING_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    INITIALIZE_INCLUDE_HINTS_ERROR = 1 [(metadata) = { exit_code: 36 }];
+    SCANNING_IO_EXCEPTION = 2 [(metadata) = { exit_code: 36 }];
+    INCLUDE_HINTS_FILE_NOT_IN_PACKAGE = 3 [(metadata) = { exit_code: 36 }];
+    INCLUDE_HINTS_READ_FAILURE = 4 [(metadata) = { exit_code: 36 }];
+    ILLEGAL_ABSOLUTE_PATH = 5 [(metadata) = { exit_code: 1 }];
+    // TODO(b/166268889): this code should be deprecated in favor of more finely
+    //  resolved loading-phase codes.
+    PACKAGE_LOAD_FAILURE = 6 [(metadata) = { exit_code: 1 }];
+    USER_PACKAGE_LOAD_FAILURE = 7 [(metadata) = { exit_code: 1 }];
+    SYSTEM_PACKAGE_LOAD_FAILURE = 8 [(metadata) = { exit_code: 36 }];
+    UNDIFFERENTIATED_PACKAGE_LOAD_FAILURE = 9 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+  PackageLoading.Code package_loading_code = 2;
+}
+
+message TestCommand {
+  enum Code {
+    TEST_COMMAND_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    NO_TEST_TARGETS = 1 [(metadata) = { exit_code: 4 }];
+    TEST_WITH_NOANALYZE = 2 [(metadata) = { exit_code: 1 }];
+    TESTS_FAILED = 3 [(metadata) = { exit_code: 3 }];
+  }
+
+  Code code = 1;
+}
+
+message ActionQuery {
+  // All numerical exit code associations correspond to pre-existing Bazel
+  // behavior. These associations are suspicious:
+  // - COMMAND_LINE_EXPANSION_FAILURE: this is associated with 2, the numerical
+  //     exit code for "bad Bazel command line", but is generated when an
+  //     action's command line fails to expand, which sounds similar but is
+  //     completely different.
+  // - OUTPUT_FAILURE: this is associated with 6, an undocumented exit code.
+  // - INVALID_AQUERY_EXPRESSION: this is associate with 1, which is not
+  //    documented for (a)query.
+  // TODO(b/138456686): Revise these after the (intentionally non-breaking)
+  //  initial rollout of FailureDetail-based encoding.
+  enum Code {
+    ACTION_QUERY_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    COMMAND_LINE_EXPANSION_FAILURE = 1 [(metadata) = { exit_code: 2 }];
+    OUTPUT_FAILURE = 2 [(metadata) = { exit_code: 6 }];
+    COMMAND_LINE_EXPRESSION_MISSING = 3 [(metadata) = { exit_code: 2 }];
+    EXPRESSION_PARSE_FAILURE = 4 [(metadata) = { exit_code: 2 }];
+    SKYFRAME_STATE_WITH_COMMAND_LINE_EXPRESSION = 5
+        [(metadata) = { exit_code: 2 }];
+    INVALID_AQUERY_EXPRESSION = 6 [(metadata) = { exit_code: 1 }];
+    SKYFRAME_STATE_PREREQ_UNMET = 7 [(metadata) = { exit_code: 2 }];
+    AQUERY_OUTPUT_TOO_BIG = 8 [(metadata) = { exit_code: 7 }];
+    ILLEGAL_PATTERN_SYNTAX = 9 [(metadata) = { exit_code: 2 }];
+    INCORRECT_ARGUMENTS = 10 [(metadata) = { exit_code: 2 }];
+    TOP_LEVEL_TARGETS_WITH_SKYFRAME_STATE_NOT_SUPPORTED = 11
+        [(metadata) = { exit_code: 2 }];
+    SKYFRAME_STATE_AFTER_EXECUTION = 12 [(metadata) = { exit_code: 1 }];
+    LABELS_FUNCTION_NOT_SUPPORTED = 13 [(metadata) = { exit_code: 2 }];
+    TEMPLATE_EXPANSION_FAILURE = 14 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+message TargetPatterns {
+  enum Code {
+    TARGET_PATTERNS_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    TARGET_PATTERN_FILE_WITH_COMMAND_LINE_PATTERN = 1
+        [(metadata) = { exit_code: 2 }];
+    TARGET_PATTERN_FILE_READ_FAILURE = 2 [(metadata) = { exit_code: 2 }];
+    TARGET_PATTERN_PARSE_FAILURE = 3 [(metadata) = { exit_code: 1 }];
+    PACKAGE_NOT_FOUND = 4 [(metadata) = { exit_code: 1 }];
+    TARGET_FORMAT_INVALID = 5 [(metadata) = { exit_code: 1 }];
+    ABSOLUTE_TARGET_PATTERN_INVALID = 6 [(metadata) = { exit_code: 1 }];
+    CANNOT_DETERMINE_TARGET_FROM_FILENAME = 7 [(metadata) = { exit_code: 1 }];
+    LABEL_SYNTAX_ERROR = 8 [(metadata) = { exit_code: 1 }];
+    TARGET_CANNOT_BE_EMPTY_STRING = 9 [(metadata) = { exit_code: 1 }];
+    PACKAGE_PART_CANNOT_END_IN_SLASH = 10 [(metadata) = { exit_code: 1 }];
+    CYCLE = 11 [(metadata) = { exit_code: 1 }];
+    CANNOT_PRELOAD_TARGET = 12 [(metadata) = { exit_code: 1 }];
+    TARGETS_MISSING = 13 [(metadata) = { exit_code: 1 }];
+    RECURSIVE_TARGET_PATTERNS_NOT_ALLOWED = 14 [(metadata) = { exit_code: 1 }];
+    UP_LEVEL_REFERENCES_NOT_ALLOWED = 15 [(metadata) = { exit_code: 1 }];
+    NEGATIVE_TARGET_PATTERN_NOT_ALLOWED = 16 [(metadata) = { exit_code: 1 }];
+    TARGET_MUST_BE_A_FILE = 17 [(metadata) = { exit_code: 1 }];
+    DEPENDENCY_NOT_FOUND = 18 [(metadata) = { exit_code: 1 }];
+    PACKAGE_NAME_INVALID = 19 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message CleanCommand {
+  enum Code {
+    CLEAN_COMMAND_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    OUTPUT_SERVICE_CLEAN_FAILURE = 1 [(metadata) = { exit_code: 6 }];
+    ACTION_CACHE_CLEAN_FAILURE = 2 [(metadata) = { exit_code: 36 }];
+    OUT_ERR_CLOSE_FAILURE = 3 [(metadata) = { exit_code: 36 }];
+    OUTPUT_BASE_DELETE_FAILURE = 4 [(metadata) = { exit_code: 36 }];
+    OUTPUT_BASE_TEMP_MOVE_FAILURE = 5 [(metadata) = { exit_code: 36 }];
+    ASYNC_OUTPUT_BASE_DELETE_FAILURE = 6 [(metadata) = { exit_code: 6 }];
+    EXECROOT_DELETE_FAILURE = 7 [(metadata) = { exit_code: 36 }];
+    EXECROOT_TEMP_MOVE_FAILURE = 8 [(metadata) = { exit_code: 36 }];
+    ASYNC_EXECROOT_DELETE_FAILURE = 9 [(metadata) = { exit_code: 6 }];
+    ARGUMENTS_NOT_RECOGNIZED = 10 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+message ConfigCommand {
+  enum Code {
+    CONFIG_COMMAND_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    TOO_MANY_CONFIG_IDS = 1 [(metadata) = { exit_code: 2 }];
+    CONFIGURATION_NOT_FOUND = 2 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+message ConfigurableQuery {
+  enum Code {
+    CONFIGURABLE_QUERY_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    COMMAND_LINE_EXPRESSION_MISSING = 1 [(metadata) = { exit_code: 2 }];
+    EXPRESSION_PARSE_FAILURE = 2 [(metadata) = { exit_code: 2 }];
+    FILTERS_NOT_SUPPORTED = 3 [(metadata) = { exit_code: 2 }];
+    BUILDFILES_FUNCTION_NOT_SUPPORTED = 4 [(metadata) = { exit_code: 2 }];
+    SIBLINGS_FUNCTION_NOT_SUPPORTED = 5 [(metadata) = { exit_code: 2 }];
+    VISIBLE_FUNCTION_NOT_SUPPORTED = 6 [(metadata) = { exit_code: 2 }];
+    ATTRIBUTE_MISSING = 7 [(metadata) = { exit_code: 2 }];
+    INCORRECT_CONFIG_ARGUMENT_ERROR = 8 [(metadata) = { exit_code: 2 }];
+    TARGET_MISSING = 9 [(metadata) = { exit_code: 2 }];
+    STARLARK_SYNTAX_ERROR = 10 [(metadata) = { exit_code: 2 }];
+    STARLARK_EVAL_ERROR = 11 [(metadata) = { exit_code: 2 }];
+    // Indicates failure to correctly define a format function
+    FORMAT_FUNCTION_ERROR = 12 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+message DumpCommand {
+  enum Code {
+    DUMP_COMMAND_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    NO_OUTPUT_SPECIFIED = 1 [(metadata) = { exit_code: 7 }];
+    ACTION_CACHE_DUMP_FAILED = 2 [(metadata) = { exit_code: 7 }];
+    COMMAND_LINE_EXPANSION_FAILURE = 3 [(metadata) = { exit_code: 7 }];
+    ACTION_GRAPH_DUMP_FAILED = 4 [(metadata) = { exit_code: 7 }];
+    STARLARK_HEAP_DUMP_FAILED = 5 [(metadata) = { exit_code: 8 }];
+     reserved 6; // For internal use
+    SKYFRAME_MEMORY_DUMP_FAILED = 7 [(metadata) = { exit_code: 7 }];
+    // deprecated, moved to the RemoteAnalysisCaching message.
+    reserved 8;
+  }
+
+  Code code = 1;
+}
+
+message HelpCommand {
+  enum Code {
+    HELP_COMMAND_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    MISSING_ARGUMENT = 1 [(metadata) = { exit_code: 2 }];
+    COMMAND_NOT_FOUND = 2 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+message MobileInstall {
+  enum Code {
+    MOBILE_INSTALL_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    CLASSIC_UNSUPPORTED = 1 [(metadata) = { exit_code: 2 }];
+    NO_TARGET_SPECIFIED = 2 [(metadata) = { exit_code: 2 }];
+    MULTIPLE_TARGETS_SPECIFIED = 3 [(metadata) = { exit_code: 2 }];
+    TARGET_TYPE_INVALID = 4 [(metadata) = { exit_code: 6 }];
+    NON_ZERO_EXIT = 5 [(metadata) = { exit_code: 6 }];
+    ERROR_RUNNING_PROGRAM = 6 [(metadata) = { exit_code: 6 }];
+  }
+
+  Code code = 1;
+}
+
+message ProfileCommand {
+  enum Code {
+    PROFILE_COMMAND_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    OLD_BINARY_FORMAT_UNSUPPORTED = 1 [(metadata) = { exit_code: 1 }];
+    FILE_READ_FAILURE = 2 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message RunCommand {
+  enum Code {
+    RUN_COMMAND_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    NO_TARGET_SPECIFIED = 1 [(metadata) = { exit_code: 2 }];
+    TOO_MANY_TARGETS_SPECIFIED = 2 [(metadata) = { exit_code: 2 }];
+    TARGET_NOT_EXECUTABLE = 3 [(metadata) = { exit_code: 2 }];
+    TARGET_BUILT_BUT_PATH_NOT_EXECUTABLE = 4 [(metadata) = { exit_code: 1 }];
+    TARGET_BUILT_BUT_PATH_VALIDATION_FAILED = 5
+        [(metadata) = { exit_code: 36 }];
+    RUN_UNDER_TARGET_NOT_BUILT = 6 [(metadata) = { exit_code: 2 }];
+    RUN_PREREQ_UNMET = 7 [(metadata) = { exit_code: 2 }];
+    TOO_MANY_TEST_SHARDS_OR_RUNS = 8 [(metadata) = { exit_code: 2 }];
+    TEST_ENVIRONMENT_SETUP_FAILURE = 9 [(metadata) = { exit_code: 36 }];
+    COMMAND_LINE_EXPANSION_FAILURE = 10 [(metadata) = { exit_code: 36 }];
+    NO_SHELL_SPECIFIED = 11 [(metadata) = { exit_code: 2 }];
+    SCRIPT_WRITE_FAILURE = 12 [(metadata) = { exit_code: 6 }];
+    RUNFILES_DIRECTORIES_CREATION_FAILURE = 13 [(metadata) = { exit_code: 36 }];
+    RUNFILES_SYMLINKS_CREATION_FAILURE = 14 [(metadata) = { exit_code: 36 }];
+    TEST_ENVIRONMENT_SETUP_INTERRUPTED = 15 [(metadata) = { exit_code: 8 }];
+  }
+
+  Code code = 1;
+}
+
+message VersionCommand {
+  enum Code {
+    VERSION_COMMAND_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    NOT_AVAILABLE = 1 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+message PrintActionCommand {
+  enum Code {
+    PRINT_ACTION_COMMAND_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    TARGET_NOT_FOUND = 1 [(metadata) = { exit_code: 1 }];
+    COMMAND_LINE_EXPANSION_FAILURE = 2 [(metadata) = { exit_code: 1 }];
+    TARGET_KIND_UNSUPPORTED = 3 [(metadata) = { exit_code: 1 }];
+    ACTIONS_NOT_FOUND = 4 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message WorkspaceStatus {
+  enum Code {
+    WORKSPACE_STATUS_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    NON_ZERO_EXIT = 1 [(metadata) = { exit_code: 1 }];
+    ABNORMAL_TERMINATION = 2 [(metadata) = { exit_code: 1 }];
+    EXEC_FAILED = 3 [(metadata) = { exit_code: 1 }];
+    PARSE_FAILURE = 4 [(metadata) = { exit_code: 36 }];
+    VALIDATION_FAILURE = 5 [(metadata) = { exit_code: 1 }];
+    CONTENT_UPDATE_IO_EXCEPTION = 6 [(metadata) = { exit_code: 1 }];
+    STDERR_IO_EXCEPTION = 7 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message JavaCompile {
+  enum Code {
+    JAVA_COMPILE_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    REDUCED_CLASSPATH_FAILURE = 1 [(metadata) = { exit_code: 1 }];
+    COMMAND_LINE_EXPANSION_FAILURE = 2 [(metadata) = { exit_code: 1 }];
+    JDEPS_READ_IO_EXCEPTION = 3 [(metadata) = { exit_code: 36 }];
+    REDUCED_CLASSPATH_FALLBACK_CLEANUP_FAILURE = 4
+        [(metadata) = { exit_code: 36 }];
+  }
+
+  Code code = 1;
+}
+
+message ActionRewinding {
+  enum Code {
+    ACTION_REWINDING_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    LOST_INPUT_TOO_MANY_TIMES = 1 [(metadata) = { exit_code: 1 }];
+    REWIND_LOST_INPUTS_PREREQ_UNMET = 3 [(metadata) = { exit_code: 2 }];
+    LOST_OUTPUT_TOO_MANY_TIMES = 4 [(metadata) = { exit_code: 1 }];
+    LOST_INPUT_REWINDING_DISABLED = 5 [(metadata) = { exit_code: 1 }];
+    LOST_OUTPUT_REWINDING_DISABLED = 6 [(metadata) = { exit_code: 1 }];
+    // Deprecated: attempting to rewind a source artifact is now a hard crash.
+    DEPRECATED_LOST_INPUT_IS_SOURCE = 2
+        [(metadata) = { exit_code: 1 }, deprecated = true];
+  }
+
+  Code code = 1;
+}
+
+message CppCompile {
+  enum Code {
+    CPP_COMPILE_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    FIND_USED_HEADERS_IO_EXCEPTION = 1 [(metadata) = { exit_code: 36 }];
+    COPY_OUT_ERR_FAILURE = 2 [(metadata) = { exit_code: 36 }];
+    D_FILE_READ_FAILURE = 3 [(metadata) = { exit_code: 36 }];
+    COMMAND_GENERATION_FAILURE = 4 [(metadata) = { exit_code: 1 }];
+    MODULE_EXPANSION_TIMEOUT = 5 [(metadata) = { exit_code: 1 }];
+    INCLUDE_PATH_OUTSIDE_EXEC_ROOT = 6 [(metadata) = { exit_code: 1 }];
+    FAKE_COMMAND_GENERATION_FAILURE = 7 [(metadata) = { exit_code: 1 }];
+    UNDECLARED_INCLUSIONS = 8 [(metadata) = { exit_code: 1 }];
+    D_FILE_PARSE_FAILURE = 9 [(metadata) = { exit_code: 1 }];
+    COVERAGE_NOTES_CREATION_FAILURE = 10 [(metadata) = { exit_code: 1 }];
+    MODULE_EXPANSION_MISSING_DATA = 11 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message StarlarkAction {
+  enum Code {
+    STARLARK_ACTION_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    UNUSED_INPUT_LIST_READ_FAILURE = 1 [(metadata) = { exit_code: 36 }];
+    UNUSED_INPUT_LIST_FILE_NOT_FOUND = 2 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message NinjaAction {
+  enum Code {
+    NINJA_ACTION_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    INVALID_DEPFILE_DECLARED_DEPENDENCY = 1 [(metadata) = { exit_code: 36 }];
+    D_FILE_PARSE_FAILURE = 2 [(metadata) = { exit_code: 36 }];
+  }
+
+  Code code = 1;
+}
+
+message DynamicExecution {
+  enum Code {
+    DYNAMIC_EXECUTION_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    XCODE_RELATED_PREREQ_UNMET = 1 [(metadata) = { exit_code: 36 }];
+    ACTION_LOG_MOVE_FAILURE = 2 [(metadata) = { exit_code: 1 }];
+    RUN_FAILURE = 3 [(metadata) = { exit_code: 1 }];
+    NO_USABLE_STRATEGY_FOUND = 4 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
+
+message FailAction {
+  enum Code {
+    FAIL_ACTION_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    INTENTIONAL_FAILURE = 1 [(metadata) = { exit_code: 1 }];
+    INCORRECT_PYTHON_VERSION = 2 [(metadata) = { exit_code: 1 }];
+    PROGUARD_SPECS_MISSING = 3 [(metadata) = { exit_code: 1 }];
+    DYNAMIC_LINKING_NOT_SUPPORTED = 4 [(metadata) = { exit_code: 1 }];
+    SOURCE_FILES_MISSING = 5 [(metadata) = { exit_code: 1 }];
+    INCORRECT_TOOLCHAIN = 6 [(metadata) = { exit_code: 1 }];
+    FRAGMENT_CLASS_MISSING = 7 [(metadata) = { exit_code: 1 }];
+    reserved 8, 9; // For internal use
+    CANT_BUILD_INCOMPATIBLE_TARGET = 10 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message SymlinkAction {
+  enum Code {
+    SYMLINK_ACTION_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    EXECUTABLE_INPUT_NOT_FILE = 1 [(metadata) = { exit_code: 1 }];
+    EXECUTABLE_INPUT_IS_NOT = 2 [(metadata) = { exit_code: 1 }];
+    EXECUTABLE_INPUT_CHECK_IO_EXCEPTION = 3 [(metadata) = { exit_code: 1 }];
+    LINK_CREATION_IO_EXCEPTION = 4 [(metadata) = { exit_code: 1 }];
+    LINK_TOUCH_IO_EXCEPTION = 5 [(metadata) = { exit_code: 1 }];
+    LINK_LOG_IO_EXCEPTION = 6 [(metadata) = { exit_code: 36 }];
+  }
+
+  Code code = 1;
+}
+
+message CppLink {
+  enum Code {
+    CPP_LINK_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    COMMAND_GENERATION_FAILURE = 1 [(metadata) = { exit_code: 1 }];
+    FAKE_COMMAND_GENERATION_FAILURE = 2 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message LtoAction {
+  enum Code {
+    LTO_ACTION_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    INVALID_ABSOLUTE_PATH_IN_IMPORTS = 1 [(metadata) = { exit_code: 1 }];
+    MISSING_BITCODE_FILES = 2 [(metadata) = { exit_code: 1 }];
+    IMPORTS_READ_IO_EXCEPTION = 3 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message TestAction {
+  enum Code {
+    TEST_ACTION_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    NO_KEEP_GOING_TEST_FAILURE = 1 [(metadata) = { exit_code: 1 }];
+    LOCAL_TEST_PREREQ_UNMET = 2 [(metadata) = { exit_code: 1 }];
+    COMMAND_LINE_EXPANSION_FAILURE = 3 [(metadata) = { exit_code: 1 }];
+    DUPLICATE_CPU_TAGS = 4 [(metadata) = { exit_code: 1 }];
+    INVALID_CPU_TAG = 5 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message Worker {
+  enum Code {
+    WORKER_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    MULTIPLEXER_INSTANCE_REMOVAL_FAILURE = 1 [(metadata) = { exit_code: 1 }];
+    MULTIPLEXER_DOES_NOT_EXIST = 2 [(metadata) = { exit_code: 1 }];
+    NO_TOOLS = 3 [(metadata) = { exit_code: 1 }];
+    NO_FLAGFILE = 4 [(metadata) = { exit_code: 1 }];
+    VIRTUAL_INPUT_MATERIALIZATION_FAILURE = 5 [(metadata) = { exit_code: 1 }];
+    BORROW_FAILURE = 6 [(metadata) = { exit_code: 1 }];
+    PREFETCH_FAILURE = 7 [(metadata) = { exit_code: 36 }];
+    PREPARE_FAILURE = 8 [(metadata) = { exit_code: 1 }];
+    REQUEST_FAILURE = 9 [(metadata) = { exit_code: 1 }];
+    PARSE_RESPONSE_FAILURE = 10 [(metadata) = { exit_code: 1 }];
+    NO_RESPONSE = 11 [(metadata) = { exit_code: 1 }];
+    FINISH_FAILURE = 12 [(metadata) = { exit_code: 1 }];
+    FORBIDDEN_INPUT = 13 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message Analysis {
+  enum Code {
+    ANALYSIS_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    LOAD_FAILURE = 1 [(metadata) = { exit_code: 1 }];
+    // TODO(b/138456686): this code should be deprecated in favor of more finely
+    //   resolved loading-phase codes.
+    GENERIC_LOADING_PHASE_FAILURE = 2 [(metadata) = { exit_code: 1 }];
+    NOT_ALL_TARGETS_ANALYZED = 3 [(metadata) = { exit_code: 1 }];
+    CYCLE = 4 [(metadata) = { exit_code: 1 }];
+    PARAMETERIZED_TOP_LEVEL_ASPECT_INVALID = 5 [(metadata) = { exit_code: 1 }];
+    ASPECT_LABEL_SYNTAX_ERROR = 6 [(metadata) = { exit_code: 1 }];
+    ASPECT_PREREQ_UNMET = 7 [(metadata) = { exit_code: 1 }];
+    ASPECT_NOT_FOUND = 8 [(metadata) = { exit_code: 1 }];
+    ACTION_CONFLICT = 9 [(metadata) = { exit_code: 1 }];
+    ARTIFACT_PREFIX_CONFLICT = 10 [(metadata) = { exit_code: 1 }];
+    UNEXPECTED_ANALYSIS_EXCEPTION = 11 [(metadata) = { exit_code: 1 }];
+    TARGETS_MISSING_ENVIRONMENTS = 12 [(metadata) = { exit_code: 1 }];
+    INVALID_ENVIRONMENT = 13 [(metadata) = { exit_code: 1 }];
+    ENVIRONMENT_MISSING_FROM_GROUPS = 14 [(metadata) = { exit_code: 1 }];
+    EXEC_GROUP_MISSING = 15 [(metadata) = { exit_code: 1 }];
+    INVALID_EXECUTION_PLATFORM = 16 [(metadata) = { exit_code: 1 }];
+    ASPECT_CREATION_FAILED = 17 [(metadata) = { exit_code: 1 }];
+    CONFIGURED_VALUE_CREATION_FAILED = 18 [(metadata) = { exit_code: 1 }];
+    INCOMPATIBLE_TARGET_REQUESTED = 19 [(metadata) = { exit_code: 1 }];
+    ANALYSIS_FAILURE_PROPAGATION_FAILED = 20 [(metadata) = { exit_code: 1 }];
+    ANALYSIS_CACHE_DISCARDED = 21 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message PackageLoading {
+  enum Code {
+    PACKAGE_LOADING_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    WORKSPACE_FILE_ERROR = 1 [(metadata) = { exit_code: 1 }];
+    MAX_COMPUTATION_STEPS_EXCEEDED = 2 [(metadata) = { exit_code: 1 }];
+    BUILD_FILE_MISSING = 3 [(metadata) = { exit_code: 1 }];
+    REPOSITORY_MISSING = 4 [(metadata) = { exit_code: 1 }];
+    PERSISTENT_INCONSISTENT_FILESYSTEM_ERROR = 5
+        [(metadata) = { exit_code: 36 }];
+    TRANSIENT_INCONSISTENT_FILESYSTEM_ERROR = 6
+        [(metadata) = { exit_code: 36 }];
+    INVALID_NAME = 7 [(metadata) = { exit_code: 1 }];
+    // was: PRELUDE_FILE_READ_ERROR. Replaced by IMPORT_STARLARK_FILE_ERROR
+    // when the prelude was changed to be loaded as a Starlark module.
+    reserved 8;
+    EVAL_GLOBS_SYMLINK_ERROR = 9 [(metadata) = { exit_code: 1 }];
+    IMPORT_STARLARK_FILE_ERROR = 10 [(metadata) = { exit_code: 1 }];
+    PACKAGE_MISSING = 11 [(metadata) = { exit_code: 1 }];
+    TARGET_MISSING = 12 [(metadata) = { exit_code: 1 }];
+    NO_SUCH_THING = 13 [(metadata) = { exit_code: 1 }];
+    GLOB_IO_EXCEPTION = 14 [(metadata) = { exit_code: 36 }];
+    DUPLICATE_LABEL = 15 [(metadata) = { exit_code: 1 }];
+    INVALID_PACKAGE_SPECIFICATION = 16 [(metadata) = { exit_code: 1 }];
+    SYNTAX_ERROR = 17 [(metadata) = { exit_code: 1 }];
+    ENVIRONMENT_IN_DIFFERENT_PACKAGE = 18 [(metadata) = { exit_code: 1 }];
+    DEFAULT_ENVIRONMENT_UNDECLARED = 19 [(metadata) = { exit_code: 1 }];
+    ENVIRONMENT_IN_MULTIPLE_GROUPS = 20 [(metadata) = { exit_code: 1 }];
+    ENVIRONMENT_DOES_NOT_EXIST = 21 [(metadata) = { exit_code: 1 }];
+    ENVIRONMENT_INVALID = 22 [(metadata) = { exit_code: 1 }];
+    ENVIRONMENT_NOT_IN_GROUP = 23 [(metadata) = { exit_code: 1 }];
+    PACKAGE_NAME_INVALID = 24 [(metadata) = { exit_code: 1 }];
+    STARLARK_EVAL_ERROR = 25 [(metadata) = { exit_code: 1 }];
+    LICENSE_PARSE_FAILURE = 26 [(metadata) = { exit_code: 1 }];
+    DISTRIBUTIONS_PARSE_FAILURE = 27 [(metadata) = { exit_code: 1 }];
+    LABEL_CROSSES_PACKAGE_BOUNDARY = 28 [(metadata) = { exit_code: 1 }];
+    // Failure while evaluating or applying @_builtins injection. Since the
+    // builtins .bzl files are always packaged with Blaze in production, a
+    // failure here generally indicates a bug in Blaze.
+    BUILTINS_INJECTION_FAILURE = 29 [(metadata) = { exit_code: 1 }];
+    SYMLINK_CYCLE_OR_INFINITE_EXPANSION = 30 [(metadata) = { exit_code: 1 }];
+    OTHER_IO_EXCEPTION = 31 [(metadata) = { exit_code: 36 }];
+    BAD_REPO_FILE = 32 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message Toolchain {
+  enum Code {
+    TOOLCHAIN_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    MISSING_PROVIDER = 1 [(metadata) = { exit_code: 1 }];
+    INVALID_CONSTRAINT_VALUE = 2 [(metadata) = { exit_code: 1 }];
+    INVALID_PLATFORM_VALUE = 3 [(metadata) = { exit_code: 1 }];
+    INVALID_TOOLCHAIN = 4 [(metadata) = { exit_code: 1 }];
+    NO_MATCHING_EXECUTION_PLATFORM = 5 [(metadata) = { exit_code: 1 }];
+    NO_MATCHING_TOOLCHAIN = 6 [(metadata) = { exit_code: 1 }];
+    INVALID_TOOLCHAIN_TYPE = 7 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message StarlarkLoading {
+  enum Code {
+    STARLARK_LOADING_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    CYCLE = 1 [(metadata) = { exit_code: 1 }];
+    COMPILE_ERROR = 2 [(metadata) = { exit_code: 1 }];
+    PARSE_ERROR = 3 [(metadata) = { exit_code: 1 }];
+    EVAL_ERROR = 4 [(metadata) = { exit_code: 1 }];
+    CONTAINING_PACKAGE_NOT_FOUND = 5 [(metadata) = { exit_code: 1 }];
+    PACKAGE_NOT_FOUND = 6 [(metadata) = { exit_code: 1 }];
+    IO_ERROR = 7 [(metadata) = { exit_code: 1 }];
+    LABEL_CROSSES_PACKAGE_BOUNDARY = 8 [(metadata) = { exit_code: 1 }];
+    BUILTINS_ERROR = 9 [(metadata) = { exit_code: 1 }];
+    VISIBILITY_ERROR = 10 [(metadata) = { exit_code: 1 }];
+  }
+
+  Code code = 1;
+}
+
+message ExternalDeps {
+  enum Code {
+    EXTERNAL_DEPS_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    MODULE_NOT_FOUND = 1 [(metadata) = { exit_code: 48 }];
+    BAD_MODULE = 2 [(metadata) = { exit_code: 48 }];
+    VERSION_RESOLUTION_ERROR = 3 [(metadata) = { exit_code: 48 }];
+    INVALID_REGISTRY_URL = 4 [(metadata) = { exit_code: 48 }];
+    ERROR_ACCESSING_REGISTRY = 5 [(metadata) = { exit_code: 32 }];
+    INVALID_EXTENSION_IMPORT = 6 [(metadata) = { exit_code: 48 }];
+    BAD_LOCKFILE = 7 [(metadata) = { exit_code: 48 }];
+  }
+
+  Code code = 1;
+}
+
+message DiffAwareness {
+  enum Code {
+    DIFF_AWARENESS_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    DIFF_STAT_FAILED = 1 [(metadata) = { exit_code: 36 }];
+  }
+
+  Code code = 1;
+}
+
+message ModCommand {
+  enum Code {
+    MOD_COMMAND_UNKNOWN = 0 [(metadata) = { exit_code: 37 }];
+    MISSING_ARGUMENTS = 1 [(metadata) = { exit_code: 2 }];
+    TOO_MANY_ARGUMENTS = 2 [(metadata) = { exit_code: 2 }];
+    INVALID_ARGUMENTS = 3 [(metadata) = { exit_code: 2 }];
+    BUILDOZER_FAILED = 4 [(metadata) = { exit_code: 2 }];
+  }
+
+  Code code = 1;
+}
diff --git a/nativelink-proto/src/main/protobuf/invocation_policy.proto b/nativelink-proto/src/main/protobuf/invocation_policy.proto
new file mode 100644
index 000000000..56e3cc0c2
--- /dev/null
+++ b/nativelink-proto/src/main/protobuf/invocation_policy.proto
@@ -0,0 +1,207 @@
+// Copyright 2015 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto2";
+
+package blaze.invocation_policy;
+
+import "src/main/protobuf/strategy_policy.proto";
+
+// option java_api_version = 2;
+option java_package = "com.google.devtools.build.lib.runtime.proto";
+
+// The --invocation_policy flag takes a base64-encoded binary-serialized or text
+// formatted InvocationPolicy message.
+message InvocationPolicy {
+  // Order matters.
+  // After expanding policies on expansion flags or flags with implicit
+  // requirements, only the final policy on a specific flag will be enforced
+  // onto the user's command line.
+  repeated FlagPolicy flag_policies = 1;
+
+  optional blaze.strategy_policy.StrategyPolicy strategy_policy = 2;
+}
+
+// A policy for controlling the value of a flag.
+message FlagPolicy {
+  // The name of the flag to enforce this policy on.
+  //
+  // Note that this should be the full name of the flag, not the abbreviated
+  // name of the flag. If the user specifies the abbreviated name of a flag,
+  // that flag will be matched using its full name.
+  //
+  // The "no" prefix will not be parsed, so for boolean flags, use
+  // the flag's full name and explicitly set it to true or false.
+  optional string flag_name = 1;
+
+  // If set, this flag policy is applied only if one of the given commands or a
+  // command that inherits from one of the given commands is being run. For
+  // instance, if "build" is one of the commands here, then this policy will
+  // apply to any command that inherits from build, such as info, coverage, or
+  // test. If empty, this flag policy is applied for all commands. This allows
+  // the policy setter to add all policies to the proto without having to
+  // determine which Bazel command the user is actually running. Additionally,
+  // Bazel allows multiple flags to be defined by the same name, and the
+  // specific flag definition is determined by the command.
+  repeated string commands = 2;
+
+  oneof operation {
+    SetValue set_value = 3;
+    UseDefault use_default = 4;
+    DisallowValues disallow_values = 5;
+    AllowValues allow_values = 6;
+  }
+}
+
+message SetValue {
+  // Use this value for the specified flag, overriding any default or user-set
+  // value (unless behavior = APPEND for repeatable flags).
+  //
+  // This field is repeated for repeatable flags. It is an error to set
+  // multiple values for a flag that is not actually a repeatable flag.
+  // This requires at least 1 value, if even the empty string.
+  //
+  // If the flag allows multiple values, all of its values are replaced with the
+  // value or values from the policy (i.e., no diffing or merging is performed),
+  // unless behavior = APPEND (see below).
+  //
+  // Note that some flags are tricky. For example, some flags look like boolean
+  // flags, but are actually Void expansion flags that expand into other flags.
+  // The Bazel flag parser will accept "--void_flag=false", but because
+  // the flag is Void, the "=false" is ignored. It can get even trickier, like
+  // "--novoid_flag" which is also an expansion flag with the type Void whose
+  // name is explicitly "novoid_flag" and which expands into other flags that
+  // are the opposite of "--void_flag". For expansion flags, it's best to
+  // explicitly override the flags they expand into.
+  //
+  // Other flags may be differently tricky: A flag could have a converter that
+  // converts some string to a list of values, but that flag may not itself have
+  // allowMultiple set to true.
+  //
+  // An example is "--test_tag_filters": this flag sets its converter to
+  // CommaSeparatedOptionListConverter, but does not set allowMultiple to true.
+  // So "--test_tag_filters=foo,bar" results in ["foo", "bar"], however
+  // "--test_tag_filters=foo --test_tag_filters=bar" results in just ["bar"]
+  // since the 2nd value overrides the 1st.
+  //
+  // Similarly, "--test_tag_filters=foo,bar --test_tag_filters=baz,qux" results
+  // in ["baz", "qux"]. For flags like these, the policy should specify
+  // "foo,bar" instead of separately specifying "foo" and "bar" so that the
+  // converter is appropriately invoked.
+  //
+  // Note that the opposite is not necessarily
+  // true: for a flag that specifies allowMultiple=true, "--flag=foo,bar"
+  // may fail to parse or result in an unexpected value.
+  repeated string flag_value = 1;
+
+  // Obsolete overridable and append fields.
+  reserved 2, 3;
+
+  enum Behavior {
+    UNDEFINED = 0;
+    // Change the flag value but allow it to be overridden by explicit settings
+    // from command line/config expansion/rc files.
+    // Matching old flag values: append = false, overridable = true.
+    ALLOW_OVERRIDES = 1;
+    // Append a new value for a repeatable flag, leave old values and allow
+    // further overrides.
+    // Matching old flag values: append = true, overridable = false.
+    APPEND = 2;
+    // Set a final value of the flag. Any overrides provided by the user for
+    // this flag will be ignored.
+    // Matching old flag values: append = false, overridable = false.
+    FINAL_VALUE_IGNORE_OVERRIDES = 3;
+  }
+
+  // Defines how invocation policy should interact with user settings for the
+  // same flag.
+  optional Behavior behavior = 4;
+}
+
+message UseDefault {
+  // Use the default value of the flag, as defined by Bazel (or equivalently, do
+  // not allow the user to set this flag).
+  //
+  // Note on implementation: UseDefault sets the default by clearing the flag,
+  // so that when the value is requested and no flag is found, the flag parser
+  // returns the default. This is mostly relevant for expansion flags: it will
+  // erase user values in *all* flags that the expansion flag expands to. Only
+  // use this on expansion flags if this is acceptable behavior. Since the last
+  // policy wins, later policies on this same flag will still remove the
+  // expanded UseDefault, so there is a way around, but it's really best not to
+  // use this on expansion flags at all.
+}
+
+message DisallowValues {
+  // Obsolete new_default_value field.
+  reserved 2;
+
+  // It is an error for the user to use any of these values (that is, the Bazel
+  // command will fail), unless new_value or use_default is set.
+  //
+  // For repeatable flags, if any one of the values in the flag matches a value
+  // in the list of disallowed values, an error is thrown.
+  //
+  // Care must be taken for flags with complicated converters. For example,
+  // it's possible for a repeated flag to be of type List<List<T>>, so that
+  // "--foo=a,b --foo=c,d" results in foo=[["a","b"], ["c", "d"]]. In this case,
+  // it is not possible to disallow just "b", nor will ["b", "a"] match, nor
+  // will ["b", "c"] (but ["a", "b"] will still match).
+  repeated string disallowed_values = 1;
+
+  oneof replacement_value {
+    // If set and if the value of the flag is disallowed (including the default
+    // value of the flag if the user doesn't specify a value), use this value as
+    // the value of the flag instead of raising an error. This does not apply to
+    // repeatable flags and is ignored if the flag is a repeatable flag.
+    string new_value = 3;
+
+    // If set and if the value of the flag is disallowed, use the default value
+    // of the flag instead of raising an error. Unlike new_value, this works for
+    // repeatable flags, but note that the default value for repeatable flags is
+    // always empty.
+    //
+    // Note that it is an error to disallow the default value of the flag and
+    // to set use_default, unless the flag is a repeatable flag where the
+    // default value is always the empty list.
+    UseDefault use_default = 4;
+  }
+}
+
+message AllowValues {
+  // Obsolete new_default_value field.
+  reserved 2;
+
+  // It is an error for the user to use any value not in this list, unless
+  // new_value or use_default is set.
+  repeated string allowed_values = 1;
+
+  oneof replacement_value {
+    // If set and if the value of the flag is disallowed (including the default
+    // value of the flag if the user doesn't specify a value), use this value as
+    // the value of the flag instead of raising an error. This does not apply to
+    // repeatable flags and is ignored if the flag is a repeatable flag.
+    string new_value = 3;
+
+    // If set and if the value of the flag is disallowed, use the default value
+    // of the flag instead of raising an error. Unlike new_value, this works for
+    // repeatable flags, but note that the default value for repeatable flags is
+    // always empty.
+    //
+    // Note that it is an error to disallow the default value of the flag and
+    // to set use_default, unless the flag is a repeatable flag where the
+    // default value is always the empty list.
+    UseDefault use_default = 4;
+  }
+}
diff --git a/nativelink-proto/src/main/protobuf/option_filters.proto b/nativelink-proto/src/main/protobuf/option_filters.proto
new file mode 100644
index 000000000..629e00688
--- /dev/null
+++ b/nativelink-proto/src/main/protobuf/option_filters.proto
@@ -0,0 +1,61 @@
+// Copyright 2017 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+syntax = "proto3";
+
+package options;
+
+// option java_api_version = 2;
+option java_package = "com.google.devtools.common.options.proto";
+
+// IMPORTANT NOTE: These two enums must be kept in sync with their Java
+// equivalents in src/main/java/com/google/devtools/common/options.
+// Changing this proto has specific compatibility requirements, please see the
+// Java documentation for details.
+
+// Docs in java enum.
+enum OptionEffectTag {
+  // This option's effect or intent is unknown.
+  UNKNOWN = 0;
+
+  // This flag has literally no effect.
+  NO_OP = 1;
+
+  LOSES_INCREMENTAL_STATE = 2;
+  CHANGES_INPUTS = 3;
+  AFFECTS_OUTPUTS = 4;
+  BUILD_FILE_SEMANTICS = 5;
+  BAZEL_INTERNAL_CONFIGURATION = 6;
+  LOADING_AND_ANALYSIS = 7;
+  EXECUTION = 8;
+  HOST_MACHINE_RESOURCE_OPTIMIZATIONS = 9;
+  EAGERNESS_TO_EXIT = 10;
+  BAZEL_MONITORING = 11;
+  TERMINAL_OUTPUT = 12;
+  ACTION_COMMAND_LINES = 13;
+  TEST_RUNNER = 14;
+}
+
+// Docs in java enum.
+enum OptionMetadataTag {
+  EXPERIMENTAL = 0;
+  INCOMPATIBLE_CHANGE = 1;
+  DEPRECATED = 2;
+  HIDDEN = 3;
+  INTERNAL = 4;
+  reserved "TRIGGERED_BY_ALL_INCOMPATIBLE_CHANGES";
+  reserved 5;
+  reserved "EXPLICIT_IN_OUTPUT_PATH";
+  reserved 6;
+  IMMUTABLE = 7;
+}
diff --git a/nativelink-proto/src/main/protobuf/strategy_policy.proto b/nativelink-proto/src/main/protobuf/strategy_policy.proto
new file mode 100644
index 000000000..0f58c9b81
--- /dev/null
+++ b/nativelink-proto/src/main/protobuf/strategy_policy.proto
@@ -0,0 +1,67 @@
+// Copyright 2022 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto2";
+
+package blaze.strategy_policy;
+
+option java_multiple_files = true;
+// option java_api_version = 2;
+option java_package = "com.google.devtools.build.lib.runtime.proto";
+
+// Provides control over what strategies (local, remote, etc) may be used.
+//
+// An empty policies (e.g. unset) implies no enforcement, anything is allowed.
+//
+// Policies are enforced against both user-provided values (flags) and
+// application-internal defaults. The latter is useful for guarding against
+// unexpectedly hard-coded defaults.
+//
+// Sample usage to allow everything to execute remotely, while only allowing
+// genrules to execute locally:
+//
+//   strategy_policy {
+//     mnemonic_policy {
+//       default_allowlist: ["remote"]
+//       strategy_allowlist: [
+//         { mnemonic: "Genrule" strategy: ["local"] }
+//       ]
+//     }
+//   }
+message StrategyPolicy {
+  // Controls per-mnemonic policies for regular spawn/action execution. Relevant
+  // command-line flags this controls include --strategy and --genrule_strategy.
+  optional MnemonicPolicy mnemonic_policy = 1;
+
+  // Controls per-mnemonic policies for the remote execution leg of dynamic
+  // execution. Relevant flag is --dynamic_remote_strategy.
+  optional MnemonicPolicy dynamic_remote_policy = 2;
+
+  // Controls per-mnemonic policies for the local execution leg of dynamic
+  // execution. Relevant flag is --dynamic_local_strategy.
+  optional MnemonicPolicy dynamic_local_policy = 3;
+}
+
+message MnemonicPolicy {
+  // Default allowed strategies for mnemonics not present in `strategy` list.
+  repeated string default_allowlist = 1;
+
+  repeated StrategiesForMnemonic strategy_allowlist = 2;
+}
+
+// Per-mnemonic allowlist settings.
+message StrategiesForMnemonic {
+  optional string mnemonic = 1;
+  repeated string strategy = 2;
+}
diff --git a/nativelink-service/src/ac_server.rs b/nativelink-service/src/ac_server.rs
index cd6be0f8e..a54071cb3 100644
--- a/nativelink-service/src/ac_server.rs
+++ b/nativelink-service/src/ac_server.rs
@@ -30,6 +30,7 @@ use nativelink_store::grpc_store::GrpcStore;
 use nativelink_store::store_manager::StoreManager;
 use nativelink_util::common::DigestInfo;
 use nativelink_util::digest_hasher::make_ctx_for_hash_func;
+use nativelink_util::origin_event::OriginEventContext;
 use nativelink_util::store_trait::{Store, StoreLike};
 use prost::Message;
 use tonic::{Request, Response, Status};
@@ -103,9 +104,18 @@ impl AcServer {
             return grpc_store.get_action_result(Request::new(request)).await;
         }
 
