diff --git a/docs/breaking-change-approval.md b/docs/breaking-change-approval.md
index 38e5aebb..db01c8c6 100644
--- a/docs/breaking-change-approval.md
+++ b/docs/breaking-change-approval.md
@@ -536,3 +536,9 @@ python3 src/validate/breaking-change-guard/test-workflow.py
   orchestrated composite exists with its README and is pinned, that the preflight
   runs before the gate, that `outcome` does not declare a permission it cannot
   escalate to, and that a pull request is closed only on a recorded rejection.
+
+<!-- smoke test: exercises the breaking-change approval gate. This PR is not meant to be merged. -->
+
+<!-- concurrency probe: does a push cancel the previous pending approval? -->
+
+<!-- label lifecycle probe -->