Build an animation from scratch, making the decisions in the order that determines whether it feels right — should it animate at all, what purpose, which tool, which properties, which curve and duration, how it interrupts, how it exits. Writes the implementation. Use when asked to animate something, add motion, make a component feel alive, or build a transition. For critiquing existing motion use review-animations; for auditing a whole codebase use improve-animations.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Building Animations
A construction skill. It does ONE thing: turn a request for motion into an implementation that would survive a strict review. It does not audit a codebase (that's `improve-animations`), critique a diff (that's `review-animations`), hunt for places that could animate (that's `find-animation-opportunities`), or build for React Native (that's `animate-expo`).
## Operating Posture
You are a senior design engineer building the animation yourself. The bar is Emil Kowalski's animation philosophy — the same bar `review-animations` enforces. Write it so it passes that review the first time.
Two failure modes, and the first is worse:
1. **Animating something that shouldn't animate.** The gate below exists to produce zero lines of code sometimes. That's a success, not a dodge.
2. **Animating the right thing with the wrong ingredients** — `ease-in` on an entrance, `scale(0)`, keyframes on a toast, a duration that makes a dropdown feel sluggish.
Never present motion options as a menu. Make the call, state the reasoning in one line, write the code.
## Hard Rules
…
The line at the top of this page pins the label git:20260827.ca77bd1, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
GET https://markdownregistry.com/api/v1/artifacts/art_cybigm4a267f67ix
GET https://markdownregistry.com/api/v1/resolve?ref=nebutra/nebutra-sailor/animate
GET https://markdownregistry.com/api/v1/blob/f6317335da2662e92270dc0a6128bea95d7216cd751f86628e3ac6b72804e805
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
nebutra/nebutra-sailor · .agents/skills/animate-expo/SKILL.md · Build animations in React Native and Expo, making the decisions in the order that determines whether they feel right —…
nebutra/nebutra-sailor · .agents/skills/animation-vocabulary/SKILL.md · Reverse-lookup glossary that turns a vague description of a web animation or motion effect into its exact term ("the…
nebutra/nebutra-sailor · .agents/skills/apple-design/SKILL.md · Apple's approach to interface design and fluid, physical motion, translated for the web. Use when building or reviewing…
nebutra/nebutra-sailor · .agents/skills/ask-sonner/SKILL.md · Guide to Sonner, the React toast library — install and wire up the Toaster, pick the right toast() call, promise and…
nebutra/nebutra-sailor · .agents/skills/emil-design-eng/SKILL.md · This skill encodes Emil Kowalski's philosophy on UI polish, component design, animation decisions, and the invisible…
nebutra/nebutra-sailor · .agents/skills/find-animation-opportunities/SKILL.md · Search a codebase or UI for places that don't animate but should, and reject everything that shouldn't. Read-only; it…
nebutra/nebutra-sailor · .agents/skills/improve-animations/SKILL.md · Survey a codebase's animation and motion code as a senior motion advisor, then produce a prioritized audit and…
nebutra/nebutra-sailor · .agents/skills/pick-ui-library/SKILL.md · Pick the right library for a given frontend task from a curated, opinionated list — numbers, OTP inputs, charts…
nebutra/nebutra-sailor · .agents/skills/prototype/SKILL.md · Build multiple genuinely different versions of a UI piece you describe, rendered behind a visual picker so you can flip…
nebutra/nebutra-sailor · .agents/skills/review-animations/SKILL.md · Reviews animation and motion code against a high craft bar derived from Emil Kowalski's design engineering philosophy…
emilkowalski/skills · skills/animate/SKILL.md · Build an animation from scratch, making the decisions in the order that determines whether it feels right — should it…
asymmetric-al/core · .agents/skills/animate/SKILL.md · Build an animation from scratch, making the decisions in the order that determines whether it feels right — should it…
onewave-ai/claude-skills · animate/SKILL.md · Generate animated videos and motion graphics from natural language descriptions. Creates a standalone Vite + React…
quriosity-agent/qcut · qcut/.agents/skills/animate/SKILL.md · Review a feature and enhance it with purposeful animations, micro-interactions, and motion effects that improve…
aicodedecode/awesome-muse-skills · skills-imported/animate/SKILL.md · Build an animation from scratch, making the decisions in the order that determines whether it feels right — should it…
illodev/drawn-by-code · .claude/skills/animate/SKILL.md · Directs the creation of a code-made animation or video in drawn-by-code, from brief to final MP4. Use it whenever the…
wankimmy/bossku-superpowers · skills/animate/SKILL.md · Build an animation from scratch, making the decisions in the order that determines whether it feels right — should it…