-        Ok(Response::new(
-            get_and_decode_digest::<ActionResult>(&store_info.store, digest.into()).await?,
-        ))
+        let res = get_and_decode_digest::<ActionResult>(&store_info.store, digest.into()).await;
+        match res {
+            Ok(action_result) => Ok(Response::new(action_result)),
+            Err(mut e) => {
+                if e.code == Code::NotFound {
+                    // `get_action_result` is frequent to get NotFound errors, so remove all
+                    // messages to save space.
+                    e.messages.clear();
+                }
+                Err(e)
+            }
+        }
     }
 
     async fn inner_update_action_result(
@@ -171,6 +181,8 @@ impl ActionCache for AcServer {
         grpc_request: Request<GetActionResultRequest>,
     ) -> Result<Response<ActionResult>, Status> {
         let request = grpc_request.into_inner();
+        let ctx = OriginEventContext::new(|| &request).await;
+
         let resp = make_ctx_for_hash_func(request.digest_function)
             .err_tip(|| "In AcServer::get_action_result")?
             .wrap_async(
@@ -179,11 +191,12 @@ impl ActionCache for AcServer {
             )
             .await;
 
-        // let resp = self.inner_get_action_result(grpc_request).await;
         if resp.is_err() && resp.as_ref().err().unwrap().code != Code::NotFound {
             event!(Level::ERROR, return = ?resp);
         }
-        return resp.map_err(Into::into);
+        let resp = resp.map_err(Into::into);
+        ctx.emit(|| &resp).await;
+        resp
     }
 
     #[allow(clippy::blocks_in_conditions)]
@@ -199,13 +212,16 @@ impl ActionCache for AcServer {
         grpc_request: Request<UpdateActionResultRequest>,
     ) -> Result<Response<ActionResult>, Status> {
         let request = grpc_request.into_inner();
-        make_ctx_for_hash_func(request.digest_function)
+        let ctx = OriginEventContext::new(|| &request).await;
+        let resp = make_ctx_for_hash_func(request.digest_function)
             .err_tip(|| "In AcServer::update_action_result")?
             .wrap_async(
                 error_span!("ac_server_update_action_result"),
                 self.inner_update_action_result(request),
             )
             .await
-            .map_err(Into::into)
+            .map_err(Into::into);
+        ctx.emit(|| &resp).await;
+        resp
     }
 }
diff --git a/nativelink-service/src/bep_server.rs b/nativelink-service/src/bep_server.rs
index 7cfa9172f..717b101cc 100644
--- a/nativelink-service/src/bep_server.rs
+++ b/nativelink-service/src/bep_server.rs
@@ -18,7 +18,9 @@ use std::pin::Pin;
 use bytes::BytesMut;
 use futures::stream::unfold;
 use futures::Stream;
+use nativelink_config::cas_server::IdentityHeaderSpec;
 use nativelink_error::{Error, ResultExt};
+use nativelink_proto::com::github::trace_machina::nativelink::events::{bep_event, BepEvent};
 use nativelink_proto::google::devtools::build::v1::publish_build_event_server::{
     PublishBuildEvent, PublishBuildEventServer,
 };
@@ -29,11 +31,21 @@ use nativelink_proto::google::devtools::build::v1::{
 use nativelink_store::store_manager::StoreManager;
 use nativelink_util::store_trait::{Store, StoreDriver, StoreKey, StoreLike};
 use prost::Message;
+use tonic::metadata::MetadataMap;
 use tonic::{Request, Response, Result, Status, Streaming};
 use tracing::{instrument, Level};
 
+const BEP_EVENT_VERSION: u32 = 0;
+
+/// Default identity header name.
+/// Note: If this is changed, the default value in the [`IdentityHeaderSpec`]
+// TODO(allada) This has a mirror in origin_event_middleware.rs.
+// We should consolidate these.
+const DEFAULT_IDENTITY_HEADER: &str = "x-identity";
+
 pub struct BepServer {
     store: Store,
+    identity_header: IdentityHeaderSpec,
 }
 
 impl BepServer {
@@ -45,16 +57,45 @@ impl BepServer {
             .get_store(&config.store)
             .err_tip(|| format!("Expected store {} to exist in store manager", &config.store))?;
 
-        Ok(Self { store })
+        let mut identity_header = config.experimental_identity_header.clone();
+        if identity_header.header_name.is_none() {
+            identity_header.header_name = Some(DEFAULT_IDENTITY_HEADER.to_string());
+        }
+
+        Ok(Self {
+            store,
+            identity_header,
+        })
     }
 
     pub fn into_service(self) -> PublishBuildEventServer<BepServer> {
         PublishBuildEventServer::new(self)
     }
 
+    fn get_identity(&self, request_metadata: &MetadataMap) -> Result<Option<String>, Status> {
+        let header_name = self
+            .identity_header
+            .header_name
+            .as_deref()
+            .unwrap_or(DEFAULT_IDENTITY_HEADER);
+        if header_name.is_empty() {
+            return Ok(None);
+        }
+        let identity = request_metadata
+            .get(header_name)
+            .and_then(|header| header.to_str().ok().map(str::to_string));
+        if identity.is_none() && self.identity_header.required {
+            return Err(Status::unauthenticated(format!(
+                "'{header_name}' header is required"
+            )));
+        }
+        Ok(identity)
+    }
+
     async fn inner_publish_lifecycle_event(
         &self,
         request: PublishLifecycleEventRequest,
+        identity: Option<String>,
     ) -> Result<Response<()>, Error> {
         let build_event = request
             .build_event
@@ -67,19 +108,23 @@ impl BepServer {
 
         let sequence_number = build_event.sequence_number;
 
+        let store_key = StoreKey::Str(Cow::Owned(format!(
+            "BepEvent:{}:{}:{}",
+            &stream_id.build_id, &stream_id.invocation_id, sequence_number,
+        )));
+
+        let bep_event = BepEvent {
+            version: BEP_EVENT_VERSION,
+            identity: identity.unwrap_or_default(),
+            event: Some(bep_event::Event::LifecycleEvent(request)),
+        };
         let mut buf = BytesMut::new();
-        request
+        bep_event
             .encode(&mut buf)
             .err_tip(|| "Could not encode PublishLifecycleEventRequest proto")?;
 
         self.store
-            .update_oneshot(
-                StoreKey::Str(Cow::Owned(format!(
-                    "LifecycleEvent:{}:{}:{}",
-                    &stream_id.build_id, &stream_id.invocation_id, sequence_number,
-                ))),
-                buf.freeze(),
-            )
+            .update_oneshot(store_key, buf.freeze())
             .await
             .err_tip(|| "Failed to store PublishLifecycleEventRequest")?;
 
@@ -89,10 +134,12 @@ impl BepServer {
     async fn inner_publish_build_tool_event_stream(
         &self,
         stream: Streaming<PublishBuildToolEventStreamRequest>,
+        identity: Option<String>,
     ) -> Result<Response<PublishBuildToolEventStreamStream>, Error> {
         async fn process_request(
             store: Pin<&dyn StoreDriver>,
             request: PublishBuildToolEventStreamRequest,
+            identity: String,
         ) -> Result<PublishBuildToolEventStreamResponse, Status> {
             let ordered_build_event = request
                 .ordered_build_event
@@ -101,20 +148,26 @@ impl BepServer {
             let stream_id = ordered_build_event
                 .stream_id
                 .as_ref()
-                .err_tip(|| "Expected stream_id to be set")?;
+                .err_tip(|| "Expected stream_id to be set")?
+                .clone();
 
             let sequence_number = ordered_build_event.sequence_number;
 
+            let bep_event = BepEvent {
+                version: BEP_EVENT_VERSION,
+                identity,
+                event: Some(bep_event::Event::BuildToolEvent(request)),
+            };
             let mut buf = BytesMut::new();
 
-            request
+            bep_event
                 .encode(&mut buf)
                 .err_tip(|| "Could not encode PublishBuildToolEventStreamRequest proto")?;
 
             store
                 .update_oneshot(
                     StoreKey::Str(Cow::Owned(format!(
-                        "BuildToolEventStream:{}:{}:{}",
+                        "BepEvent:{}:{}:{}",
                         &stream_id.build_id, &stream_id.invocation_id, sequence_number,
                     ))),
                     buf.freeze(),
@@ -131,6 +184,7 @@ impl BepServer {
         struct State {
             store: Store,
             stream: Streaming<PublishBuildToolEventStreamRequest>,
+            identity: String,
         }
 
         let response_stream =
@@ -138,6 +192,7 @@ impl BepServer {
                 Some(State {
                     store: self.store.clone(),
                     stream,
+                    identity: identity.unwrap_or_default(),
                 }),
                 move |maybe_state| async move {
                     let mut state = maybe_state?;
@@ -149,12 +204,16 @@ impl BepServer {
                             Ok(None) => return None,
                             Err(e) => return Some((Err(e.into()), None)),
                         };
-                    process_request(state.store.as_store_driver_pin(), request)
-                        .await
-                        .map_or_else(
-                            |e| Some((Err(e), None)),
-                            |response| Some((Ok(response), Some(state))),
-                        )
+                    process_request(
+                        state.store.as_store_driver_pin(),
+                        request,
+                        state.identity.clone(),
+                    )
+                    .await
+                    .map_or_else(
+                        |e| Some((Err(e), None)),
+                        |response| Some((Ok(response), Some(state))),
+                    )
                 },
             );
 
@@ -182,7 +241,8 @@ impl PublishBuildEvent for BepServer {
         &self,
         grpc_request: Request<PublishLifecycleEventRequest>,
     ) -> Result<Response<()>, Status> {
-        self.inner_publish_lifecycle_event(grpc_request.into_inner())
+        let identity = self.get_identity(grpc_request.metadata())?;
+        self.inner_publish_lifecycle_event(grpc_request.into_inner(), identity)
             .await
             .map_err(Error::into)
     }
@@ -198,7 +258,8 @@ impl PublishBuildEvent for BepServer {
         &self,
         grpc_request: Request<Streaming<PublishBuildToolEventStreamRequest>>,
     ) -> Result<Response<Self::PublishBuildToolEventStreamStream>, Status> {
-        self.inner_publish_build_tool_event_stream(grpc_request.into_inner())
+        let identity = self.get_identity(grpc_request.metadata())?;
+        self.inner_publish_build_tool_event_stream(grpc_request.into_inner(), identity)
             .await
             .map_err(Error::into)
     }
diff --git a/nativelink-service/src/bytestream_server.rs b/nativelink-service/src/bytestream_server.rs
index c0ff436f9..6a8bdaf07 100644
--- a/nativelink-service/src/bytestream_server.rs
+++ b/nativelink-service/src/bytestream_server.rs
@@ -42,6 +42,7 @@ use nativelink_util::common::DigestInfo;
 use nativelink_util::digest_hasher::{
     default_digest_hasher_func, make_ctx_for_hash_func, DigestHasherFunc,
 };
+use nativelink_util::origin_event::OriginEventContext;
 use nativelink_util::proto_stream_utils::WriteRequestStreamWrapper;
 use nativelink_util::resource_info::ResourceInfo;
 use nativelink_util::spawn;
@@ -269,7 +270,7 @@ impl ByteStreamServer {
         store: Store,
         digest: DigestInfo,
         read_request: ReadRequest,
-    ) -> Result<Response<ReadStream>, Error> {
+    ) -> Result<impl Stream<Item = Result<ReadResponse, Status>> + Send + 'static, Error> {
         struct ReaderState {
             max_bytes_per_stream: usize,
             rx: DropCloserReadHalf,
@@ -308,7 +309,7 @@ impl ByteStreamServer {
 
         let read_stream_span = error_span!("read_stream");
 
-        Ok(Response::new(Box::pin(unfold(state, move |state| {
+        Ok(Box::pin(unfold(state, move |state| {
             async {
             let mut state = state?; // If None our stream is done.
             let mut response = ReadResponse::default();
@@ -322,7 +323,7 @@ impl ByteStreamServer {
                                 Ok(bytes) => {
                                     if bytes.is_empty() {
                                         // EOF.
-                                        return Some((Ok(response), None));
+                                        return None;
                                     }
                                     if bytes.len() > state.max_bytes_per_stream {
                                         let err = make_err!(Code::Internal, "Returned store size was larger than read size");
@@ -381,7 +382,7 @@ impl ByteStreamServer {
             }
             Some((Ok(response), Some(state)))
         }.instrument(read_stream_span.clone())
-        }))))
+        })))
     }
 
     // We instrument tracing here as well as below because `stream` has a hash on it
@@ -397,10 +398,12 @@ impl ByteStreamServer {
         &self,
         store: Store,
         digest: DigestInfo,
-        stream: WriteRequestStreamWrapper<Streaming<WriteRequest>>,
+        stream: WriteRequestStreamWrapper<impl Stream<Item = Result<WriteRequest, Status>> + Unpin>,
     ) -> Result<Response<WriteResponse>, Error> {
         async fn process_client_stream(
-            mut stream: WriteRequestStreamWrapper<Streaming<WriteRequest>>,
+            mut stream: WriteRequestStreamWrapper<
+                impl Stream<Item = Result<WriteRequest, Status>> + Unpin,
+            >,
             tx: &mut DropCloserWriteHalf,
             outer_bytes_received: &Arc<AtomicU64>,
             expected_size: u64,
@@ -589,6 +592,7 @@ impl ByteStream for ByteStreamServer {
         grpc_request: Request<ReadRequest>,
     ) -> Result<Response<Self::ReadStream>, Status> {
         let read_request = grpc_request.into_inner();
+        let ctx = OriginEventContext::new(|| &read_request).await;
 
         let resource_info = ResourceInfo::new(&read_request.resource_name, false)?;
         let instance_name = resource_info.instance_name.as_ref();
@@ -603,7 +607,9 @@ impl ByteStream for ByteStreamServer {
         // If we are a GrpcStore we shortcut here, as this is a special store.
         if let Some(grpc_store) = store.downcast_ref::<GrpcStore>(Some(digest.into())) {
             let stream = grpc_store.read(Request::new(read_request)).await?;
-            return Ok(Response::new(Box::pin(stream)));
+            let resp = Ok(Response::new(ctx.wrap_stream(stream)));
+            ctx.emit(|| &resp).await;
+            return resp;
         }
 
         let digest_function = resource_info.digest_function.as_deref().map_or_else(
@@ -619,11 +625,15 @@ impl ByteStream for ByteStreamServer {
             )
             .await
             .err_tip(|| "In ByteStreamServer::read")
+            .map(|stream| -> Response<Self::ReadStream> {
+                Response::new(Box::pin(ctx.wrap_stream(stream)))
+            })
             .map_err(Into::into);
 
         if resp.is_ok() {
             event!(Level::DEBUG, return = "Ok(<stream>)");
         }
+        ctx.emit(|| &resp).await;
         resp
     }
 
