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 instead of shipped. ## Core Features & Use Cases - Ten non-negotiable standards: Checks justified motion, frequency-appropriateness, easing, sub-300ms durations, transform origins, interruptibility, GPU-only properties, accessibility, asymmetric timing, and cohesion. - Hard escalation triggers: Instantly flags transition: all, scale(0) entrances, ease-in on UI, keyframes on toasts, layout-property animation, and missing prefers-reduced-motion handling. - Structured verdict output: Produces a Before/After/Why findings table plus a tiered verdict ending in an explicit Block or Approve decision. - Use Case: Before merging a PR that adds a dropdown, toast system, or drag gesture, run this review to catch non-GPU animations, wrong transform origins, and symmetric press timing, with exact fixes cited from STANDARDS.md. ## Quick Start Review the animation code in this pull request against the motion craft standards and give me a findings table with a block or approve verdict.
