Upload 8 files

backend.py

@@ -4,19 +4,32 @@ Backend module for MCP Agent
 Handles all the MCP server connections, LLM setup, and agent logic
 """
 import sys
-from pathlib import Path
 import os
 import re
 import asyncio
 from dotenv import load_dotenv
 from typing import Optional, Dict, List, Any
 
+from pathlib import Path  # already imported
+here = Path(__file__).parent.resolve()
+
+
 ################### --- Auth setup --- ###################
 ##########################################################
 # load the details from .env, then test it and raise as Asserterror if false
-load_dotenv()
+# load_dotenv()
 HF = os.getenv("HF_TOKEN") or os.getenv("HUGGINGFACEHUB_API_TOKEN")
-assert HF, "Set HF_TOKEN (or HUGGINGFACEHUB_API_TOKEN) in your environment/.env"
+if not HF:
+    print("WARNING: HF_TOKEN not set. The app will start, but model calls may fail.")
+else:
+    os.environ["HF_TOKEN"] = HF
+    os.environ["HUGGINGFACEHUB_API_TOKEN"] = HF
+    try:
+        from huggingface_hub import login
+        login(token=HF)
+    except Exception:
+        pass
+
 
 # then all env set to the same token to avoid env error.
 os.environ["HF_TOKEN"] = HF

huggingface.yaml

@@ -3,4 +3,4 @@
 title: mcp-stock-math
 sdk: streamlit
 app_file: frontend.py
-python_version: "3.10"
+python_version: "3.10"

requirements.txt

@@ -7,4 +7,3 @@ streamlit==1.48.0
 python-dotenv
 huggingface-hub
 fastmcp
-