@@ -638,7 +648,9 @@ impl ByteStream for ByteStreamServer {
         &self,
         grpc_request: Request<Streaming<WriteRequest>>,
     ) -> Result<Response<WriteResponse>, Status> {
-        let stream = WriteRequestStreamWrapper::from(grpc_request.into_inner())
+        let request = grpc_request.into_inner();
+        let ctx = OriginEventContext::new(|| &request).await;
+        let stream = WriteRequestStreamWrapper::from(ctx.wrap_stream(request))
             .await
             .err_tip(|| "Could not unwrap first stream message")
             .map_err(Into::<Status>::into)?;
@@ -658,7 +670,9 @@ impl ByteStream for ByteStreamServer {
 
         // If we are a GrpcStore we shortcut here, as this is a special store.
         if let Some(grpc_store) = store.downcast_ref::<GrpcStore>(Some(digest.into())) {
-            return grpc_store.write(stream).await.map_err(Into::into);
+            let resp = grpc_store.write(stream).await.map_err(Into::into);
+            ctx.emit(|| &resp).await;
+            return resp;
         }
 
         let digest_function = stream
@@ -670,7 +684,7 @@ impl ByteStream for ByteStreamServer {
                 DigestHasherFunc::try_from,
             )?;
 
-        make_ctx_for_hash_func(digest_function)
+        let resp = make_ctx_for_hash_func(digest_function)
             .err_tip(|| "In BytestreamServer::write")?
             .wrap_async(
                 error_span!("bytestream_write"),
@@ -678,7 +692,9 @@ impl ByteStream for ByteStreamServer {
             )
             .await
             .err_tip(|| "In ByteStreamServer::write")
-            .map_err(Into::into)
+            .map_err(Into::into);
+        ctx.emit(|| &resp).await;
+        resp
     }
 
     #[allow(clippy::blocks_in_conditions)]
@@ -693,9 +709,14 @@ impl ByteStream for ByteStreamServer {
         &self,
         grpc_request: Request<QueryWriteStatusRequest>,
     ) -> Result<Response<QueryWriteStatusResponse>, Status> {
-        self.inner_query_write_status(&grpc_request.into_inner())
+        let request = grpc_request.into_inner();
+        let ctx = OriginEventContext::new(|| &request).await;
+        let resp = self
+            .inner_query_write_status(&request)
             .await
             .err_tip(|| "Failed on query_write_status() command")
-            .map_err(Into::into)
+            .map_err(Into::into);
+        ctx.emit(|| &resp).await;
+        resp
     }
 }
diff --git a/nativelink-service/src/capabilities_server.rs b/nativelink-service/src/capabilities_server.rs
index 99b14931f..e418c8102 100644
--- a/nativelink-service/src/capabilities_server.rs
+++ b/nativelink-service/src/capabilities_server.rs
@@ -30,6 +30,7 @@ use nativelink_proto::build::bazel::remote::execution::v2::{
 use nativelink_proto::build::bazel::semver::SemVer;
 use nativelink_util::digest_hasher::default_digest_hasher_func;
 use nativelink_util::operation_state_manager::ClientStateManager;
+use nativelink_util::origin_event::OriginEventContext;
 use tonic::{Request, Response, Status};
 use tracing::{event, instrument, Level};
 
@@ -102,7 +103,10 @@ impl Capabilities for CapabilitiesServer {
         &self,
         grpc_request: Request<GetCapabilitiesRequest>,
     ) -> Result<Response<ServerCapabilities>, Status> {
-        let instance_name = grpc_request.into_inner().instance_name;
+        let request = grpc_request.into_inner();
+        let ctx = OriginEventContext::new(|| &request).await;
+
+        let instance_name = request.instance_name;
         let maybe_supported_node_properties = self
             .supported_node_properties_for_instance
             .get(&instance_name);
@@ -153,6 +157,7 @@ impl Capabilities for CapabilitiesServer {
                 prerelease: String::new(),
             }),
         };
+        ctx.emit(|| &resp).await;
         Ok(Response::new(resp))
     }
 }
diff --git a/nativelink-service/src/cas_server.rs b/nativelink-service/src/cas_server.rs
index 9b063350f..63f1650fd 100644
--- a/nativelink-service/src/cas_server.rs
+++ b/nativelink-service/src/cas_server.rs
@@ -18,7 +18,7 @@ use std::pin::Pin;
 
 use bytes::Bytes;
 use futures::stream::{FuturesUnordered, Stream};
-use futures::TryStreamExt;
+use futures::{StreamExt, TryStreamExt};
 use nativelink_config::cas_server::{CasStoreConfig, InstanceName};
 use nativelink_error::{error_if, make_input_err, Code, Error, ResultExt};
 use nativelink_proto::build::bazel::remote::execution::v2::content_addressable_storage_server::{
@@ -35,6 +35,7 @@ use nativelink_store::grpc_store::GrpcStore;
 use nativelink_store::store_manager::StoreManager;
 use nativelink_util::common::DigestInfo;
 use nativelink_util::digest_hasher::make_ctx_for_hash_func;
+use nativelink_util::origin_event::OriginEventContext;
 use nativelink_util::store_trait::{Store, StoreLike};
 use tonic::{Request, Response, Status};
 use tracing::{error_span, event, instrument, Level};
@@ -209,7 +210,7 @@ impl CasServer {
     async fn inner_get_tree(
         &self,
         request: GetTreeRequest,
-    ) -> Result<Response<GetTreeStream>, Error> {
+    ) -> Result<impl Stream<Item = Result<GetTreeResponse, Status>> + Send + 'static, Error> {
         let instance_name = &request.instance_name;
 
         let store = self
@@ -226,7 +227,7 @@ impl CasServer {
                 .get_tree(Request::new(request))
                 .await?
                 .into_inner();
-            return Ok(Response::new(Box::pin(stream)));
+            return Ok(stream.left_stream());
         }
         let root_digest: DigestInfo = request
             .root_digest
@@ -290,12 +291,13 @@ impl CasServer {
             String::new()
         };
 
-        Ok(Response::new(Box::pin(futures::stream::once(async {
+        Ok(futures::stream::once(async {
             Ok(GetTreeResponse {
                 directories,
                 next_page_token,
             })
-        }))))
+        })
+        .right_stream())
     }
 }
 
@@ -316,7 +318,8 @@ impl ContentAddressableStorage for CasServer {
         grpc_request: Request<FindMissingBlobsRequest>,
     ) -> Result<Response<FindMissingBlobsResponse>, Status> {
         let request = grpc_request.into_inner();
-        make_ctx_for_hash_func(request.digest_function)
+        let ctx = OriginEventContext::new(|| &request).await;
+        let resp = make_ctx_for_hash_func(request.digest_function)
             .err_tip(|| "In CasServer::find_missing_blobs")?
             .wrap_async(
                 error_span!("cas_server_find_missing_blobs"),
@@ -324,7 +327,9 @@ impl ContentAddressableStorage for CasServer {
             )
             .await
             .err_tip(|| "Failed on find_missing_blobs() command")
-            .map_err(Into::into)
+            .map_err(Into::into);
+        ctx.emit(|| &resp).await;
+        resp
     }
 
     #[allow(clippy::blocks_in_conditions)]
@@ -340,7 +345,8 @@ impl ContentAddressableStorage for CasServer {
         grpc_request: Request<BatchUpdateBlobsRequest>,
     ) -> Result<Response<BatchUpdateBlobsResponse>, Status> {
         let request = grpc_request.into_inner();
-        make_ctx_for_hash_func(request.digest_function)
+        let ctx = OriginEventContext::new(|| &request).await;
+        let resp = make_ctx_for_hash_func(request.digest_function)
             .err_tip(|| "In CasServer::batch_update_blobs")?
             .wrap_async(
                 error_span!("cas_server_batch_update_blobs"),
@@ -348,7 +354,9 @@ impl ContentAddressableStorage for CasServer {
             )
             .await
             .err_tip(|| "Failed on batch_update_blobs() command")
-            .map_err(Into::into)
+            .map_err(Into::into);
+        ctx.emit(|| &resp).await;
+        resp
     }
 
     #[allow(clippy::blocks_in_conditions)]
@@ -364,7 +372,8 @@ impl ContentAddressableStorage for CasServer {
         grpc_request: Request<BatchReadBlobsRequest>,
     ) -> Result<Response<BatchReadBlobsResponse>, Status> {
         let request = grpc_request.into_inner();
-        make_ctx_for_hash_func(request.digest_function)
+        let ctx = OriginEventContext::new(|| &request).await;
+        let resp = make_ctx_for_hash_func(request.digest_function)
             .err_tip(|| "In CasServer::batch_read_blobs")?
             .wrap_async(
                 error_span!("cas_server_batch_read_blobs"),
@@ -372,7 +381,9 @@ impl ContentAddressableStorage for CasServer {
             )
             .await
             .err_tip(|| "Failed on batch_read_blobs() command")
-            .map_err(Into::into)
+            .map_err(Into::into);
+        ctx.emit(|| &resp).await;
+        resp
     }
 
     #[allow(clippy::blocks_in_conditions)]
@@ -387,6 +398,7 @@ impl ContentAddressableStorage for CasServer {
         grpc_request: Request<GetTreeRequest>,
     ) -> Result<Response<Self::GetTreeStream>, Status> {
         let request = grpc_request.into_inner();
+        let ctx = OriginEventContext::new(|| &request).await;
         let resp = make_ctx_for_hash_func(request.digest_function)
             .err_tip(|| "In CasServer::get_tree")?
             .wrap_async(
@@ -395,10 +407,14 @@ impl ContentAddressableStorage for CasServer {
             )
             .await
             .err_tip(|| "Failed on get_tree() command")
+            .map(|stream| -> Response<Self::GetTreeStream> {
+                Response::new(ctx.wrap_stream(stream))
+            })
             .map_err(Into::into);
         if resp.is_ok() {
             event!(Level::DEBUG, return = "Ok(<stream>)");
         }
+        ctx.emit(|| &resp).await;
         resp
     }
 }
diff --git a/nativelink-service/src/execution_server.rs b/nativelink-service/src/execution_server.rs
index c4df4e788..b8faf1284 100644
--- a/nativelink-service/src/execution_server.rs
+++ b/nativelink-service/src/execution_server.rs
@@ -40,6 +40,7 @@ use nativelink_util::digest_hasher::{make_ctx_for_hash_func, DigestHasherFunc};
 use nativelink_util::operation_state_manager::{
     ActionStateResult, ClientStateManager, OperationFilter,
 };
+use nativelink_util::origin_event::OriginEventContext;
 use nativelink_util::store_trait::Store;
 use tonic::{Request, Response, Status};
 use tracing::{error_span, event, instrument, Level};
@@ -198,43 +199,39 @@ impl ExecutionServer {
     fn to_execute_stream(
         nl_client_operation_id: &NativelinkOperationId,
         action_listener: Box<dyn ActionStateResult>,
-    ) -> Response<ExecuteStream> {
+    ) -> impl Stream<Item = Result<Operation, Status>> + Send + 'static {
         let client_operation_id = OperationId::from(nl_client_operation_id.to_string());
-        let receiver_stream = Box::pin(unfold(
-            Some(action_listener),
-            move |maybe_action_listener| {
-                let client_operation_id = client_operation_id.clone();
-                async move {
-                    let mut action_listener = maybe_action_listener?;
-                    match action_listener.changed().await {
-                        Ok(action_update) => {
-                            event!(Level::INFO, ?action_update, "Execute Resp Stream");
-                            // If the action is finished we won't be sending any more updates.
-                            let maybe_action_listener = if action_update.stage.is_finished() {
-                                None
-                            } else {
-                                Some(action_listener)
-                            };
-                            Some((
-                                Ok(action_update.as_operation(client_operation_id)),
-                                maybe_action_listener,
-                            ))
-                        }
-                        Err(err) => {
-                            event!(Level::ERROR, ?err, "Error in action_listener stream");
-                            Some((Err(err.into()), None))
-                        }
+        unfold(Some(action_listener), move |maybe_action_listener| {
+            let client_operation_id = client_operation_id.clone();
+            async move {
+                let mut action_listener = maybe_action_listener?;
+                match action_listener.changed().await {
+                    Ok(action_update) => {
+                        event!(Level::INFO, ?action_update, "Execute Resp Stream");
+                        // If the action is finished we won't be sending any more updates.
+                        let maybe_action_listener = if action_update.stage.is_finished() {
+                            None
+                        } else {
+                            Some(action_listener)
+                        };
+                        Some((
+                            Ok(action_update.as_operation(client_operation_id)),
+                            maybe_action_listener,
+                        ))
+                    }
+                    Err(err) => {
+                        event!(Level::ERROR, ?err, "Error in action_listener stream");
+                        Some((Err(err.into()), None))
                     }
                 }
-            },
-        ));
-        tonic::Response::new(receiver_stream)
+            }
+        })
     }
 
     async fn inner_execute(
         &self,
         request: ExecuteRequest,
-    ) -> Result<Response<ExecuteStream>, Error> {
+    ) -> Result<impl Stream<Item = Result<Operation, Status>> + Send + 'static, Error> {
         let instance_name = request.instance_name;
 
         let instance_info = self
@@ -275,7 +272,7 @@ impl ExecutionServer {
             .await
             .err_tip(|| "Failed to schedule task")?;
 
-        Ok(Self::to_execute_stream(
+        Ok(Box::pin(Self::to_execute_stream(
             &NativelinkOperationId::new(
                 instance_name,
                 action_listener
@@ -286,14 +283,14 @@ impl ExecutionServer {
                     .clone(),
             ),
             action_listener,
-        ))
+        )))
     }
 
     async fn inner_wait_execution(
         &self,
-        request: Request<WaitExecutionRequest>,
-    ) -> Result<Response<ExecuteStream>, Status> {
-        let nl_operation_id = NativelinkOperationId::from_name(&request.into_inner().name)
+        request: WaitExecutionRequest,
+    ) -> Result<impl Stream<Item = Result<Operation, Status>> + Send + 'static, Status> {
+        let nl_operation_id = NativelinkOperationId::from_name(&request.name)
             .err_tip(|| "Failed to parse operation_id in ExecutionServer::wait_execution")?;
         let Some(instance_info) = self.instance_infos.get(&nl_operation_id.instance_name) else {
             return Err(Status::not_found(format!(
@@ -335,15 +332,20 @@ impl Execution for ExecutionServer {
         grpc_request: Request<ExecuteRequest>,
     ) -> Result<Response<ExecuteStream>, Status> {
         let request = grpc_request.into_inner();
-        make_ctx_for_hash_func(request.digest_function)
+        let ctx = OriginEventContext::new(|| &request).await;
+        let resp = make_ctx_for_hash_func(request.digest_function)
             .err_tip(|| "In ExecutionServer::execute")?
             .wrap_async(
                 error_span!("execution_server_execute"),
                 self.inner_execute(request),
             )
             .await
+            .map(|stream| ctx.wrap_stream(stream))
+            .map(Response::new)
             .err_tip(|| "Failed on execute() command")
-            .map_err(Into::into)
+            .map_err(Into::into);
+        ctx.emit(|| &resp).await;
+        resp
     }
 
