graph test

app.py

@@ -112,7 +112,9 @@ class BasicAgent:
         print(f"[log_question] Agent received question: {state['question']}...")
         state["messages"] = [SystemMessage(content=PROMPT)]
         state["messages"].append(HumanMessage(content="Question: " + state["question"]))
-        return {}
+        return {
+            "messages": state["messages"],
+        }
 
     def final_answer(self, state: AnswerState) -> Dict[str, Any]:
         print(f"[final_answer] Agent returning answer: {state['answer']}")