This is a prompt that resembles the classical TDD approach and the idea that we need to reproduce the bug first with a failed test, before fixing it.
The author suggests to add this to CLAUDE.md or AGENTS.md:
When I report a bug, don't start by trying to fix it. Instead, start by writing a test that reproduces the bug. Then, try to fix the bug and prove it with a passing test.
In the original tweet, Ming also had the part to use subagents, but in my opinion/testing, this is an optional overkill.
I've also shot a video with this prompt in action:
