Prototype

Moves you through content-first, wireframe, low-fi, high-fi, and code in that order, refusing to let you skip ahead before you've validated what matters at each level. The workflow includes user-journey mapping with error paths and edge cases, plus usability-testing scripts with concrete success criteria. Most prototyping tools let you jump straight to pixel-perfect mockups, but this enforces the discipline of answering "do we need this feature" before "should this button be blue." High-fidelity and code outputs respect the same token and accessibility standards as the design-code skill. Use it when you want structured validation gates instead of building the whole thing and hoping users don't hate it.