1
The agent prompt
Paste one prompt into Claude Code, Codex or Cursor. It runs the setup, shows you the plan for approval and checks that REA is connected.
Free guide · REA (rea-agents 6.4.0)
Let your AI agent look inside any app with REA, in 5 minutes
REA is a free, open source tool that lets your coding agent inspect an app without its source code and explain how a feature works, with evidence. This guide connects it to your agent, gives you a first prompt to try and shows where its limits are.
- A ready prompt that lets your coding agent install and connect REA
- The one-command setup and the first question to ask
- 5 steps with screenshots, from setup to your first traced feature
- What it costs, what you are allowed to analyze and fixes for common errors
A look inside
What's inside
2
Your first question
The prompt that makes REA trace one feature in an app, show the evidence and build a similar version in your own project.
3
Without an agent
The terminal command that maps a JavaScript or Electron app, its modules, imports and process boundaries, into one JSON file.
🔒 Full guide after signupGood to know
Questions, answered
Is this guide free?
Yes. You sign up with your email once and get this guide plus every other guide in the library.
Is REA free?
Yes. REA is open source under the MIT license. Static JavaScript and .NET analysis need nothing else. Deep analysis of native binaries uses Hopper, Ghidra or IDA. Hopper is commercial software with a free demo, and your agent's model costs what it always costs.
Can I use it on any app?
Only on software you own or are allowed to examine, for research, learning, interoperability or debugging. The REA project does not support bypassing license checks or DRM, building cheats or copying protected code. Reverse engineering can also be restricted by law or by an app's license.
What happens after I enter my email?
We send a confirmation email. Click the link and the full guide opens. You also get the ai-toolfinder newsletter every Friday and can unsubscribe anytime.