Update langgraph_agent.py

langgraph_agent.py

@@ -49,7 +49,7 @@ def modulus(a: int, b: int) -> int:
 def wiki_search(query: str) -> dict:
     """Search Wikipedia for a query and return up to 2 documents."""
     try:
-        docs = WikipediaLoader(query=query, load_max_docs=2, lang="en").load()
+        docs = WikipediaLoader(query=query, load_max_docs=5, lang="en", doc_content_chars_max=7000).load()
         if not docs:
             return {"wiki_results": f"No documents found on Wikipedia for '{query}'."}
         formatted = "\n\n---\n\n".join(