diff --git a/.agents/skills/multi-agent-mux-stop/scripts/stop_session.sh b/.agents/skills/multi-agent-mux-stop/scripts/stop_session.sh
index e060f5d..0b95e28 100755
--- a/.agents/skills/multi-agent-mux-stop/scripts/stop_session.sh
+++ b/.agents/skills/multi-agent-mux-stop/scripts/stop_session.sh
@@ -302,7 +302,7 @@ if purge and purge_uuid:
             print(f"purged: {db}", flush=True)
         brain = f"{home}/.gemini/antigravity-cli/brain/{purge_uuid}"
         if os.path.isdir(brain):
-            shutil.rmtree(brain)
+            shutil.rmtree(brain, ignore_errors=True)
             print(f"purged: {brain}", flush=True)
         target['agy_conversation_id_own'] = None
     elif agent == 'hermes':