Takes your PRD markdown and spits out the prd.json that ralph-tui needs to run autonomously. The real value is how it handles quality gates: it finds your typecheck and lint commands in the PRD, then appends them to every story's acceptance criteria so ralph knows what needs to pass. It also flattens complex PRDs into the exact schema ralph expects (a flat object with userStories at root, not wrapped in anything). The anti-patterns section is unusually detailed because apparently everyone's first instinct is to nest things in a "prd" wrapper object. Worth using if you're planning multiple ralph runs, less so for one-off tasks where you'd just write the JSON by hand.
npx skills add https://github.com/subsy/ralph-tui --skill ralph-tui-create-json