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Pytest MCP Server

@tosin2013

代码仓库

基本信息

分类

其他

传输方式

stdio

作者

tosin2013

提交者

Tosin Akinosho

关于 Pytest MCP Server

A Model Context Protocol (MCP) server for debugging pytest failures using systematic debugging principles.

#pytest#debugging#test-framework

Pytest MCP Server 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "pytest-mcp-server": {
      "command": "pytest-mcp-server",
      "args": [
        "start"
      ],
      "env": {
        "DATA_DIR": "./pytest-data"
      }
    }
  }
}

Pytest MCP Server 工具

工具列表暂未提供

当前收录暂时没有可展示的工具列表，不代表服务没有工具。请查阅项目文档了解支持的能力。

工具是从 README 中自动提取的。维护者可以在 ## Tools 标题下列出工具,即可填充这部分内容。

概览

What is Pytest Mcp Server?

Pytest Mcp Server is an MCP server for debugging pytest failures using systematic debugging principles. It provides tools to register, analyze, and resolve test failures, and is production‑ready for use with MCP clients.

How to use Pytest Mcp Server?

Install globally via npm install -g pytest-mcp-server. Add to an MCP client (e.g., Claude Desktop) with command pytest-mcp-server start or run as HTTP server using pytest-mcp-server start-http. Data directory is configurable via the DATA_DIR environment variable (default ./data).

Key features of Pytest Mcp Server

  • Register and list test failures
  • Get detailed failure information
  • Apply systematic debugging principles
  • Analyze failure patterns
  • Generate debugging prompts for LLMs
  • Get pytest documentation guidance

Use cases of Pytest Mcp Server

  • Debug a failing test by registering its details and applying debugging principles.
  • Analyze multiple test failures to identify recurring patterns.
  • Automate debugging prompts for LLMs based on test failure data.
  • Integrate with Claude Desktop or other MCP clients for interactive debugging.

常见问题

1

What runtime does Pytest Mcp Server require?

Node.js 18.19.0 or higher and npm or yarn.

2

Where does the server store data?

Data is stored in JSON files (`failures.json` and `debug_sessions.json`) in the `DATA_DIR` directory (default `./data`).

3

Is the server production-ready?

Yes, it is fully functional and has been tested with MCP Inspector and real MCP clients. All 8 tools work correctly.

4

What known issues exist?

mcp-framework 0.2.13 returns validation errors with `"type": "error"` instead of the MCP‑compliant `"type": "text"`. This only affects the MCP Testing Framework – real usage is unaffected.

5

How can I configure it for Claude Desktop?

Add a JSON entry to your Claude Desktop MCP configuration with command `pytest-mcp-server` and arguments `["start"]`. You can set `DATA_DIR` in the environment variables.

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