     #[allow(clippy::blocks_in_conditions)]
@@ -357,10 +359,14 @@ impl Execution for ExecutionServer {
         &self,
         grpc_request: Request<WaitExecutionRequest>,
     ) -> Result<Response<ExecuteStream>, Status> {
+        let request = grpc_request.into_inner();
+        let ctx = OriginEventContext::new(|| &request).await;
         let resp = self
-            .inner_wait_execution(grpc_request)
+            .inner_wait_execution(request)
             .await
             .err_tip(|| "Failed on wait_execution() command")
+            .map(|stream| ctx.wrap_stream(stream))
+            .map(Response::new)
             .map_err(Into::into);
 
         if resp.is_ok() {
diff --git a/nativelink-service/tests/ac_server_test.rs b/nativelink-service/tests/ac_server_test.rs
index 065b5296a..ac7bb9b80 100644
--- a/nativelink-service/tests/ac_server_test.rs
+++ b/nativelink-service/tests/ac_server_test.rs
@@ -115,10 +115,7 @@ async fn empty_store() -> Result<(), Box<dyn std::error::Error>> {
 
     let err = raw_response.unwrap_err();
     assert_eq!(err.code(), Code::NotFound);
-    assert_eq!(
-            err.message(),
-            "Key Digest(DigestInfo(\"0123456789abcdef000000000000000000000000000000000123456789abcdef-0\")) not found"
-        );
+    assert!(err.message().is_empty());
     Ok(())
 }
 
@@ -160,10 +157,7 @@ async fn single_item_wrong_digest_size() -> Result<(), Box<dyn std::error::Error
 
     let err = raw_response.unwrap_err();
     assert_eq!(err.code(), Code::NotFound);
-    assert_eq!(
-            err.message(),
-            "Key Digest(DigestInfo(\"0123456789abcdef000000000000000000000000000000000123456789abcdef-146\")) not found"
-        );
+    assert!(err.message().is_empty());
     Ok(())
 }
 
diff --git a/nativelink-service/tests/bep_server_test.rs b/nativelink-service/tests/bep_server_test.rs
index 2537f5ac6..6734082ac 100644
--- a/nativelink-service/tests/bep_server_test.rs
+++ b/nativelink-service/tests/bep_server_test.rs
@@ -17,10 +17,11 @@ use std::sync::Arc;
 
 use futures::StreamExt;
 use hyper::body::Frame;
-use nativelink_config::cas_server::BepConfig;
+use nativelink_config::cas_server::{BepConfig, IdentityHeaderSpec};
 use nativelink_config::stores::{MemorySpec, StoreSpec};
 use nativelink_error::{Error, ResultExt};
 use nativelink_macro::nativelink_test;
+use nativelink_proto::com::github::trace_machina::nativelink::events::{bep_event, BepEvent};
 use nativelink_proto::google::devtools::build::v1::build_event::console_output::Output;
 use nativelink_proto::google::devtools::build::v1::build_event::{
     BuildEnqueued, BuildFinished, ConsoleOutput, Event, InvocationAttemptFinished,
@@ -68,6 +69,7 @@ fn make_bep_server(store_manager: &StoreManager) -> Result<BepServer, Error> {
     BepServer::new(
         &BepConfig {
             store: BEP_STORE_NAME.to_string(),
+            experimental_identity_header: IdentityHeaderSpec::default(),
         },
         store_manager,
     )
@@ -116,7 +118,7 @@ async fn publish_lifecycle_event_test() -> Result<(), Box<dyn std::error::Error>
     let sequence_number = request.clone().build_event.unwrap().sequence_number;
 
     let store_key = StoreKey::Str(Cow::Owned(format!(
-        "LifecycleEvent:{}:{}:{}",
+        "BepEvent:{}:{}:{}",
         stream_id.clone().build_id,
         stream_id.clone().invocation_id,
         sequence_number
@@ -139,10 +141,17 @@ async fn publish_lifecycle_event_test() -> Result<(), Box<dyn std::error::Error>
         .await
         .err_tip(|| "While receiving bytes from reader")?;
 
-    let decoded_request = PublishLifecycleEventRequest::decode(bytes)
-        .err_tip(|| "While decoding request from bytes")?;
+    let decoded_request =
+        BepEvent::decode(bytes).err_tip(|| "While decoding request from bytes")?;
 
-    assert_eq!(request, decoded_request);
+    assert_eq!(
+        BepEvent {
+            version: 0,
+            identity: String::new(),
+            event: Some(bep_event::Event::LifecycleEvent(request.clone())),
+        },
+        decoded_request,
+    );
 
     Ok(())
 }
@@ -279,7 +288,7 @@ async fn publish_build_tool_event_stream_test() -> Result<(), Box<dyn std::error
                 .iter()
                 .map(|request| {
                     StoreKey::Str(Cow::Owned(format!(
-                        "BuildToolEventStream:{}:{}:{}",
+                        "BepEvent:{}:{}:{}",
                         stream_id.build_id,
                         stream_id.invocation_id,
                         request
@@ -331,9 +340,16 @@ async fn publish_build_tool_event_stream_test() -> Result<(), Box<dyn std::error
                 .await?;
             let encoded_request = reader.recv().await?;
 
-            let decoded_request = PublishBuildToolEventStreamRequest::decode(encoded_request)?;
+            let decoded_request = BepEvent::decode(encoded_request)?;
 
-            assert_eq!(*request, decoded_request);
+            assert_eq!(
+                BepEvent {
+                    version: 0,
+                    identity: String::new(),
+                    event: Some(bep_event::Event::BuildToolEvent(request.clone())),
+                },
+                decoded_request
+            );
         }
 
         Ok(())
diff --git a/nativelink-store/Cargo.toml b/nativelink-store/Cargo.toml
index fa3094417..46edb3917 100644
--- a/nativelink-store/Cargo.toml
+++ b/nativelink-store/Cargo.toml
@@ -42,7 +42,7 @@ patricia_tree = { version = "0.8.0", default-features = false }
 futures = { version = "0.3.30", default-features = false }
 hex = { version = "0.4.3", default-features = false }
 http-body = "1.0.1"
-hyper = { version = "0.14.30" }
+hyper = { version = "0.14.31" }
 hyper-rustls = { version = "0.24.2", default-features = false, features = [
   "webpki-roots",
 ] }
diff --git a/nativelink-util/BUILD.bazel b/nativelink-util/BUILD.bazel
index 9b31bb07f..dd409deb8 100644
--- a/nativelink-util/BUILD.bazel
+++ b/nativelink-util/BUILD.bazel
@@ -26,6 +26,9 @@ rust_library(
         "src/metrics_utils.rs",
         "src/operation_state_manager.rs",
         "src/origin_context.rs",
+        "src/origin_event.rs",
+        "src/origin_event_middleware.rs",
+        "src/origin_event_publisher.rs",
         "src/platform_properties.rs",
         "src/proto_stream_utils.rs",
         "src/resource_info.rs",
@@ -46,6 +49,7 @@ rust_library(
         "//nativelink-metric",
         "//nativelink-proto",
         "@crates//:async-lock",
+        "@crates//:base64",
         "@crates//:bitflags",
         "@crates//:blake3",
         "@crates//:bytes",
@@ -67,6 +71,7 @@ rust_library(
         "@crates//:tokio",
         "@crates//:tokio-util",
         "@crates//:tonic",
+        "@crates//:tower",
         "@crates//:tracing",
         "@crates//:tracing-subscriber",
         "@crates//:uuid",
diff --git a/nativelink-util/Cargo.toml b/nativelink-util/Cargo.toml
index fb635af60..1882c19c7 100644
--- a/nativelink-util/Cargo.toml
+++ b/nativelink-util/Cargo.toml
@@ -13,6 +13,7 @@ nativelink-proto = { path = "../nativelink-proto" }
 nativelink-metric = { path = "../nativelink-metric" }
 async-lock = { version = "3.4.0", features = ["std"], default-features = false }
 async-trait = "0.1.83"
+base64 = { version = "0.22.1", default-features = false, features = ["std"] }
 bitflags = "2.6.0"
 blake3 = { version = "1.5.4", features = ["mmap"] }
 bytes = { version = "1.7.2", default-features = false }
@@ -38,9 +39,10 @@ tokio = { version = "1.40.0", features = ["fs", "rt-multi-thread", "signal", "io
 tokio-stream = { version = "0.1.16", features = ["fs"], default-features = false }
 tokio-util = { version = "0.7.12" }
 tonic = { version = "0.12.3", features = ["transport", "tls"], default-features = false }
+tower = { version = "0.5.1", default-features = false }
 tracing = { version = "0.1.40", default-features = false }
 tracing-subscriber = { version = "0.3.18", features = ["ansi", "env-filter", "json"], default-features = false }
-uuid = { version = "1.10.0", default-features = false, features = ["v4", "serde"] }
+uuid = { version = "1.10.0", default-features = false, features = ["v6", "v4", "serde"] }
 mock_instant = "0.5.1"
 
