This is a Socratic product brief coach that won't do your thinking for you. It pulls ideas out of your head through conversation, pushes back when assumptions are thin, and helps you build a brief you actually own. You can go fast path with assumption tags or coaching path where it makes you sweat the details. It spawns research agents during discovery, persists your workspace to disk in real time, and tracks decisions in a log so updates don't undo prior thinking. Works headless for automation or interactively when you need someone to argue with your half-baked feature idea until it firms up.
npx skills add https://github.com/bmad-code-org/bmad-method --skill bmad-product-brief