Spins up a single mobile screen inside a pixel-accurate iPhone 15 Pro frame. You get six archetypes to pick from (feed, detail, onboarding, profile, checkout, focus), paste one into the seed template, and fill in real copy. The frame comes pre-built with Dynamic Island, status bar SVGs, and home indicator so you're not reinventing device chrome every time. Strict craft rules keep it honest: 44px tap targets, two-use accent budget, display type in serif, numerics in mono. Ships as a self-contained HTML artifact. Best for when a brief says "mobile app" or "iOS mockup" and you need something that looks like a real screen, not a toy.
npx skills add https://github.com/nexu-io/open-design --skill mobile-app