Update helper.py

helper.py

@@ -47,6 +47,9 @@ repl_tool = Tool(
 )
 
 
+from langchain_community.tools import TavilySearchResults
+from langchain.tools import Tool
+from typing import List, Optional
 from langchain_community.tools import TavilySearchResults
 from langchain.tools import Tool
 from typing import List, Optional
@@ -77,26 +80,26 @@ def get_travily_api_search_tool(
     Returns:
         A LangChain Tool configured for Tavily Search.
     """
+
+    # Prepare parameters for TavilySearchResults
+    # Ensure include_domains and exclude_domains are lists, even if empty
+    # This resolves the Pydantic ValidationError
+    _include_domains = include_domains if include_domains is not None else []
+    _exclude_domains = exclude_domains if exclude_domains is not None else []
+
+
     tavily_search = TavilySearchResults(
-        max_results=5,             # Increased from 3 to 5 (or more) for a larger pool of data.
-                                   # This increases the chance of finding the correct answer even if rankings shift.
-        include_answer=False,      # **CRITICAL CHANGE for GAIA L1/L2:**
-                                   # For precise factual answers, it's generally better to
-                                   # let YOUR agent's LLM synthesize the answer from raw snippets.
-                                   # Tavily's `include_answer` uses its own LLM which adds another
-                                   # layer of potential variability and might not always be perfectly aligned
-                                   # with GAIA's strict answer format.
-        include_raw_content=False, # Good for saving tokens, keep as is.
-        include_images=False,      # Good for saving tokens, keep as is.
+        max_results=5,
+        include_answer=False,
+        include_raw_content=False,
+        include_images=False,
         tavily_api_key=tavily_api_key,
-        # Incorporating new parameters for better control:
-        search_depth=search_depth, # Passed from function argument, default 'advanced'
-        include_domains=include_domains,
-        exclude_domains=exclude_domains,
+        search_depth=search_depth,
+        include_domains=_include_domains,  # Pass the validated list
+        exclude_domains=_exclude_domains,  # Pass the validated list
         time_range=time_range
     )
 
-    # Updated description to reflect changes and emphasize strict input/output for GAIA
     return Tool(
         name="tavily_search",
         description="""
@@ -130,7 +133,6 @@ def get_travily_api_search_tool(
         """,
         func=tavily_search.run,
     )
-
 import requests
 from langchain.tools import Tool
 import os