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 dhaupin/vant --skill vant-skill-cssgit clone --depth 1 https://github.com/dhaupin/vantWrote 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/dhaupin/vant/vant-skill-css)<a href="https://agentmods.dev/skills/dhaupin/vant/vant-skill-css"><img src="https://agentmods.dev/badge/skills/dhaupin/vant/vant-skill-css/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/dhaupin/vant/vant-skill-css"><img src="https://agentmods.dev/badge/skills/dhaupin/vant/vant-skill-css.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 | $0.00006 | $0.00231 |
| Opus 5.5 | $0.00002 | $0.00092 |
| Sonnet 5.5 | $0.00001 | $0.00046 |
| Haiku 4.5 | $0.00001 | $0.00023 |
Grade A, and why
css 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 1mo 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
CSS
Styling language.
When To Use
- Styling web pages
- Layouts
- Animations
What To Do
1. Syntax
selector {
property: value;
property: value;
}
/* Comment */
2. Properties
| Property | What |
|---|---|
| color | Text color |
| background | Background |
| margin/padding | Spacing |
| display | Layout |
| position | Placement |
3. Selectors
.element /* element */
.class /* class */
#id /* id */
parent child /* descendant */
parent > child /* child */
4. Flexbox/Grid
.container {
display: flex;
justify-content: center;
align-items: center;
}
Role: CSS Developer
Input: Styles
Output: Visuals
Style.
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.
- 1mo ago First seen · 73 lines · 6 tokens per session scan A eeacc99f85c4
css is a skill published in the GitHub repository dhaupin/vant (11 stars, last pushed 2d ago), licensed MIT. It adds 6 tokens to every session and 231 once invoked, about $0.0000 per session on Opus 5.5. 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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