qwen-harness-mcp

qwen-harness-mcp

Exposes Qwen AI Token Plan's harness tools (web search, web extraction, code interpreter, text-to-image, and image-to-image search) as MCP tools. It enables agents to perform real-time web searches, extract webpage content, execute code in a sandbox, and search images by text or image queries.

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README

Qwen Harness MCP Server

将千问AI平台 Token Plan 的 5 个 Harness 内置工具暴露为 MCP 工具,供 Hermes Agent(或任何 MCP 客户端)调用。

工具列表

MCP Tool Harness 工具 能力
qwen_web_search web_search 联网搜索
qwen_web_extract web_extractor 网页抓取
qwen_code_interpreter code_interpreter 代码解释器(云端沙箱,有网络)
qwen_t2i_search t2i_search 文搜图
qwen_i2i_search i2i_search 图搜图

前置条件

  • 千问AI平台 Token Plan(个人版或团队版)的 API Key
  • 支持 Responses API 的模型:qwen3.7-max / qwen3.7-plus / qwen3.8 系列
  • Python 3.10+

安装

cd qwen-harness-mcp
uv venv && uv pip install -r requirements.txt
# 或
pip install -r requirements.txt

配置

编辑 config.yaml:

api_key: "sk-your-token-plan-key"
base_url: "https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/compatible-mode/v1"
model: "qwen3.7-plus"

也可通过环境变量覆盖:

  • QWEN_HARNESS_API_KEY
  • QWEN_HARNESS_BASE_URL
  • QWEN_HARNESS_MODEL

接入 Hermes Agent

hermes mcp add qwen-harness \
  --command "uv run --directory /path/to/qwen-harness-mcp python server.py"

或在 ~/.hermes/config.yaml 中手动添加:

mcp_servers:
  qwen-harness:
    command: "uv run --directory /path/to/qwen-harness-mcp python server.py"

接入其他 MCP 客户端

任何支持 MCP stdio 协议的客户端均可接入,配置 command 为:

python /path/to/qwen-harness-mcp/server.py

项目结构

qwen-harness-mcp/
├── server.py              # MCP Server 主入口
├── client.py              # Responses API 封装(重试/超时/解析)
├── config.py              # 配置加载(env > yaml > default)
├── config.yaml            # 用户配置文件(需手动填写)
├── tools/
│   ├── __init__.py
│   ├── web_search.py      # 联网搜索
│   ├── web_extract.py     # 网页抓取
│   ├── code_interpreter.py # 代码解释器
│   ├── t2i_search.py      # 文搜图
│   └── i2i_search.py      # 图搜图
├── requirements.txt
└── README.md

技术说明

  • 协议:OpenAI Responses API(POST /responses),非 Chat Completions
  • 传输:MCP stdio(Hermes 按需 spawn 子进程)
  • 重试:指数退避,最多 2 次
  • 图片:自动下载到 /tmp/qwen_harness/,可配合 vision_analyze 使用
  • 超时:普通工具 60s,code_interpreter 120s

限制

  • Token Plan 个人版禁止 API 生产自动化调用(交互式 agent 使用不受限)
  • Harness 工具按抵扣系数消耗 Credits
  • 仅 qwen3.7 / qwen3.8 系列支持原生工具调用
  • 并发:个人版 1-2 个 Agent

License

MIT

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