Git Prompts MCP Server

This repository provides a Model Context Protocol (MCP) server that offers several commands to generate prompts based on the Git repository's content.

Acknowledgements

• This repository draws heavy inspiration from MarkItDown MCP server and the example Git MCP server.
• The AGENTS.md was adapted from the example sin this blog post: Getting Good Results from Claude Code.

Installation

Manual Installation

1. Clone this repository
2. Install dependencies: uv sync --frozen

Usage

As a MCP Server for Zed Editor

Add the following to your settings.json:

Since Zed version 0.194.3

• Source of the change: "Use standardised format for configuring MCP Servers" (#33539)

"context_servers": {
  "git_prompt_mcp": {
    "source": "custom",
    "command": "uv",
    "args": [
    "--directory",
    "/path/to/local/git_prompts_mcp_server",
    "run",
    "git-prompts-mcp-server",
    "/path/to/repo/", // parent folder of the .git directory
    "--excludes", // exclude files and directories from diff results (the server use fnmatch in the backend)
    "*/uv.lock",
    "--excludes",
    "uv.lock",
    "--excludes",
    ".gitignore",
    "--format", // format for diff results
    "json"  // options: json, text
    ],
    "env": {}
  }
}

Prior to Zed version 0.194.3

"context_servers": {
  "git_prompt_mcp": {
    "source": "custom",  // This is required for Zed version 0.193.x.
    "command": {
      "path": "uv",
      "args": [
        "--directory",
        "/path/to/local/git_prompts_mcp_server",
        "run",
        "git-prompts-mcp-server",
        "/path/to/repo/", // parent folder of the .git directory
        "--excludes", // exclude files and directories from diff results (the server use fnmatch in the backend)
        "*/uv.lock",
        "--excludes",
        "uv.lock",
        "--excludes",
        ".gitignore",
        "--format", // format for diff results
        "json"  // options: json, text
      ]
    },
    "settings": {}
  }
}

Commands

The server responds to the following commands:

1. /git-diff <ancestor_branch_or_commit>: Populate the diff results between HEAD and the specified ancestor branch or commit.
2. /generate-pr-desc <ancestor_branch_or_commit>: Generate a pull request description based on the diff results and commit history between HEAD and the specified ancestor branch or commit.
3. /git-cached-diff: Populate the diff results for the staged changes and HEAD.
4. /git-commit-messages <ancestor_branch_or_commit>: Get commit messages between the ancestor and HEAD.

Examples:

1. /generate-pr-desc main
2. /git-diff dev
3. /git-cached-diff
4. /git-commit-messages main

Tools

The server also provides the following tools for MCP-compatible clients:

• git-diff: Get a diff between the HEAD and the ancestor branch or commit.
• git-cached-diff: Get a diff between the files in the staging area (the index) and the HEAD.
• git-commit-messages: Get commit messages between the ancestor and HEAD.

Environment Variables

The server can be configured with the following environment variables, which can be set in the env section of the Zed settings.json:

• GIT_REPOSITORY: The path to the Git repository. This is automatically passed by Zed.
• GIT_EXCLUDES: A comma-separated list of file patterns to exclude from the diff results (e.g., "*/uv.lock,*.log").
• GIT_OUTPUT_FORMAT: The output format for the diff results. Can be json (default) or text.

Release Notes

0.3.0 (2025-09-05)

• Implemented the MCP tool version of the three MCP prompts: git-diff, generate-pr-desc, and git-cached-diff. This allows for a more integrated experience with MCP-compatible clients.
• Added a new command /git-commit-messages to get commit messages between a specified ancestor and HEAD.

License

MIT License. See LICENSE for details.