Update app.py

app.py

@@ -18,7 +18,8 @@ class BasicAgent:
         
     def __call__(self, question: str) -> str:
         print(f"Agent received question (first 50 chars): {question[:50]}...")
-        fixed_answer = "This is a default answer."
+        messages = [HumanMessage(content=question)]
+        result = self.graph.invoke({"messages": messages})
         print(f"Agent returning fixed answer: {fixed_answer}")
         return fixed_answer