Gives you the full Apple Human Interface Guidelines split into 14 separate skills organized by platform and topic. You get iOS, macOS, visionOS, watchOS, and tvOS guidance covering everything from foundations and components to input patterns and platform technologies. Useful when you're building something for an Apple platform and need to check spacing rules, component behavior, or design patterns without leaving your editor. The split structure means you can pull just the pieces you need instead of dumping the entire HIG into context. Curated by raintree-technology and published as an Open Design catalog entry, so your agent can discover it during planning when design system questions come up.
npx skills add https://github.com/nexu-io/open-design --skill apple-hig