What problem does it solve?
Motion requirements often stay informal, causing accessibility gaps, inconsistent easing/timing, missing reduced-motion parity, and unprovable runtime claims during design and handoff.
Core Features & Use Cases
- Motion system contract: Defines named timing tiers, easing tokens, choreography rules, and approval boundaries for when motion is allowed or must be removed.
- Accessible fallback planning: Requires no-motion equivalents and reduced-motion handling tied to evidence rather than taste.
- Verification-ready output: Enforces anti-AI-slop evidence, gate IDs, and an output report contract that separates static review from runtime proof.
- Specialist routing: Delegates actual playback/implementation to runtime-focused skills (e.g., Lottie/Rive, WebGL/Canvas, generated video) after the system contract is set.
Quick Start
Use motion-effect-system to define a token-governed animation recipe and its reduced-motion/no-motion fallback before routing implementation to runtime specialists for a specific UI state or handoff artifact.