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 agentmods add skills/v0idos/performance-deity/uinpx skills add v0idOS/performance-deity --skill uigit clone --depth 1 https://github.com/v0idOS/performance-deityWrote 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/v0idos/performance-deity/ui)<a href="https://agentmods.dev/skills/v0idos/performance-deity/ui"><img src="https://agentmods.dev/badge/skills/v0idos/performance-deity/ui.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 | $0.00036 | $0.00375 |
| Opus 5 | $0.00018 | $0.00187 |
| Sonnet 5 | $0.00007 | $0.00075 |
| Haiku 4.5 | $0.00004 | $0.00038 |
Grade A, and why
ui 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 3d 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
Execute all three phases in order.
Phase 1 — Render Audit
React:
- Find components re-rendering when no props changed → wrap with
React.memo. - Find inline function or object literals in JSX props (new reference on every render) → extract with
useCallbackoruseMemo. - Find Context providers causing full subtree re-renders → split into separate contexts by update frequency.
Vanilla JS / Vue:
- Find DOM reads (
offsetHeight,getBoundingClientRect,scrollTop) inside loops. These force synchronous layout. Batch all reads before any writes.
Phase 2 — GPU Acceleration
Find animations driven by:
- JavaScript timers changing
top,left, ormargin - CSS transitions on
width,height,margin, orpadding
Rewrite to use:
transform: translate3d(x, y, 0)— handled by the GPU compositor, triggers zero reflow.opacity— also compositor-only.will-change: transformon elements that animate on a known trigger.
Phase 3 — Virtualization
If a component renders more than 50 list items, replace it with a virtualized list:
- React:
react-window(FixedSizeList/VariableSizeList) or@tanstack/react-virtual. - Vanilla / Vue:
IntersectionObserverto mount items only when they enter the viewport.
Only visible DOM nodes exist in the document. All others are unmounted.
Target: 60 FPS measured in DevTools Performance panel with zero dropped frames during scroll.
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.
- 3d ago First seen · 37 lines · 36 tokens per session scan A 4c225f6d7285
ui is a skill published in the GitHub repository v0idOS/performance-deity (2 stars, last pushed 4mo ago), licensed MIT. It adds 36 tokens to every session and 375 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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capcut-edit
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aceternity-ui
100+ animated React components (Aceternity UI) for Next.js with Tailwind. Use for hero sections, parallax, 3D effects, or encountering animation, shadcn CLI integration errors.
video-perception
Use when the user mentions a video file (.mp4, .mov, .avi, .mkv, .webm), a YouTube URL, asks to watch/analyze/review a video, or references video content in conversation.