Compare agent skills before installing.

Plan and execute the full deprecation lifecycle for a design system component, token, or pattern — including timeline, migration paths, communication plan, and multi-phase removal. Trigger when someone says: deprecate a component, remove a component, sunset this pattern, phase out these tokens, retire this variant, replace this with, or anything involving removing or replacing something from the design system. Do NOT trigger for communicating non-deprecation changes like new releases or feature updates — use change-communication for those.

Guidance for distinctive, intentional UI design, typography, visual direction, and non-template-like product interfaces.

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.