[Bug] Using non-streaming parameters when using MCP will return an error

[HunterWangwei]

Contact Information

43551096@qq.com

MaxKB Version

v2.3.1 (build at 2025-11-12T18:45, commit: c78e0f1)

Problem Description

stream: false 且启用 MCP 时会返回报错
{
"code": 500,
"message": "成功",
"data": {
"chat_id": "019a83f6-97fb-7350-be6f-66df013c8c39",
"id": "019a83f9-be30-7d70-96cc-949d64730b16",
"operate": true,
"content": "Exception:'generator' object has no attribute 'content'",
"is_end": true,
"completion_tokens": 0,
"prompt_tokens": 0
}
}

stream: true 时可以正常返回

Steps to Reproduce

{
"message": "你",
"stream":false,
"re_chat": true
}

The expected correct result

No response

Related log output

Additional Information

No response

[Shenguobin0102]

您好，您应该是通过应用的对话接口访问应用的，我们做了测试，这个接口在stream=false时，返回正常，您的问题没有复现，请您再查证确认一下。

[bingsogood]

我也遇到同样的问题，我是添加工具，在工具商品中添加MySQL查询工具
我这边是docker部署，[registry.fit2cloud.com/maxkb/maxkb]REPOSITORY TAG IMAGE ID CREATED SIZE
registry.fit2cloud.com/maxkb/maxkb latest 5b3adb249ff2 2 weeks ago 2.78GB
本地调试

在应用-设置-调试预览，能够使用
在API 文档： http://localhost:8080/chat/api-doc/ 中调用失败
在终端调用失败

curl -X 'POST'
'http://localhost:8080/chat/api/chat_message/019ad8cc-156c-71b3-996d-0dd1cca2ee7e'
-H 'accept: /'
-H 'Authorization: Bearer application-767526f096ada7b99d6d00f0ee5c2019'
-H 'Content-Type: application/json'
-H 'X-CSRFTOKEN: xqVkZKRFIBjYkKOBEnBvn1hiiJcezFqNq98futZK5XmmmjUM2Ma0tJ8NccczTcSg'
-d '{
"message": "怎么参加活动",
"stream": false,
"re_chat": true,
"chat_record_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6"
}'

返回结果：
{
"code": 500,
"message": "成功",
"data": {
"chat_id": "019ad8cc-156c-71b3-996d-0dd1cca2ee7e",
"id": "019ad8d6-adf1-7d52-ba93-02c0b2c65d95",
"operate": true,
"content": "Exception:'generator' object has no attribute 'content'",
"is_end": true,
"completion_tokens": 0,
"prompt_tokens": 0
}
}

[zyyfit]

您好，调用工具和mcp的时候，必须使用 stream = true 的模式 @HunterWangwei @bingsogood

[shaohuzhang1]

Bot detected the issue body's language is not English, translate it automatically. 👯👭🏻🧑‍🤝‍🧑👫🧑🏿‍🤝‍🧑🏻👩🏾‍🤝‍👨🏿👬🏿

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Hello, when calling tools and mcp, you must use the stream = true mode @HunterWangwei @bingsogood