What problem does it solve? Animation code often passes review because it technically works while feeling sluggish, firing too often, animating layout properties, or ignoring reduced-motion preferences. This Skill applies a strict, opinionated review bar to motion code so feel-breaking regressions get flagged before they ship. ## Core Features & Use Cases - Ten Non-Negotiable Standards: Checks every animation for justified motion, frequency-appropriateness, responsive easing, sub-300ms UI durations, correct transform origins, interruptibility, GPU-only properties, accessibility, asymmetric timing, and cohesion. - Escalation Triggers & Remedial Hierarchy: Flags hard violations like transition: all, scale(0), ease-in on UI, and keyframes on toasts, then proposes fixes ordered from deletion down to polish. - Precise Standards Reference: Cites exact cubic-bezier curves, duration tables, spring configs, and gesture rules from STANDARDS.md instead of approximating values. - Use Case: A developer opens a pull request adding a dropdown that animates with ease-in over 400ms from scale(0). The review flags the easing, duration, and origin, and returns a findings table with concrete replacement code. ## Quick Start Ask the AI to review the animation and motion code in your current diff against the animation craft standards and produce a findings table with a verdict.