 [dev-dependencies]
diff --git a/nativelink-util/src/lib.rs b/nativelink-util/src/lib.rs
index 2df2bec21..562422ed8 100644
--- a/nativelink-util/src/lib.rs
+++ b/nativelink-util/src/lib.rs
@@ -28,6 +28,9 @@ pub mod known_platform_property_provider;
 pub mod metrics_utils;
 pub mod operation_state_manager;
 pub mod origin_context;
+pub mod origin_event;
+pub mod origin_event_middleware;
+pub mod origin_event_publisher;
 pub mod platform_properties;
 pub mod proto_stream_utils;
 pub mod resource_info;
diff --git a/nativelink-util/src/origin_event.rs b/nativelink-util/src/origin_event.rs
new file mode 100644
index 000000000..7f514640b
--- /dev/null
+++ b/nativelink-util/src/origin_event.rs
@@ -0,0 +1,597 @@
+// Copyright 2024 The NativeLink Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use std::marker::PhantomData;
+use std::pin::Pin;
+use std::sync::{Arc, OnceLock};
+
+use futures::future::ready;
+use futures::{Future, FutureExt, Stream, StreamExt};
+use nativelink_proto::build::bazel::remote::execution::v2::{
+    ActionResult, BatchReadBlobsRequest, BatchReadBlobsResponse, BatchUpdateBlobsRequest,
+    BatchUpdateBlobsResponse, ExecuteRequest, FindMissingBlobsRequest, FindMissingBlobsResponse,
+    GetActionResultRequest, GetCapabilitiesRequest, GetTreeRequest, GetTreeResponse,
+    RequestMetadata, ServerCapabilities, UpdateActionResultRequest, WaitExecutionRequest,
+};
+use nativelink_proto::com::github::trace_machina::nativelink::events::origin_event::Event;
+use nativelink_proto::com::github::trace_machina::nativelink::events::{
+    batch_read_blobs_response_override, batch_update_blobs_request_override,
+    execute_stream_response, get_tree_stream_response, read_stream_response, write_stream_request,
+    BatchReadBlobsResponseOverride, BatchUpdateBlobsRequestOverride, ExecuteStreamResponse,
+    GetTreeStreamResponse, OriginEvent, ReadStreamResponse, WriteRequestOverride,
+    WriteStreamRequest,
+};
+use nativelink_proto::google::bytestream::{
+    QueryWriteStatusRequest, QueryWriteStatusResponse, ReadRequest, ReadResponse, WriteRequest,
+    WriteResponse,
+};
+use nativelink_proto::google::longrunning::Operation;
+use nativelink_proto::google::rpc::Status;
+use rand::RngCore;
+use tokio::sync::mpsc;
+use tonic::{Response, Status as TonicStatus, Streaming};
+use uuid::Uuid;
+
+use crate::make_symbol;
+use crate::origin_context::ActiveOriginContext;
+
+const ORIGIN_EVENT_VERSION: u32 = 0;
+
+static NODE_ID: OnceLock<[u8; 6]> = OnceLock::new();
+
+/// Returns a unique node ID for this process.
+pub fn get_node_id() -> &'static [u8; 6] {
+    NODE_ID.get_or_init(|| {
+        let mut rng = rand::thread_rng();
+        let mut out = [0; 6];
+        rng.fill_bytes(&mut out);
+        out
+    })
+}
+
+pub struct OriginEventCollector {
+    sender: mpsc::Sender<OriginEvent>,
+    identity: String,
+    bazel_metadata: Option<RequestMetadata>,
+}
+
+impl OriginEventCollector {
+    pub fn new(
+        sender: mpsc::Sender<OriginEvent>,
+        identity: String,
+        bazel_metadata: Option<RequestMetadata>,
+    ) -> Self {
+        Self {
+            sender,
+            identity,
+            bazel_metadata,
+        }
+    }
+
+    async fn publish_origin_event(&self, event: Event, parent_event_id: Option<Uuid>) -> Uuid {
+        let event_id = Uuid::now_v6(get_node_id());
+        let parent_event_id =
+            parent_event_id.map_or_else(String::new, |id| id.as_hyphenated().to_string());
+        // Failing to send this event means that the receiver has been dropped.
+        let _ = self
+            .sender
+            .send(OriginEvent {
+                version: ORIGIN_EVENT_VERSION,
+                event_id: event_id.as_hyphenated().to_string(),
+                parent_event_id,
+                bazel_request_metadata: self.bazel_metadata.clone(),
+                identity: self.identity.clone(),
+                event: Some(event),
+            })
+            .await;
+        event_id
+    }
+}
+
+make_symbol!(ORIGIN_EVENT_COLLECTOR, OriginEventCollector);
+
+pub struct OriginEventContext<T> {
+    inner: Option<OriginEventContextImpl>,
+    _phantom: PhantomData<T>,
+}
+
+impl<T> Clone for OriginEventContext<T> {
+    fn clone(&self) -> Self {
+        Self {
+            inner: self.inner.clone(),
+            _phantom: PhantomData,
+        }
+    }
+}
+
+impl OriginEventContext<()> {
+    pub fn new<'a, T, U>(
+        source_cb: impl Fn() -> &'a T,
+    ) -> impl Future<Output = OriginEventContext<T>> + 'static
+    where
+        T: OriginEventSource<U> + 'static,
+    {
+        let Ok(Some(origin_event_collector)) =
+            ActiveOriginContext::get_value(&ORIGIN_EVENT_COLLECTOR)
+        else {
+            return ready(OriginEventContext {
+                inner: None,
+                _phantom: PhantomData,
+            })
+            .left_future();
+        };
+        let event = source_cb().as_event();
+        async move {
+            let parent_event_id = origin_event_collector
+                .publish_origin_event(event, None)
+                .await;
+            OriginEventContext {
+                inner: Some(OriginEventContextImpl {
+                    origin_event_collector,
+                    parent_event_id,
+                }),
+                _phantom: PhantomData,
+            }
+        }
+        .right_future()
+    }
+}
+impl<U> OriginEventContext<U> {
+    pub fn emit<'a, T, F>(
+        &self,
+        event_cb: F,
+    ) -> impl Future<Output = ()> + Send + use<'_, 'a, T, F, U>
+    where
+        T: OriginEventSource<U> + 'a,
+        F: Fn() -> &'a T,
+    {
+        let Some(inner) = &self.inner else {
+            return ready(()).left_future();
+        };
+        let v = (event_cb)();
+        v.publish(inner).right_future()
+    }
+
+    pub fn wrap_stream<'a, O, S>(&self, stream: S) -> Pin<Box<dyn Stream<Item = O> + Send + 'a>>
+    where
+        U: Send + 'a,
+        O: OriginEventSource<U> + Send + 'a,
+        S: Stream<Item = O> + Send + 'a,
+    {
+        if self.inner.is_none() {
+            return Box::pin(stream);
+        }
+        let ctx = self.clone();
+        Box::pin(stream.then(move |item| {
+            let ctx = ctx.clone();
+            async move {
+                ctx.emit(|| &item).await;
+                item
+            }
+        }))
+    }
+}
+
+#[derive(Clone)]
+pub struct OriginEventContextImpl {
+    origin_event_collector: Arc<OriginEventCollector>,
+    parent_event_id: Uuid,
+}
+
+pub trait OriginEventSource<Source>: Sized {
+    fn as_event(&self) -> Event;
+
+    fn publish<'a>(&self, ctx: &'a OriginEventContextImpl) -> impl Future<Output = ()> + Send + 'a {
+        let event = self.as_event();
+        ctx.origin_event_collector
+            .publish_origin_event(event, Some(ctx.parent_event_id))
+            // We don't need the Uuid here.
+            .map(|_| ())
+    }
+}
+
+impl<'a, T, U> OriginEventSource<U> for &'a Response<T>
+where
+    T: OriginEventSource<U> + 'a,
+{
+    fn as_event(&self) -> Event {
+        self.get_ref().as_event()
+    }
+}
+
+impl<T, U> OriginEventSource<U> for Result<Response<T>, TonicStatus>
+where
+    T: OriginEventSource<U>,
+    TonicStatus: OriginEventSource<U>,
+{
+    fn as_event(&self) -> Event {
+        match self {
+            Ok(v) => v.as_event(),
+            Err(v) => v.as_event(),
+        }
+    }
+}
+
+// -- GetCapabilities --
+
+impl OriginEventSource<()> for GetCapabilitiesRequest {
+    fn as_event(&self) -> Event {
+        Event::GetCapabilitiesRequest(self.clone())
+    }
+}
+impl OriginEventSource<GetCapabilitiesRequest> for ServerCapabilities {
+    fn as_event(&self) -> Event {
+        Event::GetCapabilitiesResponse(self.clone())
+    }
+}
+
+// -- GetActionResult --
+
+impl OriginEventSource<()> for GetActionResultRequest {
+    fn as_event(&self) -> Event {
+        Event::GetActionResultRequest(self.clone())
+    }
+}
+impl OriginEventSource<GetActionResultRequest> for ActionResult {
+    fn as_event(&self) -> Event {
+        Event::GetActionResultResponse(self.clone())
+    }
+}
+impl OriginEventSource<GetActionResultRequest> for TonicStatus {
+    fn as_event(&self) -> Event {
+        Event::GetActionResultError(Status {
+            code: self.code().into(),
+            message: self.message().into(),
+            details: Vec::new(),
+        })
+    }
+}
+
+// -- UpdateActionResult --
+
+impl OriginEventSource<()> for UpdateActionResultRequest {
+    fn as_event(&self) -> Event {
+        Event::UpdateActionResultRequest(self.clone())
+    }
+}
+impl OriginEventSource<UpdateActionResultRequest> for ActionResult {
+    fn as_event(&self) -> Event {
+        Event::UpdateActionResultResponse(self.clone())
+    }
+}
+impl OriginEventSource<UpdateActionResultRequest> for TonicStatus {
+    fn as_event(&self) -> Event {
+        Event::UpdateActionResultError(Status {
+            code: self.code().into(),
+            message: self.message().into(),
+            details: Vec::new(),
+        })
+    }
+}
+
+// -- FindMissingBlobs --
+
+impl OriginEventSource<()> for FindMissingBlobsRequest {
+    fn as_event(&self) -> Event {
+        Event::FindMissingBlobsRequest(self.clone())
+    }
+}
+impl OriginEventSource<FindMissingBlobsRequest> for FindMissingBlobsResponse {
+    fn as_event(&self) -> Event {
+        Event::FindMissingBlobsResponse(self.clone())
+    }
+}
+impl OriginEventSource<FindMissingBlobsRequest> for TonicStatus {
+    fn as_event(&self) -> Event {
+        Event::FindMissingBlobsError(Status {
+            code: self.code().into(),
+            message: self.message().into(),
+            details: Vec::new(),
+        })
+    }
+}
+
+// -- BatchReadBlobs --
+
+impl OriginEventSource<()> for BatchReadBlobsRequest {
+    fn as_event(&self) -> Event {
+        Event::BatchReadBlobsRequest(self.clone())
+    }
+}
+impl OriginEventSource<BatchReadBlobsRequest> for BatchReadBlobsResponse {
+    fn as_event(&self) -> Event {
+        Event::BatchReadBlobsResponse(BatchReadBlobsResponseOverride {
+            responses: self
+                .responses
+                .iter()
+                .map(|v| batch_read_blobs_response_override::Response {
+                    digest: v.digest.clone(),
+                    compressor: v.compressor,
+                    status: v.status.clone(),
+                    data_len: u64::try_from(v.data.len()).unwrap_or_default(),
+                })
+                .collect(),
+        })
+    }
+}
+impl OriginEventSource<BatchReadBlobsRequest> for TonicStatus {
+    fn as_event(&self) -> Event {
+        Event::BatchReadBlobsError(Status {
+            code: self.code().into(),
+            message: self.message().into(),
+            details: Vec::new(),
+        })
+    }
+}
+
+// -- BatchUpdateBlobs --
+
+impl OriginEventSource<()> for BatchUpdateBlobsRequest {
+    fn as_event(&self) -> Event {
+        Event::BatchUpdateBlobsRequest(BatchUpdateBlobsRequestOverride {
+            instance_name: self.instance_name.clone(),
+            requests: self
+                .requests
+                .iter()
+                .map(|v| batch_update_blobs_request_override::Request {
+                    digest: v.digest.clone(),
+                    compressor: v.compressor,
+                    data_len: u64::try_from(v.data.len()).unwrap_or_default(),
+                })
+                .collect(),
+            digest_function: self.digest_function,
+        })
+    }
+}
+impl OriginEventSource<BatchUpdateBlobsRequest> for BatchUpdateBlobsResponse {
+    fn as_event(&self) -> Event {
+        Event::BatchUpdateBlobsResponse(self.clone())
+    }
+}
+impl OriginEventSource<BatchUpdateBlobsRequest> for TonicStatus {
+    fn as_event(&self) -> Event {
+        Event::BatchUpdateBlobsError(Status {
+            code: self.code().into(),
+            message: self.message().into(),
+            details: Vec::new(),
+        })
+    }
+}
+
+// -- GetTree --
+
+impl OriginEventSource<()> for GetTreeRequest {
+    fn as_event(&self) -> Event {
+        Event::GetTreeRequest(self.clone())
+    }
+}
+impl OriginEventSource<GetTreeRequest> for TonicStatus {
+    fn as_event(&self) -> Event {
+        Event::GetTreeError(Status {
+            code: self.code().into(),
+            message: self.message().into(),
+            details: Vec::new(),
+        })
+    }
+}
+impl OriginEventSource<GetTreeRequest>
+    for Pin<Box<dyn Stream<Item = Result<GetTreeResponse, TonicStatus>> + Send + '_>>
+{
+    fn as_event(&self) -> Event {
+        Event::ReadResponse(())
+    }
+}
+impl OriginEventSource<GetTreeRequest> for Result<GetTreeResponse, TonicStatus> {
+    fn as_event(&self) -> Event {
+        Event::GetTreeStreamResponse(GetTreeStreamResponse {
+            response: Some(match self {
+                Ok(v) => get_tree_stream_response::Response::Success(v.clone()),
+                Err(v) => get_tree_stream_response::Response::Error(Status {
+                    code: v.code().into(),
+                    message: v.message().into(),
+                    details: Vec::new(),
+                }),
+            }),
+        })
+    }
+}
+
+// -- ReadRequest --
+
+impl OriginEventSource<()> for ReadRequest {
+    fn as_event(&self) -> Event {
+        Event::ReadRequest(self.clone())
+    }
+}
+impl OriginEventSource<ReadRequest> for TonicStatus {
+    fn as_event(&self) -> Event {
+        Event::ReadError(Status {
+            code: self.code().into(),
+            message: self.message().into(),
+            details: Vec::new(),
+        })
+    }
+}
+impl OriginEventSource<ReadRequest>
+    for Pin<Box<dyn Stream<Item = Result<ReadResponse, TonicStatus>> + Send + '_>>
+{
+    fn as_event(&self) -> Event {
+        Event::ReadResponse(())
+    }
+}
+impl OriginEventSource<ReadRequest> for Result<ReadResponse, TonicStatus> {
+    fn as_event(&self) -> Event {
+        Event::ReadStreamResponse(ReadStreamResponse {
+            response: Some(match self {
+                Ok(v) => read_stream_response::Response::Success(
+                    u64::try_from(v.data.len()).unwrap_or_default(),
+                ),
+                Err(v) => read_stream_response::Response::Error(Status {
+                    code: v.code().into(),
+                    message: v.message().into(),
+                    details: Vec::new(),
+                }),
+            }),
+        })
+    }
+}
+
+// -- WriteRequest --
+
+impl OriginEventSource<()> for Streaming<WriteRequest> {
+    fn as_event(&self) -> Event {
+        Event::WriteRequest(())
+    }
+}
+impl OriginEventSource<Streaming<WriteRequest>> for WriteResponse {
+    fn as_event(&self) -> Event {
+        Event::WriteResponse(*self)
+    }
+}
+impl OriginEventSource<Streaming<WriteRequest>> for TonicStatus {
+    fn as_event(&self) -> Event {
+        Event::WriteError(Status {
+            code: self.code().into(),
+            message: self.message().into(),
+            details: Vec::new(),
+        })
+    }
+}
+impl OriginEventSource<Streaming<WriteRequest>> for Result<WriteRequest, TonicStatus> {
+    fn as_event(&self) -> Event {
+        Event::WriteStreamRequest(WriteStreamRequest {
+            response: Some(match self {
