joy-delight — Claude Code skill: what it does, how to install
Guides coding agents in designing playful UI animations based on Disney principles. Useful for reward states, celebrations, and confetti effects.
npx skills add dylantarre/animation-principles --skill joy-delight -a claude-codeWhat joy-delight does
The skill teaches agents playful interface motion. It relies on Disney animation principles adapted for web design, such as 30–40% squash on impact and parabolic motion paths.
It includes exact durations and CSS easing curves. For example, bounce effects use cubic-bezier(0.34, 1.56, 0.64, 1), while celebration sequences run for 400–600ms. Without horizontal expansion during squashing, elements lose their perceived physical mass.
What it helps with
- tune spring animations for success dialogs
- set timing and CSS easings for confetti bursts
- add secondary particle motion to like buttons
- create bouncy reveal effects for unlocked achievements
Example prompts for the agent
- Create a confetti celebration animation for checkout completion
- Animate this reward badge with a pop-in and bounce using
--joy-bounce - Add a playful like button animation with radiating heart particles
How to install joy-delight
1Skills CLI (Vercel)
npx skills add dylantarre/animation-principles --skill joy-delight -a claude-code2Manually: put the files in place
~/.claude/skills/joy-delight/SKILL.mdCopy the whole skill folder; for one project use .claude/skills/joy-delight/
1Skills CLI (Vercel)
npx skills add dylantarre/animation-principles --skill joy-delight -a codex2Manually: put the files in place
.agents/skills/joy-delight/SKILL.mdFor all projects use ~/.agents/skills/
1Skills CLI (Vercel)
npx skills add dylantarre/animation-principles --skill joy-delight -a cursor2Manually: put the files in place
.cursor/skills/joy-delight/SKILL.mdCursor also reads .agents/skills/ and .claude/skills/
1GitHub CLI
gh skill install dylantarre/animation-principles joy-delight2Manually: put the files in place
.github/skills/joy-delight/SKILL.md1Skills CLI (Vercel)
npx skills add dylantarre/animation-principles --skill joy-delight -a gemini-cli2Platform CLI
gemini skills install https://github.com/dylantarre/animation-principles --path skills/06-by-emotional-outcome/joy-delightManually: put the files in place
.devin/skills/joy-delight/SKILL.mdThe legacy .windsurf/skills/ path still works
Skills CLI (Vercel)
npx skills add dylantarre/animation-principles --skill joy-delight -a opencodeClaude.ai
Zip the folder and upload it in Settings → Capabilities → Skills
Step by step, with commands for each platform: How to install skills in Claude Code: five ways
Questions about joy-delight
How to install joy-delight in Claude Code?
Run npx skills add dylantarre/animation-principles --skill joy-delight -a claude-code. The skill file lands in ~/.claude/skills/joy-delight/SKILL.md.
What does the joy-delight skill do?
It gives your AI assistant concrete timing guidelines and cubic-bezier curves for upbeat UI states. It adapts classic animation techniques like anticipation and secondary motion to web components.
Which CSS easing curves are included in joy-delight?
It supplies ready-to-use variables like --joy-bounce with cubic-bezier(0.34, 1.56, 0.64, 1), --joy-pop, and --joy-elastic.
Source text
SKILL.md · MIT
--- name: joy-delight description: Use when creating animations that evoke happiness, surprise, or delightful moments in the user experience. --- # Joy & Delight Animation Create animations that spark happiness, pleasant surprise, and memorable delight. ## Emotional Goal Joy emerges from unexpected pleasures, playful movements, and moments that exceed expectations. Delight comes from animations that feel alive, responsive, and genuinely fun. ## Disney Principles for Joy ### Squash & Stretch Exaggerate bouncy, elastic movements. Objects that squash 30-40% on impact feel alive and playful. Use for success states, rewards, and celebrations. ### Anticipation Build excitement before reveals. A slight pullback (100-150ms) before a pop-in creates satisfying payoff. Perfect for notifications and achievements. ### Staging Draw focus to joyful moments. Clear visual hierarchy ensures the delightful element gets full attention. Dim surroundings during celebration animations. ### Straight Ahead Action Create spontaneous, organic movements for confetti, particles, and celebration effects. Randomized paths feel natural and exciting. ### Follow Through & Overlapping Action Let elements overshoot and settle with bouncy secondary motion. Hair, ribbons, and decorative elements should continue moving after main action. ### Slow In & Slow Out Use asymmetric easing—quick starts with slow, satisfying landings. `cubic-bezier(0.34, 1.56, 0.64, 1)` creates playful overshoot. ### Arc Bouncing, curved trajectories feel more joyful than linear paths. Elements should travel in parabolic arcs during celebrations. ### Secondary Action Add sparkles, particles, or wobbles to primary animations. A "like" heart that radiates small hearts amplifies joy. ### Timing Fast, snappy timing (150-250ms) feels energetic. Quick bursts with micro-pauses create rhythm. Success animations: 200-400ms. ### Exaggeration Push proportions and movements 20-30% beyond realistic. Oversized bounces, stretched smiles, and amplified reactions. ### Solid Drawing Maintain volume during stretchy movements. Squashed elements should expand horizontally to preserve mass—this reads as physicality. ### Appeal Round shapes, bright colors, and smooth curves. Asymmetry in timing and position adds character and charm. ## Timing Recommendations | Element | Duration | Easing | |---------|----------|--------| | Pop-in | 200-300ms | `ease-out-back` | | Bounce | 300-500ms | `spring(1, 80, 10)` | | Confetti | 800-1200ms | `ease-out` | | Celebration | 400-600ms | `ease-out-elastic` | ## CSS Easing ```css --joy-bounce: cubic-bezier(0.34, 1.56, 0.64, 1); --joy-pop: cubic-bezier(0.175, 0.885, 0.32, 1.275); --joy-elastic: cubic-bezier(0.68, -0.55, 0.265, 1.55); ``` ## When to Use - Success confirmations and completions - Achievement unlocks and rewards - Onboarding celebrations - Easter eggs and surprises - Positive feedback states - Welcome animations
© dylantarre · MIT · dylantarre/animation-principles