Update app.py

app.py

@@ -14,8 +14,7 @@ import gradio as gr
 from langchain.callbacks.base import BaseCallbackHandler
 
 
-tools = [add_numbers]
-
+from langchain.tools import YouTubeSearchTool as YTS
 # 2. 커스텀 콜백 핸들러
 class StreamingAgentCallbackHandler(BaseCallbackHandler):
     def __init__(self, q: queue.Queue):
@@ -91,7 +90,7 @@ llm = GitHubModelLLM(model="openai/gpt-4.1", token=token)
 tools = load_tools(
     ["ddg-search", "requests_all", "llm-math"],
     llm=llm,allow_dangerous_tools=True
-)
+)+[YTS()]
 
 # ──────────────────────────────
 # ✅ Python 실행 도구 (LangChain 내장)