+                Ok(v) => write_stream_request::Response::Success(WriteRequestOverride {
+                    resource_name: v.resource_name.clone(),
+                    write_offset: v.write_offset,
+                    finish_write: v.finish_write,
+                    data_len: u64::try_from(v.data.len()).unwrap_or_default(),
+                }),
+                Err(v) => write_stream_request::Response::Error(Status {
+                    code: v.code().into(),
+                    message: v.message().into(),
+                    details: Vec::new(),
+                }),
+            }),
+        })
+    }
+}
+
+// -- QueryWriteStatus --
+
+impl OriginEventSource<()> for QueryWriteStatusRequest {
+    fn as_event(&self) -> Event {
+        Event::QueryWriteStatusRequest(self.clone())
+    }
+}
+impl OriginEventSource<QueryWriteStatusRequest> for QueryWriteStatusResponse {
+    fn as_event(&self) -> Event {
+        Event::QueryWriteStatusResponse(*self)
+    }
+}
+impl OriginEventSource<QueryWriteStatusRequest> for TonicStatus {
+    fn as_event(&self) -> Event {
+        Event::QueryWriteStatusError(Status {
+            code: self.code().into(),
+            message: self.message().into(),
+            details: Vec::new(),
+        })
+    }
+}
+
+// -- ExecuteRequest --
+
+impl OriginEventSource<()> for ExecuteRequest {
+    fn as_event(&self) -> Event {
+        Event::ExecuteRequest(self.clone())
+    }
+}
+impl OriginEventSource<ExecuteRequest>
+    for Pin<Box<dyn Stream<Item = Result<Operation, TonicStatus>> + Send + '_>>
+{
+    fn as_event(&self) -> Event {
+        Event::ExecuteResponse(())
+    }
+}
+impl OriginEventSource<ExecuteRequest> for QueryWriteStatusResponse {
+    fn as_event(&self) -> Event {
+        Event::QueryWriteStatusResponse(*self)
+    }
+}
+impl OriginEventSource<ExecuteRequest> for TonicStatus {
+    fn as_event(&self) -> Event {
+        Event::QueryWriteStatusError(Status {
+            code: self.code().into(),
+            message: self.message().into(),
+            details: Vec::new(),
+        })
+    }
+}
+impl OriginEventSource<ExecuteRequest> for Result<Operation, TonicStatus> {
+    fn as_event(&self) -> Event {
+        Event::ExecuteStreamResponse(ExecuteStreamResponse {
+            response: Some(match self {
+                Ok(v) => execute_stream_response::Response::Success(v.clone()),
+                Err(v) => execute_stream_response::Response::Error(Status {
+                    code: v.code().into(),
+                    message: v.message().into(),
+                    details: Vec::new(),
+                }),
+            }),
+        })
+    }
+}
+
+// -- WaitExecution --
+
+impl OriginEventSource<()> for WaitExecutionRequest {
+    fn as_event(&self) -> Event {
+        Event::WaitExecutionRequest(self.clone())
+    }
+}
+impl OriginEventSource<WaitExecutionRequest>
+    for Pin<Box<dyn Stream<Item = Result<Operation, TonicStatus>> + Send + '_>>
+{
+    fn as_event(&self) -> Event {
+        Event::ExecuteResponse(())
+    }
+}
+impl OriginEventSource<WaitExecutionRequest> for QueryWriteStatusResponse {
+    fn as_event(&self) -> Event {
+        Event::QueryWriteStatusResponse(*self)
+    }
+}
+impl OriginEventSource<WaitExecutionRequest> for TonicStatus {
+    fn as_event(&self) -> Event {
+        Event::QueryWriteStatusError(Status {
+            code: self.code().into(),
+            message: self.message().into(),
+            details: Vec::new(),
+        })
+    }
+}
+impl OriginEventSource<WaitExecutionRequest> for Result<Operation, TonicStatus> {
+    fn as_event(&self) -> Event {
+        Event::WaitExecuteStreamResponse(ExecuteStreamResponse {
+            response: Some(match self {
+                Ok(v) => execute_stream_response::Response::Success(v.clone()),
+                Err(v) => execute_stream_response::Response::Error(Status {
+                    code: v.code().into(),
+                    message: v.message().into(),
+                    details: Vec::new(),
+                }),
+            }),
+        })
+    }
+}
diff --git a/nativelink-util/src/origin_event_middleware.rs b/nativelink-util/src/origin_event_middleware.rs
new file mode 100644
index 000000000..e82a2d9e4
--- /dev/null
+++ b/nativelink-util/src/origin_event_middleware.rs
@@ -0,0 +1,152 @@
+// Copyright 2024 The NativeLink Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use std::sync::Arc;
+
+use base64::prelude::BASE64_STANDARD_NO_PAD;
+use base64::Engine;
+use futures::future::BoxFuture;
+use futures::task::{Context, Poll};
+use hyper::http::{self, StatusCode};
+use nativelink_config::cas_server::IdentityHeaderSpec;
+use nativelink_proto::build::bazel::remote::execution::v2::RequestMetadata;
+use nativelink_proto::com::github::trace_machina::nativelink::events::OriginEvent;
+use prost::Message;
+use tokio::sync::mpsc;
+use tower::layer::Layer;
+use tower::Service;
+use tracing::trace_span;
+
+use crate::origin_context::OriginContext;
+use crate::origin_event::{OriginEventCollector, ORIGIN_EVENT_COLLECTOR};
+
+/// Default identity header name.
+/// Note: If this is changed, the default value in the [`IdentityHeaderSpec`]
+// TODO(allada) This has a mirror in bep_server.rs.
+// We should consolidate these.
+const DEFAULT_IDENTITY_HEADER: &str = "x-identity";
+
+#[derive(Default, Clone)]
+pub struct OriginRequestMetadata {
+    pub identity: String,
+    pub bazel_metadata: Option<RequestMetadata>,
+}
+
+#[derive(Clone)]
+pub struct OriginEventMiddlewareLayer {
+    origin_event_tx: mpsc::Sender<OriginEvent>,
+    idenity_header_config: Arc<IdentityHeaderSpec>,
+}
+
+impl OriginEventMiddlewareLayer {
+    pub fn new(
+        origin_event_tx: mpsc::Sender<OriginEvent>,
+        idenity_header_config: IdentityHeaderSpec,
+    ) -> Self {
+        Self {
+            origin_event_tx,
+            idenity_header_config: Arc::new(idenity_header_config),
+        }
+    }
+}
+
+impl<S> Layer<S> for OriginEventMiddlewareLayer {
+    type Service = OriginEventMiddleware<S>;
+
+    fn layer(&self, service: S) -> Self::Service {
+        OriginEventMiddleware {
+            inner: service,
+            origin_event_tx: self.origin_event_tx.clone(),
+            idenity_header_config: self.idenity_header_config.clone(),
+        }
+    }
+}
+
+#[derive(Clone)]
+pub struct OriginEventMiddleware<S> {
+    inner: S,
+    origin_event_tx: mpsc::Sender<OriginEvent>,
+    idenity_header_config: Arc<IdentityHeaderSpec>,
+}
+
+impl<S, ReqBody, ResBody> Service<http::Request<ReqBody>> for OriginEventMiddleware<S>
+where
+    S: Service<http::Request<ReqBody>, Response = http::Response<ResBody>> + Clone + Send + 'static,
+    S::Future: Send + 'static,
+    ReqBody: std::fmt::Debug + Send + 'static,
+    ResBody: From<String> + Send + 'static,
+{
+    type Response = S::Response;
+    type Error = S::Error;
+    type Future = BoxFuture<'static, Result<Self::Response, Self::Error>>;
+
+    fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
+        self.inner.poll_ready(cx)
+    }
+
+    fn call(&mut self, req: http::Request<ReqBody>) -> Self::Future {
+        // We must take the current `inner` and not the clone.
+        // See: https://docs.rs/tower/latest/tower/trait.Service.html#be-careful-when-cloning-inner-services
+        let clone = self.inner.clone();
+        let mut inner = std::mem::replace(&mut self.inner, clone);
+
+        let (identity, bazel_metadata) = {
+            let identity_header = self
+                .idenity_header_config
+                .header_name
+                .as_deref()
+                .unwrap_or(DEFAULT_IDENTITY_HEADER);
+            let identity = if !identity_header.is_empty() {
+                req.headers()
+                    .get(identity_header)
+                    .and_then(|header| header.to_str().ok().map(str::to_string))
+                    .unwrap_or_default()
+            } else {
+                String::new()
+            };
+
+            if identity.is_empty() && self.idenity_header_config.required {
+                return Box::pin(async move {
+                    Ok(http::Response::builder()
+                        .status(StatusCode::UNAUTHORIZED)
+                        .body("'identity_header' header is required".to_string().into())
+                        .unwrap())
+                });
+            }
+
+            let bazel_metadata = req
+                .headers()
+                .get("build.bazel.remote.execution.v2.requestmetadata-bin")
+                .and_then(|header| BASE64_STANDARD_NO_PAD.decode(header.as_bytes()).ok())
+                .and_then(|data| RequestMetadata::decode(data.as_slice()).ok());
+            (identity, bazel_metadata)
+        };
+
+        let mut context = OriginContext::new();
+        context.set_value(
+            &ORIGIN_EVENT_COLLECTOR,
+            Arc::new(OriginEventCollector::new(
+                self.origin_event_tx.clone(),
+                identity,
+                bazel_metadata,
+            )),
+        );
+
+        Box::pin(async move {
+            Arc::new(context)
+                .wrap_async(trace_span!("OriginEventMiddleware"), inner.call(req))
+                .await
+        })
+    }
+}
diff --git a/nativelink-util/src/origin_event_publisher.rs b/nativelink-util/src/origin_event_publisher.rs
new file mode 100644
index 000000000..ebdfde521
--- /dev/null
+++ b/nativelink-util/src/origin_event_publisher.rs
@@ -0,0 +1,115 @@
+// Copyright 2024 The NativeLink Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use bytes::BytesMut;
+use futures::{future, FutureExt};
+use nativelink_proto::com::github::trace_machina::nativelink::events::{OriginEvent, OriginEvents};
+use prost::Message;
+use tokio::sync::{broadcast, mpsc};
+use tracing::error;
+use uuid::Uuid;
+
+use crate::origin_event::get_node_id;
+use crate::shutdown_guard::{Priority, ShutdownGuard};
+use crate::store_trait::{Store, StoreLike};
+
+/// Publishes origin events to the store.
+pub struct OriginEventPublisher {
+    store: Store,
+    rx: mpsc::Receiver<OriginEvent>,
+    shutdown_tx: broadcast::Sender<ShutdownGuard>,
+}
+
+impl OriginEventPublisher {
+    pub fn new(
+        store: Store,
+        rx: mpsc::Receiver<OriginEvent>,
+        shutdown_tx: broadcast::Sender<ShutdownGuard>,
+    ) -> Self {
+        Self {
+            store,
+            rx,
+            shutdown_tx,
+        }
+    }
+
+    /// Runs the origin event publisher.
+    pub async fn run(mut self) {
+        const MAX_EVENTS_PER_BATCH: usize = 1024;
+        let mut batch: Vec<OriginEvent> = Vec::with_capacity(MAX_EVENTS_PER_BATCH);
+        let mut shutdown_rx = self.shutdown_tx.subscribe();
+        let shutdown_fut = shutdown_rx.recv().fuse();
+        tokio::pin!(shutdown_fut);
+        let shutdown_guard = future::pending().left_future();
+        tokio::pin!(shutdown_guard);
+        loop {
+            tokio::select! {
+                biased;
+                _ = self.rx.recv_many(&mut batch, MAX_EVENTS_PER_BATCH) => {
+                    self.handle_batch(&mut batch).await;
+                }
+                shutdown_guard_res = &mut shutdown_fut => {
+                    tracing::info!("Received shutdown down in origin event publisher");
+                    let Ok(mut local_shutdown_guard) = shutdown_guard_res else {
+                        tracing::error!("Received shutdown down in origin event publisher but failed to get shutdown guard");
+                        return;
+                    };
+                    shutdown_guard.set(async move {
+                        local_shutdown_guard.wait_for(Priority::P0).await;
+                    }
+                    .right_future());
+                }
+                () = &mut shutdown_guard => {
+                    // All other services with less priority have completed.
+                    // We may still need to process any remaining events.
+                    while !self.rx.is_empty() {
+                        self.rx.recv_many(&mut batch, MAX_EVENTS_PER_BATCH).await;
+                        self.handle_batch(&mut batch).await;
+                    }
+                    return;
+                }
+            }
+        }
+    }
+
+    async fn handle_batch(&self, batch: &mut Vec<OriginEvent>) {
+        let uuid = Uuid::now_v6(get_node_id());
+        let events = OriginEvents {
+            // Clippy wants us to use use `mem::take`, but this would
+            // move all capacity as well to the new vector. Since it is
+            // much more likely that we will have a small number of events
+            // in the batch, we prefer to use `drain` and `collect` here,
+            // so we only need to allocate the exact amount of memory needed
+            // and let the batch vector's capacity be reused.
+            #[allow(clippy::drain_collect)]
+            events: batch.drain(..).collect(),
+        };
+        let mut data = BytesMut::new();
+        if let Err(e) = events.encode(&mut data) {
+            error!("Failed to encode origin events: {}", e);
+            return;
+        }
+        let update_result = self
+            .store
+            .as_store_driver_pin()
+            .update_oneshot(
+                format!("OriginEvents:{}", uuid.hyphenated()).into(),
+                data.freeze(),
+            )
+            .await;
+        if let Err(err) = update_result {
+            error!("Failed to upload origin events: {}", err);
+        }
+    }
+}
diff --git a/src/bin/nativelink.rs b/src/bin/nativelink.rs
index 9fae78b84..3f59ab095 100644
--- a/src/bin/nativelink.rs
+++ b/src/bin/nativelink.rs
@@ -21,6 +21,7 @@ use async_lock::Mutex as AsyncMutex;
 use axum::Router;
 use clap::Parser;
 use futures::future::{try_join_all, BoxFuture, Either, OptionFuture, TryFutureExt};
+use futures::FutureExt;
 use hyper::{Response, StatusCode};
 use hyper_util::rt::tokio::TokioIo;
 use hyper_util::server::conn::auto;
@@ -52,7 +53,9 @@ use nativelink_util::digest_hasher::{set_default_digest_hasher_func, DigestHashe
 use nativelink_util::health_utils::HealthRegistryBuilder;
 use nativelink_util::metrics_utils::{set_metrics_enabled_for_this_thread, Counter};
 use nativelink_util::operation_state_manager::ClientStateManager;
-use nativelink_util::origin_context::OriginContext;
+use nativelink_util::origin_context::{ActiveOriginContext, OriginContext};
+use nativelink_util::origin_event_middleware::OriginEventMiddlewareLayer;
+use nativelink_util::origin_event_publisher::OriginEventPublisher;
 use nativelink_util::shutdown_guard::{Priority, ShutdownGuard};
 use nativelink_util::store_trait::{
     set_default_digest_size_health_check, DEFAULT_DIGEST_SIZE_HEALTH_CHECK_CFG,
@@ -70,7 +73,7 @@ use tokio::net::TcpListener;
 use tokio::select;
 #[cfg(target_family = "unix")]
 use tokio::signal::unix::{signal, SignalKind};
-use tokio::sync::broadcast;
+use tokio::sync::{broadcast, mpsc};
 use tokio_rustls::rustls::pki_types::{CertificateDer, CertificateRevocationListDer};
 use tokio_rustls::rustls::server::WebPkiClientVerifier;
 use tokio_rustls::rustls::{RootCertStore, ServerConfig as TlsServerConfig};
@@ -95,6 +98,10 @@ const DEFAULT_HEALTH_STATUS_CHECK_PATH: &str = "/status";
 /// Name of environment variable to disable metrics.
 const METRICS_DISABLE_ENV: &str = "NATIVELINK_DISABLE_METRICS";
 
