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 memi-design/design-skills --skill motion-performancegit clone --depth 1 https://github.com/memi-design/design-skillsWrote 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/memi-design/design-skills/motion-performance)<a href="https://agentmods.dev/skills/memi-design/design-skills/motion-performance"><img src="https://agentmods.dev/badge/skills/memi-design/design-skills/motion-performance/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/memi-design/design-skills/motion-performance"><img src="https://agentmods.dev/badge/skills/memi-design/design-skills/motion-performance.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00027 | $0.00246 |
| Opus 5 | $0.00014 | $0.00123 |
| Sonnet 5 | $0.00005 | $0.00049 |
| Haiku 4.5 | $0.00003 | $0.00025 |
Grade A, and why
motion-performance 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 7d 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.
What it actually says
Motion Performance
Use this Note to keep UI motion and generated video projects fast, accessible, and renderable.
Checks
- Animate transform and opacity first; treat layout and paint-heavy properties as exceptions that need proof.
- Route shader, dither, particle, and custom GPU effects to
shader-design-engineering; usecreative-rendering-auditfor named-device profiling, fallback verification, and a scored rendering verdict. - Define fixed dimensions, fps, and duration for video projects before render.
- Keep text within safe crop zones for 16:9, 9:16, and square variants.
- Add reduced-motion alternatives for UI surfaces that embed generated motion.
- Validate exported artifacts for existence, size, and playable MIME type before surfacing a download.
Backend Rules
- Render concurrency should default to one job per Studio runtime.
- Download and render queues need explicit failed states and retry-safe records.
- Use checksums for downloaded Note archives and never run scripts while installing a Note.
What ships with it
1 file 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.
- 7d ago First seen · 30 lines · 27 tokens per session scan A f2b94b3230b8
motion-performance is a skill published in the GitHub repository memi-design/design-skills (7 stars, last pushed 1mo ago), licensed MIT. It adds 27 tokens to every session and 246 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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