frontend-developer
Use when implementing animations in code, building UI transitions, or when a developer needs practical animation guidance for web/mobile applications.
- Installs
- 558
- Last 24h
- —
- Trending rank
- —
- Security
- Not audited
Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/dylantarre/animation-principles --skill frontend-developer- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads frontend-developer automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Frontend Developer: Animation Implementation Guide
You are a frontend developer focused on implementing performant, maintainable animations. Apply Disney's 12 principles through code.
The 12 Principles for Code Implementation
1. Squash and Stretch
Use transform: scale() to convey impact. Buttons compress on press, elements stretch during fast movement. Animate scale properties for elastic feedback.
2. Anticipation
Add preparation states before actions. Buttons pull back before navigation, cards lift before expanding. Use transition-delay to sequence setup movements.
3. Staging
Control z-index, opacity, and blur to direct focus. Dim backgrounds during modals, spotlight active elements. Use focus-visible and ARIA for accessibility.
4. Straight Ahead vs Pose to Pose
Straight ahead: CSS @keyframes for organic movement. Pose to pose: JavaScript animation libraries (GSAP, Framer Motion) for precise control between states.
5. Follow Through and Overlapping Action
Stagger child animations with transition-delay. Headers arrive before body content, icons follow buttons. Use will-change sparingly for performance.
6. Slow In and Slow Out
Replace linear timing with ease-in-out, cubic-bezier() curves. Quick starts feel snappy, gradual stops feel natural. Match easing to action type.
7. Arc
Use motion-path or transform sequences for curved movement. Avoid purely horizontal/vertical transitions. Bezier curves in JavaScript for complex paths.
8. Secondary Action
Layer subtle animations: shadows shift during hover, gradients pulse during loading, micro-movements during idle. Don't distract from primary action.
9. Timing
Standard: 200-300ms for UI feedback. Fast: 100-150ms for hover states. Slow: 400-600ms for page transitions. Use CSS custom properties for consistent timing.
10. Exaggeration
Scale transforms 10-20% beyond target, then settle. Overshoot animations feel energetic. Use spring physics in JavaScript libraries for bounce effects.
11. Solid Drawing
Maintain consistent transform origins. Respect element boundaries during animation. Use transform-box and transform-origin for predictable behavior.
12. Appeal
Smooth 60fps animations using GPU-accelerated properties (transform, opacity). Avoid animating width, height, margin. Test on low-powered devices.
Implementation Checklist
- Prefer CSS transitions for simple state changes
- Use
prefers-reduced-motionmedia query for accessibility - Batch DOM reads/writes to prevent layout thrashing
- Profile animations in DevTools Performance tab
- Consider animation libraries for complex sequences
FAQ
What does the frontend-developer skill do?
Use when implementing animations in code, building UI transitions, or when a developer needs practical animation guidance for web/mobile applications.
How do I install frontend-developer?
Run npx skills add https://github.com/dylantarre/animation-principles --skill frontend-developer in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/frontend-developer/ (personal) or .claude/skills/frontend-developer/ (project).
Which AI agents can use frontend-developer?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is frontend-developer safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains frontend-developer?
It is published by dylantarre in dylantarre/animation-principles. It has 558 recorded installs.
More from dylantarre/animation-principles
video-motion-graphics
dylantarre/animation-principles
Use when creating After Effects compositions, Premiere Pro motion, video titles, explainer videos, or broadcast motion graphics.
mobile-touch
dylantarre/animation-principles
Use when designing iOS/Android gestures, haptic feedback, touch interactions, or native mobile animations.
framer-motion
dylantarre/animation-principles
Use when implementing Disney's 12 animation principles with Framer Motion in React applications
motion-designer
dylantarre/animation-principles
Use when designing visual motion systems, creating animation specifications, or when a designer needs guidance on crafting beautiful, meaningful movement.
micro-interactions
dylantarre/animation-principles
Use when designing small UI feedback moments like button states, toggles, form validation, loading indicators, or notification badges.
web-motion-design
dylantarre/animation-principles
Use when building CSS animations, JavaScript transitions, React/Vue motion, or any browser-based animation work.
Popular frontend & design skills
setup-matt-pocock-skills
mattpocock/skills
Configure this repo for the engineering skills: set up its issue tracker, triage label vocabulary, and domain doc layout. Run once before first use of the other engineering skills.
frontend-design
anthropics/skills
Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with aesthetic direction, typography, and making choices that don't read as templated defaults.
hyperframes-animation
heygen-com/hyperframes
All animation knowledge for HyperFrames — atomic motion rules, multi-phase scene blueprints, scene transitions, broader motion-design techniques, AND the seven runtime adapters (GSAP default, plus Lottie, Three.js, Anime.js, CSS keyframes, Web Animations API, TypeGPU). Use for any motion or animation task: pick 2-4 rules and compose, or load a blueprint, or look up runtime-specific API (e.g. GSAP eases / Lottie player / Three.js mixer). Also covers auditing an existing composition's choreography (animation map) and 24 named text-animation effects. HyperFrames-native: single paused timeline, seek-safe, deterministic.
prototype
mattpocock/skills
Build a throwaway prototype to answer a design question. Use when the user wants to sanity-check whether a state model or logic feels right, or explore what a UI should look like.
hyperframes-core
heygen-com/hyperframes
The HyperFrames composition contract — build one renderable project. Use for composition structure, the data- timing attributes, class="clip", tracks, sub-compositions, variables, framework-owned media playback, deterministic-render rules, and validation. Read before writing composition HTML.
vercel-react-best-practices
vercel-labs/agent-skills
React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.