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 xuansenpa1/skillrevise --skill web-interface-guidelinesgit clone --depth 1 https://github.com/xuansenpa1/skillreviseWrote 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/xuansenpa1/skillrevise/web-interface-guidelines)<a href="https://agentmods.dev/skills/xuansenpa1/skillrevise/web-interface-guidelines"><img src="https://agentmods.dev/badge/skills/xuansenpa1/skillrevise/web-interface-guidelines.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 | $0.00045 | $0.00695 |
| Opus 5 | $0.00023 | $0.00347 |
| Sonnet 5 | $0.00009 | $0.00139 |
| Haiku 4.5 | $0.00005 | $0.00069 |
Grade A, and why
web-interface-guidelines 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 4d 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.
This is a copy
100% identical to web-interface-guidelines — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Web Interface Guidelines
Review UI code for compliance with Vercel's web interface standards.
Quick Reference - Visual Stability
| Issue | Rule |
|---|---|
| Images without dimensions | <img> needs explicit width and height (prevents CLS) |
| Font loading flash | Critical fonts: <link rel="preload" as="font"> with font-display: swap |
| Large lists | Virtualize lists >50 items (content-visibility: auto) |
| Layout reads in render | No getBoundingClientRect, offsetHeight in render path |
Full Rules
Images
<img>needs explicitwidthandheight(prevents CLS)- Below-fold images:
loading="lazy" - Above-fold critical images:
priorityorfetchpriority="high"
Performance
- Large lists (>50 items): virtualize (
virtua,content-visibility: auto) - No layout reads in render (
getBoundingClientRect,offsetHeight,offsetWidth,scrollTop) - Batch DOM reads/writes; avoid interleaving
- Add
<link rel="preconnect">for CDN/asset domains - Critical fonts:
<link rel="preload" as="font">withfont-display: swap
Accessibility
- Icon-only buttons need
aria-label - Form controls need
<label>oraria-label - Interactive elements need keyboard handlers (
onKeyDown/onKeyUp) <button>for actions,<a>/<Link>for navigation (not<div onClick>)- Images need
alt(oralt=""if decorative)
Focus States
- Interactive elements need visible focus:
focus-visible:ring-*or equivalent - Never
outline-none/outline: nonewithout focus replacement - Use
:focus-visibleover:focus(avoid focus ring on click)
Animation
- Honor
prefers-reduced-motion(provide reduced variant or disable) - Animate
transform/opacityonly (compositor-friendly) - Never
transition: all—list properties explicitly
Forms
- Inputs need
autocompleteand meaningfulname - Use correct
type(email,tel,url,number) andinputmode - Never block paste (
onPaste+preventDefault) - Labels clickable (
htmlForor wrapping control)
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.
- 4d ago First seen · 77 lines · 45 tokens per session scan A 4ecd4428603a
web-interface-guidelines is a skill published in the GitHub repository xuansenpa1/skillrevise (55 stars, last pushed 2d ago), licensed MIT. It adds 45 tokens to every session and 695 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to web-interface-guidelines, differing in 0 lines, and is treated as a copy.
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