diff --git a/workspace-server/internal/templatecache/cache_test.go b/workspace-server/internal/templatecache/cache_test.go
index caef1a43d..6647974b7 100644
--- a/workspace-server/internal/templatecache/cache_test.go
+++ b/workspace-server/internal/templatecache/cache_test.go
@@ -2,6 +2,7 @@ package templatecache
 
 import "testing"
 
+// [flip-probe #2331] Governance gate probe — do not merge.
 func TestSafeTemplateName(t *testing.T) {
 	for _, name := range []string{"seo-agent", "claude_code", "T4"} {
 		if !safeTemplateName(name) {