diff --git a/docs/design/job_architecture.md b/docs/design/job_architecture.md
index ae41d08abc..9e4901d441 100644
--- a/docs/design/job_architecture.md
+++ b/docs/design/job_architecture.md
@@ -315,10 +315,16 @@ Bundled job status information for one or more jobs, keyed by job ID, with the f
   * `job_id`
   * `jobState` - see [Job output state](#job-output-state) below for the detailed structure
   * `outputWidgetInfo` - the parameters to send to output widgets, generated from the app specifications and job output. This is only available for completed jobs and is set to null otherwise.
+  * `last_checked` - timestamp in ns added at comm sending time
 
-In case of error, the response has instead the keys:
+In case of per-input-job-ID error, the response has instead the keys:
   * `job_id`
   * `error` - brief message explaining the issue
+  * `last_checked` - timestamp in ns added at comm sending time
+
+In case that all valid jobs were filtered out by the `ts` input from the frontend, there will be a job-ID-to-job-state pattern breaking key-value pair keyed by "error" with a state keyed by:
+  * `error` - "No updated jobs"
+  * `last_checked` - timestamp in ns added at comm sending time
 
 Sample response JSON:
 ```js
@@ -330,11 +336,13 @@ Sample response JSON:
       "status": "running",
       "created": 123456789,
     },
-    "outputWidgetInfo": null, // only available for completed jobs
+    "outputWidgetInfo": null, // only available for completed jobs,
+    "last_checked": 1652992287210343298,
   },
   "job_id_2": {
     "job_id": "job_id_2",
-    "error": "Cannot find job with ID job_id_2"
+    "error": "Cannot find job with ID job_id_2",
+    "last_checked": 1652992287210343298,
   },
 }
 ```
@@ -358,7 +366,6 @@ As sent to browser, includes cell info and run info. The structure below indicat
         "created": epoch ms,
         "queued": optional - epoch ms,
         "finished": optional - epoch ms,
-        "updated": epoch ms,
         "terminated_code": optional - int,
         "error": {  // optional
           "code": int,
@@ -371,7 +378,8 @@ As sent to browser, includes cell info and run info. The structure below indicat
         "tag": string (release, beta, dev),
         "error_code": optional - int,
         "errormsg": optional - string,
-    }
+    },
+    "last_checked": int - ns
 }
 ```
 
diff --git a/src/biokbase/narrative/tests/test_jobcomm.py b/src/biokbase/narrative/tests/test_jobcomm.py
index 7b6132c0a5..5c00181935 100644
--- a/src/biokbase/narrative/tests/test_jobcomm.py
+++ b/src/biokbase/narrative/tests/test_jobcomm.py
@@ -752,7 +752,7 @@ def mock_check_job(self_, params):
             job_state = get_test_job(lookup_id)
             trim_ee2_state(job_state, params.get("exclude_fields"))
             if lookup_id in updated_active_ids:
-                job_state["updated"] += 1
+                job_state["created"] += 1
 
             return job_state
 
@@ -766,7 +766,7 @@ def mock_check_jobs(self_, params):
                 trim_ee2_state(job_state, params.get("exclude_fields"))
                 # if job is chosen to be updated, mutate it
                 if job_id in updated_active_ids:
-                    job_state["updated"] += 1
+                    job_state["created"] += 1
             return job_states
 
         rq = make_comm_msg(STATUS, job_ids + not_found_ids, False, {"ts": ts})
@@ -779,7 +779,7 @@ def mock_check_jobs(self_, params):
             for job_id in updated_active_ids
         }
         for job_state in expected.values():
-            job_state["jobState"]["updated"] += 1
+            job_state["jobState"]["created"] += 1
         expected[JOB_NOT_FOUND] = {
             "job_id": JOB_NOT_FOUND,
             "error": JOB_NOT_REG_2_ERR % JOB_NOT_FOUND
@@ -806,7 +806,7 @@ def mock_check_job(self_, params):
 
             job_state = get_test_job(lookup_id)
             trim_ee2_state(job_state, params.get("exclude_fields"))
-            job_state["updated"] += 1
+            job_state["created"] += 1
 
             return job_state
 
@@ -818,7 +818,7 @@ def mock_check_jobs(self_, params):
             job_states = get_test_jobs(lookup_ids)
             for _, job_state in job_states.items():
                 trim_ee2_state(job_state, params.get("exclude_fields"))
-                job_state["updated"] += 1
+                job_state["created"] += 1
             return job_states
 
         rq = make_comm_msg(STATUS, ALL_JOBS + [JOB_NOT_FOUND], False, {"ts": 0})
@@ -832,7 +832,7 @@ def mock_check_jobs(self_, params):
         }
         for job_id, job_state in expected.items():
             if job_id in ACTIVE_JOBS:
-                job_state["jobState"]["updated"] += 1
+                job_state["jobState"]["created"] += 1
         expected[JOB_NOT_FOUND] = {
             "job_id": JOB_NOT_FOUND,
             "error": JOB_NOT_REG_2_ERR % JOB_NOT_FOUND