skill-apple-design

Reverse-lookup glossary that turns a vague description of a web animation into its exact term. Use when the user asks "what's it called when…".

Apple's approach to interface design and fluid, physical motion, translated for the web. Use when building or reviewing gesture-driven UI, spring animations, drag/swipe/sheet interactions, momentum and interruptible transitions, translucent materials and depth, typography (optical sizing, tracking, leading), reduced-motion, or the design foundations (feedback, spatial consistency, restraint) behind Apple-style interfaces.

Emil Kowalski's philosophy on UI polish, component design, animation decisions, and the invisible details that make software feel great. Based on years of experience at Vercel and Linear.

Search a codebase or UI for places that don't animate but should, and reject everything that shouldn't. Read-only; proposes motion with exact values, does not implement.

Survey a codebase's animation and motion code as a senior motion advisor, then produce a prioritized audit and self-contained implementation plans for other agents to execute. Read-only on source code.

Reviews animation and motion code against a high craft bar derived from Emil Kowalski's design engineering philosophy. Default to flagging; approval is earned.