REA: the free repo that lets your AI reverse engineer any software
You commented REA — here's everything from the video.
REA is a free, MIT-licensed project that connects your coding agent to local reverse engineering tools via MCP and a CLI, returning the evidence behind each answer.
Set it up
- Install it
Run this in a terminal, choose your agents and approve the changes. Restart your agent afterwards.
npx rea-agents setup - Understand a feature
Replace Notes with your target app.
Understand how search works in the Notes app, show me the evidence, and build a similar feature for my project. - Trace a behaviour
From the project's own Notion case study.
Use REA to trace how Notion copies text and HTML to the system clipboard. Show the code at each step. - Ask about a calculation
From the project's own site.
Use REA to inspect Windows Calculator. Why does 200 + 10% give 220?
Good to know
- Analysis runs locally on your machine.
- Native binaries need Hopper, Ghidra or IDA; JavaScript analysis needs only Node.js.
- Only analyse software you are allowed to inspect.
- MIT licensed. Facts are from the README on 10 October 2026.
One free AI tool, every day
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Published 2026-10-11.
