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 hidobeats/hido-claude-kit --skill web-animationsgit clone --depth 1 https://github.com/hidobeats/hido-claude-kitWrote 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/hidobeats/hido-claude-kit/web-animations)<a href="https://agentmods.dev/skills/hidobeats/hido-claude-kit/web-animations"><img src="https://agentmods.dev/badge/skills/hidobeats/hido-claude-kit/web-animations.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00041 | $0.01055 |
| Opus 5 | $0.00020 | $0.00528 |
| Sonnet 5 | $0.00008 | $0.00211 |
| Haiku 4.5 | $0.00004 | $0.00105 |
Grade A, and why
web-animations 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 8d 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 — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Web Animations
Reference for choosing and implementing website animations. Detailed effect catalogs and code patterns are in references/ — load only what you need.
Technique Selection
Pick the lightest technique that achieves the effect:
CSS keyframes/transitions
↓ not enough control?
IntersectionObserver + CSS classes
↓ need scroll-linked progress?
GSAP + ScrollTrigger
↓ need physics or enter/exit orchestration?
Framer Motion (React) or Web Animations API (vanilla)
↓ need per-pixel control?
Canvas 2D + requestAnimationFrame
↓ need GPU shaders or 3D?
WebGL (Three.js / OGL / raw)
| Technique | Best For | Dependencies | Perf Cost |
|---|---|---|---|
| CSS keyframes | Loops, hovers, simple transitions | None | Lowest |
| CSS transitions + JS class toggle | Scroll reveals, state changes | None | Low |
| IntersectionObserver | Viewport-triggered animations | None | Low |
| CSS Scroll-Driven | Scroll progress, viewport reveals (no JS) | None | Lowest |
| View Transitions API | Page/route transitions, cross-view morphs | None | Low |
| WAAPI (element.animate) | JS-controlled transitions, sequencing | None | Low |
| SVG stroke/morph | Path drawing, icon animations, shape morphing | None or flubber ~5kb | Low |
| GSAP + ScrollTrigger | Scroll-scrubbed, staggered, timeline | gsap ~30kb | Medium |
| Framer Motion / motion | React enter/exit, spring physics, layout | motion ~50kb | Medium |
| Lottie | Pre-made illustration animations, loaders | lottie-web ~50kb | Medium |
| Rive | Interactive state-machine animations | @rive-app ~50kb | Medium |
| Canvas 2D | Particle systems, text distortion, trails | None | Medium-High |
| WebGL (OGL) | Lightweight shaders, iridescence, chrome | ogl ~30kb | Medium-High |
| WebGL (Three.js) | 3D scenes, heavy shader effects | three ~150kb | High |
When NOT to Activate
- Task is backend/API only (no UI)
- User asks for static layout without motion
- Simple CSS hover that Claude already knows
What ships with it
8 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 8d ago First seen · 85 lines · 41 tokens per session scan A 8c536ecaa808
web-animations is a skill published in the GitHub repository hidobeats/hido-claude-kit (2 stars, last pushed 5mo ago), licensed MIT. It adds 41 tokens to every session and 1,055 once invoked, about $0.0002 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 2026-08-31.
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