diff --git a/completers/brew_completer/cmd/audit.go b/completers/brew_completer/cmd/audit.go
index 8c6c28695d..82f0cf0e14 100644
--- a/completers/brew_completer/cmd/audit.go
+++ b/completers/brew_completer/cmd/audit.go
@@ -1,7 +1,11 @@
 package cmd
 
 import (
+	"strings"
+
 	"github.com/rsteube/carapace"
+	"github.com/rsteube/carapace-bin/pkg/actions/tools/brew"
+	"github.com/rsteube/carapace-bin/pkg/actions/tools/gh"
 	"github.com/spf13/cobra"
 )
 
@@ -15,31 +19,51 @@ var auditCmd = &cobra.Command{
 func init() {
 	carapace.Gen(auditCmd).Standalone()
 
-	auditCmd.Flags().Bool("arch", false, "Audit the given CPU architecture. (Pass `all` to audit all architectures.)")
-	auditCmd.Flags().Bool("audit-debug", false, "Enable debugging and profiling of audit methods.")
-	auditCmd.Flags().Bool("cask", false, "Treat all named arguments as casks.")
-	auditCmd.Flags().Bool("debug", false, "Display any debugging information.")
-	auditCmd.Flags().Bool("display-filename", false, "Prefix every line of output with the file or formula name being audited, to make output easy to grep.")
-	auditCmd.Flags().Bool("eval-all", false, "Evaluate all available formulae and casks, whether installed or not, to audit them. Implied if `HOMEBREW_EVAL_ALL` is set.")
-	auditCmd.Flags().Bool("except", false, "Specify a comma-separated <method> list to skip running the methods named `audit_`<method>.")
-	auditCmd.Flags().Bool("except-cops", false, "Specify a comma-separated <cops> list to skip checking for violations of the listed RuboCop cops.")
-	auditCmd.Flags().Bool("fix", false, "Fix style violations automatically using RuboCop's auto-correct feature.")
-	auditCmd.Flags().Bool("formula", false, "Treat all named arguments as formulae.")
-	auditCmd.Flags().Bool("git", false, "Run additional, slower style checks that navigate the Git repository.")
-	auditCmd.Flags().Bool("help", false, "Show this message.")
-	auditCmd.Flags().Bool("installed", false, "Only check formulae and casks that are currently installed.")
-	auditCmd.Flags().Bool("new", false, "Run various additional style checks to determine if a new formula or cask is eligible for Homebrew. This should be used when creating new formulae or casks and implies `--strict` and `--online`.")
+	auditCmd.Flags().Bool("arch", false, "Audit the given CPU architecture")
+	auditCmd.Flags().Bool("audit-debug", false, "Enable debugging and profiling of audit methods")
+	auditCmd.Flags().Bool("cask", false, "Treat all named arguments as casks")
+	auditCmd.Flags().Bool("debug", false, "Display any debugging information")
+	auditCmd.Flags().Bool("display-filename", false, "Prefix every line of output with the file or formula name being audited")
+	auditCmd.Flags().Bool("eval-all", false, "Evaluate all available formulae and casks")
+	auditCmd.Flags().String("except", "", "Specify a comma-separated <method> list to skip")
+	auditCmd.Flags().String("except-cops", "", "Specify a comma-separated <cops> list to skip checking")
+	auditCmd.Flags().Bool("fix", false, "Fix style violations automatically using RuboCop's auto-correct feature")
+	auditCmd.Flags().Bool("formula", false, "Treat all named arguments as formulae")
+	auditCmd.Flags().Bool("git", false, "Run additional, slower style checks that navigate the Git repository")
+	auditCmd.Flags().Bool("help", false, "Show this message")
+	auditCmd.Flags().Bool("installed", false, "Only check formulae and casks that are currently installed")
+	auditCmd.Flags().Bool("new", false, "Run various additional style checks")
 	auditCmd.Flags().Bool("no-signing", false, "Audit for signed apps, which are required on ARM")
-	auditCmd.Flags().Bool("online", false, "Run additional, slower style checks that require a network connection.")
-	auditCmd.Flags().Bool("only", false, "Specify a comma-separated <method> list to only run the methods named `audit_`<method>.")
-	auditCmd.Flags().Bool("only-cops", false, "Specify a comma-separated <cops> list to check for violations of only the listed RuboCop cops.")
-	auditCmd.Flags().Bool("os", false, "Audit the given operating system. (Pass `all` to audit all operating systems.)")
-	auditCmd.Flags().Bool("quiet", false, "Make some output more quiet.")
+	auditCmd.Flags().Bool("online", false, "Run additional, slower style checks that require a network connection")
+	auditCmd.Flags().String("only", "", "Specify a comma-separated <method> list to only run")
+	auditCmd.Flags().String("only-cops", "", "Specify a comma-separated <cops> list to check")
+	auditCmd.Flags().String("os", "", "Audit the given operating system")
+	auditCmd.Flags().Bool("quiet", false, "Make some output more quiet")
 	auditCmd.Flags().Bool("signing", false, "Audit for signed apps, which are required on ARM")
-	auditCmd.Flags().Bool("skip-style", false, "Skip running non-RuboCop style checks. Useful if you plan on running `brew style` separately. Enabled by default unless a formula is specified by name.")
-	auditCmd.Flags().Bool("strict", false, "Run additional, stricter style checks.")
-	auditCmd.Flags().Bool("tap", false, "Check the formulae within the given tap, specified as <user>`/`<repo>.")
-	auditCmd.Flags().Bool("token-conflicts", false, "Audit for token conflicts.")
-	auditCmd.Flags().Bool("verbose", false, "Make some output more verbose.")
+	auditCmd.Flags().Bool("skip-style", false, "Skip running non-RuboCop style checks")
+	auditCmd.Flags().Bool("strict", false, "Run additional, stricter style checks")
+	auditCmd.Flags().String("tap", "", "Check the formulae within the given tap, specified as <user>`/`<repo>")
+	auditCmd.Flags().Bool("token-conflicts", false, "Audit for token conflicts")
+	auditCmd.Flags().Bool("verbose", false, "Make some output more verbose")
 	rootCmd.AddCommand(auditCmd)
+
+	// TODO flag completion
+	carapace.Gen(auditCmd).FlagCompletion(carapace.ActionMap{
+		"tap": gh.ActionOwnerRepositories(gh.HostOpts{}),
+	})
+
+	carapace.Gen(auditCmd).PositionalAnyCompletion(
+		carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+			if f := auditCmd.Flag("tap"); f.Changed {
+				if owner, repo, ok := strings.Cut(f.Value.String(), "/"); ok {
+					return gh.ActionContents(gh.ContentOpts{Owner: owner, Name: repo}) // TODO list remote formulae
+				}
+			}
+
+			return carapace.Batch(
+				brew.ActionAllCasks().Unless(func(c carapace.Context) bool { return auditCmd.Flag("formula").Changed }),
+				brew.ActionAllFormulae().Unless(func(c carapace.Context) bool { return auditCmd.Flag("cask").Changed }),
+			).ToA().FilterArgs()
+		}),
+	)
 }