diff --git a/hermes_cli/config.py b/hermes_cli/config.py
index d392467676f..82498c81cc2 100644
--- a/hermes_cli/config.py
+++ b/hermes_cli/config.py
@@ -2437,7 +2437,17 @@ def get_missing_skill_config_vars() -> List[Dict[str, Any]]:
     except Exception:
         return []
 
-    all_vars = discover_all_skill_config_vars()
+    try:
+        all_vars = discover_all_skill_config_vars()
+    except Exception as e:
+        # A malformed SKILL.md, unreadable external skill dir, or similar
+        # should never break `hermes update`.  Skill-config prompting is a
+        # post-migration nicety, not a blocker.
+        import logging
+        logging.getLogger(__name__).debug(
+            "discover_all_skill_config_vars failed: %s", e
+        )
+        return []
     if not all_vars:
         return []