Highlight Github MCP

🚀 GitHub Integration

The GitHub MCP server offers the ability to extract diffs from pull requests.

🚀 Quick Start

The GitHub MCP server provides a feature to retrieve diff content from pull requests.

✨ Features

get_diff_pr

Retrieve the diff content from a GitHub pull request.

Parameters:

• owner: The name of the repository owner/organization.
• repo: The name of the repository.
• pr_number: The number of the pull request.

Return Value: An object containing the following:

• content: A string that includes the diff of the PR.

📦 Installation

Authentication

Requirement: Set your GitHub personal access token as an environment variable:

export GITHUB_TOKEN=<your-github-token>

The token needs at least the repo permission to access private repositories. For public repositories, a token with the public_repo permission is sufficient.

💻 Usage Examples

Basic Usage

The get_diff_pr function can be used to get the diff content of a pull - request. Here is a simple example of how to call this function:

# Assume there is a Python wrapper for the get_diff_pr function
# This is just a pseudo - code example
from some_module import get_diff_pr

owner = "your_owner_name"
repo = "your_repo_name"
pr_number = 123

result = get_diff_pr(owner, repo, pr_number)
print(result["content"])

🔧 Technical Details

• Built using the Highlight AI MCP SDK.
• Utilizes the GitHub REST API v3.
• Performs input validation via Zod.
• Runs as an stdio - based MCP server.
• Supports Node.js >=18.0.0

📚 Documentation

Error Handling

The server implements standard error handling:

• An unset/invalid token returns ErrorCode.AuthenticationError.
• Invalid repository details return ErrorCode.InvalidParams.
• A non - existent PR returns ErrorCode.NotFound.
• Failure to retrieve the diff returns a formatted error message.
• Gracefully shuts down when receiving the SIGINT signal.

Limitations

• Subject to the GitHub API rate limits.
• Large diffs may be truncated according to GitHub API restrictions.
• The token requires appropriate repository access permissions.