diff --git a/src/cmdforge/gui/pages/tools_page.py b/src/cmdforge/gui/pages/tools_page.py
index 7763497..ded6a23 100644
--- a/src/cmdforge/gui/pages/tools_page.py
+++ b/src/cmdforge/gui/pages/tools_page.py
@@ -154,10 +154,16 @@ def get_tool_publish_state(tool_name: str) -> Tuple[str, Optional[str]]:
         return ("local", None)
 
 
-def get_tool_registry_info(tool_name: str) -> Optional[Tuple[str, str]]:
+def get_tool_registry_info(tool_name: str, fallback_owner: Optional[str] = None) -> Optional[Tuple[str, str]]:
     """
     Get registry owner/name for a tool if it's registry-sourced.
 
+    Args:
+        tool_name: Qualified or simple tool name.
+        fallback_owner: Owner slug to use when the tool has a registry_hash
+            but no owner can be determined from the path or config (e.g. the
+            user's own published tools stored in a flat directory).
+
     Returns:
         (owner, name) tuple if tool is from registry, None if local-only.
     """
@@ -185,6 +191,10 @@ def get_tool_registry_info(tool_name: str) -> Optional[Tuple[str, str]]:
             if len(parts) == 2:
                 return (parts[0], parts[1])
 
+        # Last resort: use fallback owner (current user's slug)
+        if fallback_owner:
+            return (fallback_owner, tool_name)
+
         return None
     except Exception:
         return None
@@ -804,7 +814,7 @@ class ToolsPage(QWidget):
 
     def _update_rating_bar(self, qname: str):
         """Update the rating bar widget at the bottom of the detail panel."""
-        registry_info = get_tool_registry_info(qname)
+        registry_info = get_tool_registry_info(qname, self._my_slug)
         if not registry_info:
             self.rating_bar.setVisible(False)
             return
@@ -953,7 +963,7 @@ class ToolsPage(QWidget):
             self.btn_rate.setVisible(False)
             return
 
-        registry_info = get_tool_registry_info(tool_name)
+        registry_info = get_tool_registry_info(tool_name, self._my_slug)
         if not registry_info:
             self.btn_rate.setVisible(False)
             return
@@ -1001,7 +1011,7 @@ class ToolsPage(QWidget):
 
     def _fetch_rating_if_needed(self, tool_name: str):
         """Fetch rating data for a registry tool if not cached."""
-        registry_info = get_tool_registry_info(tool_name)
+        registry_info = get_tool_registry_info(tool_name, self._my_slug)
         if not registry_info:
             return
 
@@ -1046,7 +1056,7 @@ class ToolsPage(QWidget):
             return
 
         tool_name = self._get_qualified_name() or self._current_tool.name
-        registry_info = get_tool_registry_info(tool_name)
+        registry_info = get_tool_registry_info(tool_name, self._my_slug)
         if not registry_info:
             return