Update agent.py

agent.py

@@ -1,6 +1,7 @@
-# agent.py — final version with working ReActAgent
+# agent.py — stable ReActAgent version with API key check and error logging
 
 import asyncio
+import os
 from llama_index.llms.openai import OpenAI
 from llama_index.core.tools import FunctionTool
 from llama_index.core.agent.react.base import ReActAgent
@@ -9,6 +10,12 @@ from langchain_community.tools import DuckDuckGoSearchRun, WikipediaQueryRun
 from langchain_experimental.tools.python.tool import PythonREPLTool
 from langchain_community.document_loaders import YoutubeLoader
 
+# Optional log check for Hugging Face Secrets
+if os.getenv("OPENAI_API_KEY"):
+    print("✅ Detected OPENAI_API_KEY in environment")
+else:
+    print("⚠️  Missing OPENAI_API_KEY — LLM may fail")
+
 # Tool wrappers
 def search_duckduckgo(query: str) -> str:
     return DuckDuckGoSearchRun().run(query)
@@ -36,26 +43,33 @@ llm = OpenAI(model="gpt-4")
 agent = ReActAgent.from_tools(
     tools=TOOLS,
     llm=llm,
-    verbose=False,
+    verbose=True,
     system_prompt="""
 You are an expert AI assistant participating in the GAIA benchmark.
 
 Your task is to answer questions as precisely and exactly as possible. Each answer is evaluated automatically—strict formatting matters.
 
 Rules:
-1. Output ONLY the final answer—NO explanation or commentary.
+1. Output ONLY the final answer — no explanation or commentary.
 2. Format exactly as requested (lists, names, numbers, chess moves, currency).
-3. Use tools as needed—no guessing.
-""",
+3. Use tools as needed — no guessing.
+"""
 )
 
+# Safe sync wrapper
 def answer_question_sync(question: str) -> str:
     try:
         response = agent.chat(question)
-        return response.response.content.strip()
+        if hasattr(response, "response") and hasattr(response.response, "content"):
+            return response.response.content.strip()
+        elif isinstance(response, str):
+            return response.strip()
+        else:
+            return str(response)
     except Exception as e:
+        print(f"❌ Exception while answering: {e}")
         return f"[ERROR] {e}"
 
+# Async wrapper for FastAPI/Gradio
 async def answer_question(question: str) -> str:
-    # wrap synchronous call in asyncio to keep compatibility
     return answer_question_sync(question)