Return type standardization

tools/wikipedia.py

@@ -3,7 +3,7 @@ import urllib.parse
 import json
 import re
 import asyncio
-from typing import Any, Dict, Optional
+from typing import Any, Dict, List, Optional
 from .utils import ToolError
 import config
 
@@ -130,7 +130,7 @@ async def _fetch_toc(title: str) -> Optional[str]:
         
     return "\n".join(lines)
 
-async def handle(args: Dict[str, Any]) -> Dict[str, Any]:
+async def handle(args: Dict[str, Any]) -> List[Dict[str, Any]]:
     """
     Main handler for the browse_wikipedia tool.
     Supports modes: summary, toc, section, and search.
@@ -170,4 +170,4 @@ async def handle(args: Dict[str, Any]) -> Dict[str, Any]:
     else:
         raise ToolError(f"Invalid mode '{mode}'. Supported modes: summary, toc, section, search")
             
-    return {"text": result}
+    return [{"type": "text", "text": result}]