diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index cac50b86..0b27866c 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -45,6 +45,8 @@ jobs:
         env:
           TZ: Europe/Berlin
 
+      # Diagnostic guard: covers the coverage run only. If `npm test` (above)
+      # exits 1 with a birpc error, the named pattern appears here — not there.
       - name: Assert no birpc teardown race in coverage run
         shell: bash
         if: always()