motion-sickness
Use when animation causes dizziness, nausea, disorientation, or vestibular discomfort
- Installs
- 487
- Last 24h
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- Security
- Not audited
Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/dylantarre/animation-principles --skill motion-sickness- 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 motion-sickness 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.
Motion Sickness Prevention
Eliminate vestibular triggers using Disney's principles safely.
Problem Indicators
- Users report dizziness or nausea
- Disorientation during navigation
- Users avoid certain features
- Complaints increase with larger screens
- Parallax or zoom effects cause issues
Dangerous Patterns
These trigger vestibular responses:
- Large-scale zoom animations
- Parallax scrolling (especially multi-layer)
- Full-screen rotations
- Rapid direction changes
- Continuous/looping background motion
- Scroll-jacking
Diagnosis by Principle
Exaggeration
Issue: Over-dramatic motion Fix: Reduce scale of transforms. Max 10-20% size change. Avoid full-screen zooms.
Arcs
Issue: Curved paths cause tracking strain Fix: Use linear motion for functional UI. Save arcs for small, optional elements only.
Follow Through
Issue: Overshooting creates whiplash effect Fix: Remove bounce/overshoot from navigation. Use critically damped springs or ease-out.
Secondary Action
Issue: Multiple moving elements cause confusion Fix: Limit to one primary motion. Remove parallax layers.
Slow In and Slow Out
Issue: Acceleration patterns cause disorientation Fix: Use consistent, predictable easing. Avoid sudden speed changes.
Quick Fixes
- Respect
prefers-reduced-motion- Non-negotiable - Remove parallax effects - Common trigger
- Avoid zoom transitions - Use fades instead
- Keep motion small - Under 100px movement
- No scroll-jacking - Let scroll be scroll
Troubleshooting Checklist
- Does animation respect
prefers-reduced-motion? - Is any element moving more than 100px?
- Are there any zoom effects?
- Is parallax present? Remove it.
- Are there continuous/looping animations?
- Can users pause or disable motion?
- Test on large display (motion amplified)
- Test for 5+ minutes continuously
Safe Alternatives
| Triggering | Safe Alternative |
|---|---|
| Zoom transition | Fade + slight scale (max 5%) |
| Parallax scroll | Static or single-layer |
| Rotation | Fade or slide |
| Bounce/spring | Ease-out (no overshoot) |
| Full-page slide | Crossfade |
Code Pattern
@media (prefers-reduced-motion: reduce) {
*,
*::before,
*::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
scroll-behavior: auto !important;
}
.parallax {
transform: none !important;
}
}
/* Safe default motion */
.safe-transition {
transition: opacity 200ms ease-out;
/* Avoid: transform with large values */
}
FAQ
What does the motion-sickness skill do?
Use when animation causes dizziness, nausea, disorientation, or vestibular discomfort
How do I install motion-sickness?
Run npx skills add https://github.com/dylantarre/animation-principles --skill motion-sickness 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/motion-sickness/ (personal) or .claude/skills/motion-sickness/ (project).
Which AI agents can use motion-sickness?
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 motion-sickness 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 motion-sickness?
It is published by dylantarre in dylantarre/animation-principles. It has 487 recorded installs.
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