This is a mobile design reference that forces you to think through platform decisions instead of defaulting to web patterns on a small screen. It's built around mandatory reading files covering touch psychology, performance patterns, and platform conventions, with explicit callouts to prevent AI from suggesting ScrollView for long lists or sub-44px touch targets. The "ask before assuming" section is the real value: it makes you declare iOS versus Android, React Native versus Flutter, and whether you need offline support before writing a single line. The anti-patterns table is a checklist of things that look fine in demos but kill performance in production. Use this when you're building actual mobile apps and need to respect battery life, thumb zones, and the fact that users will lose network mid-session.
npx skills add https://github.com/davila7/claude-code-templates --skill mobile-design