# Motion Language

> Defines the site-wide motion vocabulary every Tier-4 skill consumes — duration tiers (micro 150-250ms, small 250-400ms, section 400-700ms), ONE easing family as --ease- tokens with a lib/motion.ts mirror, choreography rules (40-80ms stagger, once-only reveals, hard list of what never animates), a two-layer reduced-motion policy (CSS media query + useReducedMotion from motion/react), and a 0-3 motion-intensity dial set by the direction archetype. Invoke in the foundation phase before any animation is written, whenever a duration or easing value is needed, or when motion feels wrong ("animations everywhere", "timing feels off", "too much movement", "janky transitions", "make the motion consistent").

## Facts
- Page: https://tashan.sh/capability/skill-blyatiful1-motion-language
- tashan id: skill:blyatiful1/motion-language
- Source: https://github.com/blyatiful1/ultraweb
- Type: skill
- Category: design
- tashan score: not scored (catalogued only — too little public evidence)
- Adoption: 9.0
- Upkeep: 99.0
- Freshness: 97.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- License: MIT
- Official: no

## Install

```sh
cp -r motion-language ~/.claude/skills/
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-08-23 by tashan (https://tashan.sh) from public evidence. Scorer s5.