GitHub PR Diff

by highlight-ing

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GitHub

About

Integrates with GitHub's Pull Request API to extract diff content, enabling automated code review and analysis workflows.

Details

Author: highlight-ing
Repository: highlight-ing/highlight-github-mcp
GitHub stars: 1
Categories: Productivity, Developer Tools, Design, Workplace, File Management, AI, API, Infrastructure, Automation

Setting up with Highlight

This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:

Download and install Highlight from highlightai.com/download
Navigate to the plugins tab and select "Add Custom Plugin"
Configure the plugin with the settings below
Plugin Name GitHub PR Diff

Command (node, npx, python, etc.) npx
Arguments
- Argument 1 -y
- Argument 2 @highlight/mcp-server
Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
Enable "Start Automatically" if you want the plugin to start when Highlight launches

Setting up with Cursor

Open Cursor's settings
Navigate to the MCP section
Click "Add new Global MCP server"
Copy and paste the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "npx"
        }
    }
}

JSON

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "/c",
                "npx",
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "cmd"
        }
    }
}

JSON

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "npx"
        }
    }
}

Setting up with Claude Desktop

Open Claude Desktop's settings
Go to the Integrations tab
Click "Add MCP Server"
Use the configuration below based on your operating system

Note: Make sure Claude Desktop is running before attempting to connect.

JSON

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "npx"
        }
    }
}

JSON

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "/c",
                "npx",
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "cmd"
        }
    }
}

JSON

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "npx"
        }
    }
}

Setting up with Windsurf

Open Windsurf's preferences
Go to the Integrations section
Click "Add MCP Integration"
Use the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "npx"
        }
    }
}

JSON

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "/c",
                "npx",
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "cmd"
        }
    }
}

JSON

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "npx"
        }
    }
}

Setting up with Cline

Open Cline's settings
Navigate to the Integrations section
Click "Add MCP Server"
Copy and paste the configuration below based on your operating system

Note: Make sure to restart Cline after adding the configuration.

JSON

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "npx"
        }
    }
}

JSON

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "/c",
                "npx",
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "cmd"
        }
    }
}

JSON

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "npx"
        }
    }
}

Setting up with Goose

Open Goose's preferences
Go to the Integrations tab
Select "MCP Servers"
Click "Add New Server"
Use the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "npx"
        }
    }
}

JSON

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "/c",
                "npx",
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "cmd"
        }
    }
}

JSON

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "npx"
        }
    }
}

From the repository

Required: Set the GitHub Personal Access Token as an environment variable:

export GITHUB_TOKEN=<your-github-token>

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

`get_diff_pr`

Retrieves the diff content from a GitHub Pull Request. Parameters: owner (string), repo (string), pr_number (integer). Returns an object containing the diff content.

Claude Desktop / Cursor

Paste into your MCP client config file to install this server.

{
    "mcpServers": {
        "github pr diff": {
            "env": {},
            "args": [
                "-y",
                "@highlight/mcp-server"
            ],
            "command": "npx"
        }
    }
}

Linux

{
    "env": [],
    "args": [
        "-y",
        "@highlight/mcp-server"
    ],
    "command": "npx"
}

Macos

{
    "env": [],
    "args": [
        "-y",
        "@highlight/mcp-server"
    ],
    "command": "npx"
}

Windows

{
    "env": [],
    "args": [
        "/c",
        "npx",
        "-y",
        "@highlight/mcp-server"
    ],
    "command": "cmd"
}

# GitHub Integration The GitHub MCP server provides functionality to extract diffs from Pull Requests. ## Available Tools ### get_diff_pr Retrieves the diff content from a GitHub Pull Request. **Parameters**: - `owner`: Repository owner/organization name - `repo`: Repository name - `pr_number`: Pull Request number **Returns**: Object containing: - `content`: String containing the PR diff ## Authentication **Required**: Set the GitHub Personal Access Token as an environment variable: ```bash export GITHUB_TOKEN=<your-github-token> ``` The token needs at least `repo` scope permissions to access private repositories. For public repositories, a token with `public_repo` scope is sufficient. ## Error Handling The server implements standard error handling: - Missing/invalid token returns `ErrorCode.AuthenticationError` - Invalid repository details return `ErrorCode.InvalidParams` - Non-existent PR returns `ErrorCode.NotFound` - Failed diff fetches return formatted error messages - Graceful shutdown on SIGINT ## Technical Details - Built using the Highlight AI MCP SDK - Uses GitHub REST API v3 - Input validation via Zod - Runs as a stdio-based MCP server - Supports Node.js >=18.0.0 ## Limitations - Rate limits apply based on GitHub API restrictions - Large diffs may be truncated according to GitHub API limits - Token requires appropriate repository access permissions

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GitHub PR Diff

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Setting up with Highlight

Setting up with Cursor

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Setting up with Claude Desktop

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Setting up with Windsurf

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Setting up with Cline

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Setting up with Goose

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From the repository

`get_diff_pr`

Claude Desktop / Cursor

Linux

Macos

Windows

Install

About

Details

Jump to

Setting up with Highlight

From the repository

get_diff_pr

Claude Desktop / Cursor

Linux

Macos

Windows

Install

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`get_diff_pr`