+// Note: This must be kept in sync with the documentation in
+// `OriginEventsConfig::max_event_queue_size`.
+const DEFAULT_MAX_QUEUE_EVENTS: usize = 65536;
+
 /// Broadcast Channel Capacity
 /// Note: The actual capacity may be greater than the provided capacity.
 const BROADCAST_CAPACITY: usize = 1;
@@ -450,8 +457,40 @@ async fn inner_main(
 
         let health_registry = health_registry_builder.lock().await.build();
 
-        let mut svc = Router::new()
-            .merge(tonic_services.into_service().into_axum_router())
+        let mut svc = Router::new();
+        let maybe_middleware_layer = cfg
+            .experimental_origin_events
+            .as_ref()
+            .map(|origin_events_cfg| {
+                let mut max_queued_events = origin_events_cfg.max_event_queue_size;
+                if max_queued_events == 0 {
+                    max_queued_events = DEFAULT_MAX_QUEUE_EVENTS;
+                }
+                let (tx, rx) = mpsc::channel(max_queued_events);
+                let store_name = origin_events_cfg.publisher.store.as_str();
+                let store = store_manager.get_store(store_name).err_tip(|| {
+                    format!("Could not get store {store_name} for origin event publisher")
+                })?;
+
+                root_futures.push(Box::pin(
+                    OriginEventPublisher::new(store, rx, shutdown_tx.clone())
+                        .run()
+                        .map(Ok),
+                ));
+
+                Ok::<_, Error>((tx, origin_events_cfg))
+            })
+            .transpose()?
+            .map(|(tx, cfg)| OriginEventMiddlewareLayer::new(tx, cfg.identity_header.clone()));
+        if let Some(middleware) = maybe_middleware_layer {
+            svc = svc.merge(
+                tonic_services
+                    .into_service()
+                    .into_axum_router()
+                    .layer(middleware),
+            );
+        }
+        svc = svc
             // This is the default service that executes if no other endpoint matches.
             .fallback((StatusCode::NOT_FOUND, "Not Found"));
 
@@ -481,9 +520,9 @@ async fn inner_main(
             svc = svc.route_service(
                 path,
                 axum::routing::get(move |request: hyper::Request<axum::body::Body>| {
-                    Arc::new(OriginContext::new()).wrap_async(
-                        trace_span!("prometheus_ctx"),
-                        async move {
+                    ActiveOriginContext::get()
+                        .expect("OriginContext should be set here")
+                        .wrap_async(trace_span!("prometheus_ctx"), async move {
                             // We spawn on a thread that can block to give more freedom to our metrics
                             // collection. This allows it to call functions like `tokio::block_in_place`
                             // if it needs to wait on a future.
@@ -591,8 +630,7 @@ async fn inner_main(
                             .await
                             .unwrap_or_else(|e| Ok(error_to_response(e)))
                             .unwrap_or_else(error_to_response)
-                        },
-                    )
+                        })
                 }),
             );
         }