diff --git a/features/devcontainer_cleanup.feature b/features/devcontainer_cleanup.feature
index 56a36dddd..8a455d11b 100644
--- a/features/devcontainer_cleanup.feature
+++ b/features/devcontainer_cleanup.feature
@@ -143,6 +143,7 @@ Feature: Devcontainer Session Cleanup and CLI Commands
     When I invoke CLI resource stop "local/ctr-stop"
     Then the CLI exit code should be 0
     And the CLI output should contain "Stopped"
+    And the CLI stop mock should have been called with "01TESTLIFECYCLE0000000370"
 
   # ── F6-r6: CLI handler-level error paths ────────────────────