MG AI Blog

Hands on AI tests from my YouTube videos: what I tried, what it cost, what worked, and the prompts and Claude Code skills you can reuse.

How to Reverse Engineer Anything in Claude Code: my REA test, lessons and prompt tips

I gave Claude Code a compiled iPhone app with no source code and asked it to rebuild one screen twice, once without REA and once with it. Here is what each run got right, what it cost, and the prompt lines I now add every time.
October 11, 2026