Prototype Designer
Plans the right kind of prototype for your idea and writes a prototype.md that coding tools like Cursor or Codex can build from.
Problem
It's easy to build too much too soon, or to test an idea with a mockup that can't answer the question you actually have.
Solution
It works out what you need to learn, picks the right level of detail, and writes a prototype plan grounded in proven design practice (NN/g, the GOV.UK Prototype Kit), ready to hand to Cursor or Codex.