Update app.py

app.py

@@ -15,16 +15,18 @@ agent = CodeAgent(
 # 定义 Gradio 接口
 def chat_fn(message, history):
     result = agent.run(message)
-    history.append({"role": "user", "content": message})
-    history.append({"role": "assistant", "content": result})
-    return history, history
+    if not isinstance(result, str):
+        result = str(result)
+    return result  # ✅ 只返回助手的回复
+
 
 demo = gr.ChatInterface(
     fn=chat_fn,
-    chatbot = gr.Chatbot(type="messages"),
+    chatbot=gr.Chatbot(type="messages"),
     textbox=gr.Textbox(placeholder="Ask Alfred to help plan your party..."),
     title="Alfred Party Planner Agent",
 )
 
+
 if __name__ == "__main__":
     demo.launch()