iflow-mcp_andy-aranda-pr-reviewer 0.1.2

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🤖 PR Reviewer with Claude + Notion + GitHub

This project automates the analysis of Pull Requests (PRs) using a LLM (Claude) connected via the MCP (Model Context Protocol).

The system receives a PR link, generates a technical summary, and stores it in a Notion page as documentation.

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🧩 Architecture

1. The user sends a PR URL to Claude Desktop.
2. Claude interprets the request and uses its internal MCP Client.
3. The MCP Client sends a structured request to the local MCP Server.
4. The MCP Server acts as an adapter to fetch PR data from GitHub and save a summary to Notion, using both platforms’ APIs.
5. The retrieved and processed information is returned to Claude, who presents it to the user as a technical summary.
6. Finally, the information is automatically saved to a Notion page.

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✨ Features

• Automatically fetches PR changes via GitHub API.
• Uses Claude Desktop to generate a semantic analysis of the code.
• Creates a Notion entry with the generated summary.
• Modular and extensible: you can add more tools to the MCP server.

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🚀 How It Works

1. Claude Desktop detects the MCP server when it runs locally.
2. The user sends a PR link to Claude.
3. Claude calls the MCP server and uses:
   • fetch_pr → fetches PR metadata and diffs from GitHub.
   • create_notion_page → saves the analysis in a new Notion page.
4. The whole process is triggered from Claude's interface with no manual steps.

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🔧 Requirements

• Python 3.10+
• Claude Desktop
• Account / API key from:
  • GitHub
  • Notion

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⚙️ Setup

1. Install uv (lightweight Python environment manager):

   curl -LsSf https://astral.sh/uv/install.sh | sh
   

2. Initialize project:

   uv init pr_reviewer
   cd pr_reviewer
   uv venv
   source .venv/bin/activate
   

3. Install dependencies:

   uv add "mcp[cli]" requests python-dotenv notion-client
   

4. Create .env file:

   GITHUB_TOKEN=ghp_***************
   NOTION_API_KEY=secret_**************
   NOTION_PAGE_ID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
   

5. Configure Claude Desktop with the claude_desktop_config.json file, e.g.:

   {
     "mcpServers": {
       "pr-reviewer": {
         "command": "/path/to/python",
         "args": ["/path/to/pr_anayzer.py"],
         "cwd": "/path/to/project"
       }
     }
   }
   

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🧪 Usage

1. Run the MCP server:

   python pr_anayzer.py
   

2. Open Claude Desktop and pass a PR link:

   https://github.com/your_username/your_repo/pull/1
   

3. Claude will analyze the PR and ask whether to save the result in Notion.

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📌 Possible Improvements

• Full automation using n8n or GitHub Actions.
• PR validation with custom rules.
• Integration with other tools like Slack or ClickUp.