prevent leakage of morph instances between tasks

model_tools.py

@@ -28,7 +28,7 @@ Usage:
 
 import json
 import asyncio
-from typing import Dict, Any, List
+from typing import Dict, Any, List, Optional
 
 from tools.web_tools import web_search_tool, web_extract_tool, web_crawl_tool, check_firecrawl_api_key
 from tools.terminal_tool import terminal_tool, check_hecate_requirements, TERMINAL_TOOL_DESCRIPTION