What problem does it solve? Interfaces often ship animations that are decorative, inconsistent, or harmful to users with vestibular sensitivities, and teams lack a structured way to audit them. This Skill provides a systematic review of every animation in an interface against established motion design principles. ## Core Features & Use Cases - Multi-axis animation audit: Evaluates purpose, timing, easing, hierarchy, continuity, interruption handling, accessibility, and reduced motion compliance for each animation. - Attack pattern detection: Identifies common failures such as linear easing, inverted animation hierarchy, teleporting elements, broken interruption, and ignored prefers-reduced-motion settings. - Confidence-scaled findings: Classifies each issue as CONFIRMED, HIGH CONFIDENCE, POSSIBLE, or SPECULATIVE with exact timing values and easing functions as evidence. - Use Case: Before shipping a landing page with parallax scrolling, hover micro-interactions, and page transitions, run this review to catch a 300ms hover feedback that should be under 100ms and a parallax effect that ignores reduced motion preferences. ## Quick Start Review all animations in this interface for purpose, timing, easing, continuity, and reduced motion compliance, then report each violation with its exact values.