handle empty search

backend/main.py

@@ -1245,6 +1245,14 @@ async def search(
         if not config['search']['enabled']:
             raise HTTPException(status_code=403, detail="Search is disabled")
 
+        # Handle empty query gracefully
+        if not q or not q.strip():
+            return {
+                "results": [],
+                "query": q,
+                "message": "No search term provided"
+            }
+
         results = search_notes(config['storage']['notes_dir'], q)
 
         # Run plugin hooks

mcp_server/server.py

@@ -206,7 +206,7 @@ class MCPServer:
     
     def _tool_search_notes(self, args: dict) -> str:
         """Search notes by query."""
-        query = args.get("query", "")
+        query = args.get("query", "").strip()
         max_results = args.get("max_results")
         
         if not query: