Code Reaper

What is Code Reaper?

Code Reaper is an AI-driven MCP tool for Cursor that finds and removes dead JavaScript by exploring real UIs and capturing V8 coverage. It provides risk scoring, patch generation, and verification to safely eliminate unused code.

How to use Code Reaper?

Install via pip install codereaper and install Chromium with playwright install chromium. Run codereaper to configure your Gemini API key in ~/.cursor/mcp.json, then restart Cursor and ask the assistant to find dead code on a URL.

Key features of Code Reaper?

• Autonomous UI exploration via Index browser agent
• V8 precise coverage to identify zero-execution functions
• Risk scoring and removal recommendations
• Patch generation and optional verification replay
• MCP integration for Cursor workflows
• Rollback support with snapshots

Use cases of Code Reaper?

• Find dead JavaScript on a local dev server
• Generate and apply patches to remove dead code safely
• Verify no regressions after removal by re-running browser agent
• Rollback changes if something breaks
• Scan multiple pages to identify unused code across a project

FAQ from Code Reaper

What are the prerequisites for Code Reaper?

Python 3.11+, Playwright Chromium, and a Gemini API key (OpenAI or Anthropic can also be used if you change providers).

How do I install Chromium for Code Reaper?

Run playwright install chromium. If the browser doesn’t open, reinstall Chromium with that command.

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