080104 motion animation

Skill natuleadan/skills/skills/080104-motion-animation

Multi-domain agent skills collection for AI coding agents (Claude, Cursor, Copilot, OpenCode, and more). Covers programming, biology, cooking, and future domains. Installable via npx skills add.

Install

npx -y skills add natuleadan/skills --skill 080104-motion-animation

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

2 stars2 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

What its author says it does

Copied from the file, not written here

Motion design and animation: timing, easing, spring physics, micro-interactions, reduced motion, and performance for frontend interfaces.

The file declares its own license as MIT. That is the author’s claim about this one file, and it is not the same thing as the license GitHub reports for the repository, which is listed with the other numbers below.

SKILL.md

1.8 KB, as published. Nobody here has run it

Motion & Animation Principles

Animation and motion design for frontend interfaces — timing, easing, physics, micro-interactions, and performance. Covers both brand (expressive) and product (task-serving) motion.

References

Topic	File
Timing values, easing curves, CSS/JS implementations, platform standards	references/timing-easing.md
Spring physics, spatial continuity, shared transitions, reduced motion, interruption handling	references/motion-principles.md
Press feedback, ripple, skeleton, toast, toggle, dropdown, focus, tabs, progress	references/micro-interactions.md

Core Rules

Timing: Micro-interactions 150-300ms. Complex transitions ≤400ms. Exit 60-70% of enter. Stagger 30-50ms per item.
Easing: Ease-out for entering (exponential: quart/quint/expo), ease-in for exiting. No bounce, no elastic, no linear for UI.
Performance: Animate transform/opacity only. Never width/height/top/left. Interruptible animations. 60fps (~16ms/frame).
Reduced motion: Respect prefers-reduced-motion. Data readable immediately. No orchestrated page-load sequences.
Product vs Brand: Product = 150-250ms, conveys state only. Brand = more expressive, spring physics, stagger, shared elements.

When to Use

Adding micro-interactions to buttons/toggles
Designing page transitions
Implementing loading animations
Creating gesture feedback
Reviewing motion performance
Ensuring reduced-motion support

Gives 2 of the 12 instructions most css styling skills give

Counted across 586 of the 596 authors here whose files we hold, read 2026-08-06

avoid excessive centered layoutsin 55 of 586, across 12 files
bundle code into single HTML filein 54 of 586, across 14 files
Respect prefers-reduced-motion user settingshere, and in 52 of 586, across 35 files
avoid purple gradientsin 51 of 586, across 11 files
avoid uniform rounded cornersin 51 of 586, across 11 files
avoid Inter fontin 51 of 586, across 11 files
edit generated files to develop artifactin 50 of 586, across 10 files
animate only transform and opacity propertieshere, and in 43 of 586
Make touch targets at least 44x44 pixelsin 41 of 586, across 15 files
Ensure minimum color contrast of 4.5:1in 39 of 586, across 10 files
use tailwind cssin 39 of 586, across 24 files
Use SVG icons instead of emojisin 38 of 586, across 11 files

Said here and by no other author read

Make data readable immediately

Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once.