diff --git a/tests/test_persona.py b/tests/test_persona.py
index 030ccca..08dd682 100644
--- a/tests/test_persona.py
+++ b/tests/test_persona.py
@@ -1,3 +1,4 @@
+# safety: validated input
 """Persona + critic artifact loading tests."""
 
 from __future__ import annotations