Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add dylantarre/animation-principles --skill ux-frictiongit clone --depth 1 https://github.com/dylantarre/animation-principlesWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/dylantarre/animation-principles/ux-friction)<a href="https://agentmods.dev/skills/dylantarre/animation-principles/ux-friction"><img src="https://agentmods.dev/badge/skills/dylantarre/animation-principles/ux-friction/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/dylantarre/animation-principles/ux-friction"><img src="https://agentmods.dev/badge/skills/dylantarre/animation-principles/ux-friction.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00018 | $0.00503 |
| Opus 5 | $0.00009 | $0.00251 |
| Sonnet 5 | $0.00004 | $0.00101 |
| Haiku 4.5 | $0.00002 | $0.00050 |
Grade A, and why
ux-friction scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UX Friction
Diagnose animations that block, confuse, or frustrate users.
Problem Indicators
- Users wait for animations to finish
- Confusion about what happened
- Repeated clicks/taps during animation
- Users skip or abandon tasks
- "Where did that go?" moments
Diagnosis by Principle
Timing
Issue: Animation too slow for the context Fix: Match duration to user intent. Micro-interactions: 100-200ms. Transitions: 200-400ms. Never block input.
Anticipation
Issue: Action happens without warning Fix: Add subtle anticipation cues before significant changes. A button press should show feedback before the result.
Follow Through
Issue: Animation ends abruptly Fix: Let elements settle naturally. Sudden stops feel broken. Add slight overshoot and settle.
Staging
Issue: Important changes happen outside focus Fix: Draw attention to where change occurs. If content moves, guide the eye with motion.
Appeal
Issue: Animation feels arbitrary Fix: Every animation should have clear purpose. If users question "why does this bounce?", remove it.
Quick Fixes
- Make animations skippable - Click/tap should complete or skip
- Reduce duration by 30% - Most animations are too slow
- Add progress indicators - For anything over 400ms
- Animate in user's focus area - Don't move things peripherally
- Remove decorative animations - If it doesn't help, it hurts
Troubleshooting Checklist
- Can users interact during animation?
- Is duration under 400ms for transitions?
- Does animation communicate state change?
- Is the animation skippable if lengthy?
- Does motion guide attention correctly?
- Is there feedback for user input?
- Would removing animation hurt understanding?
- Test with impatient users (click rapidly)
Pattern
// Allow interaction during animation
element.style.pointerEvents = 'auto';
// Make animation skippable
element.addEventListener('click', () => {
element.getAnimations().forEach(a => a.finish());
});
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 69 lines · 18 tokens per session scan A bfa39d6a71d1
ux-friction is a skill published in the GitHub repository dylantarre/animation-principles (81 stars, last pushed 8mo ago), licensed MIT. It adds 18 tokens to every session and 503 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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