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@rn-debug-mcp/server

v1.0.5

Published

MCP Server for React Native runtime debugging

Downloads

508

Readme

@rn-debug-mcp/server

Model Context Protocol (MCP) server for React Native runtime debugging.

This is the central server for RN Debug MCP. It receives performance data from your React Native app and provides analysis tools to AI-powered IDEs like Cursor via the Model Context Protocol.

🚀 Comprehensive Setup

This server is the "brain" that analyzes data from your app. To use it, you need:

  1. MCP Server (This package): Run via npx -y @rn-debug-mcp/server in Cursor.
  2. Instrumentation: npm install @rn-debug-mcp/instrumentation (inside your app).
  3. Babel Plugin: npm install @rn-debug-mcp/babel-plugin --save-dev (for auto-tracking).

View the Full Integration Guide

Usage with Cursor

  1. Open Cursor Settings.
  2. Go to MCP section.
  3. Click Add New MCP Server.
  4. Set Name to RN Debug.
  5. Set Type to command.
  6. Set Command to:
    npx -y @rn-debug-mcp/server

Features

Exposes several tools to your AI assistant:

  • explainScreenPerformance: Get a high-level overview of why a screen is slow.
  • detectUnnecessaryRenders: Find components re-rendering with identical props.
  • getSlowComponents: List components with the highest render times.
  • detectRenderCascade: Identify chains of expensive renders.
  • detectDuplicateNetworkCalls: Find duplicate network calls.
  • readNativeLogs: Fetch and filter native logs (Android logcat / iOS simctl).

License

MIT