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 sanky369/vibe-building-skills --skill accessibility-excellencegit clone --depth 1 https://github.com/sanky369/vibe-building-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/sanky369/vibe-building-skills/accessibility-excellence)<a href="https://agentmods.dev/skills/sanky369/vibe-building-skills/accessibility-excellence"><img src="https://agentmods.dev/badge/skills/sanky369/vibe-building-skills/accessibility-excellence/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/sanky369/vibe-building-skills/accessibility-excellence"><img src="https://agentmods.dev/badge/skills/sanky369/vibe-building-skills/accessibility-excellence.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 | $0.00127 | $0.02225 |
| Opus 5.5 | $0.00051 | $0.00890 |
| Sonnet 5.5 | $0.00025 | $0.00445 |
| Haiku 4.5 | $0.00013 | $0.00222 |
Grade A, and why
accessibility-excellence 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 2mo 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 — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Accessibility Excellence
Make the product usable by everyone — keyboard-only users, screen-reader users, low-vision users — by auditing real code against WCAG checkpoints and fixing the failures in priority order. The prime directive: semantic HTML first; ARIA only fills gaps native elements can't. Most accessibility bugs are the wrong element doing the right job. Deliver a prioritized audit plus implemented fixes — never a compliance lecture.
When to use / when not to
Use for: accessibility audits, WCAG conformance work, keyboard/focus behavior, ARIA and screen-reader support, contrast failures, accessible forms/modals/menus, alt text and captions.
Hand off instead when the real need is:
- Designing the color palette itself (accessible-by-construction tokens) →
skills/frontend-design/color-system - Reduced-motion and animation safety in depth →
skills/frontend-design/interaction-physics(this skill audits it; that one implements the motion layer) - Error-message UX beyond ARIA wiring →
skills/frontend-design/error-handling-recovery - Restructuring messy components before making them accessible →
skills/frontend-design/component-architecture
Step 0 — Inspect the codebase, then ask only what's left
- Measure current ARIA/semantics usage: grep for
aria-,role=,alt=,tabIndex,<main,<nav,<button,onClickondiv/span,outline: none,label/htmlFor. The ratio of clickable divs to real buttons is a fast health signal. - Inventory the interactive surface: forms, modals/dialogs, menus/dropdowns, tabs, tooltips, custom widgets (drag-drop, sliders, comboboxes) — these carry most keyboard/ARIA risk.
- Check heading structure (one
h1, no skipped levels), landmark usage,<html lang>, skip link, image alt coverage, video captions. - If a runnable environment exists, run an automated scan (axe-core / Lighthouse a11y) for a baseline — but treat it as ~a third to half of real issues, never the whole audit.
- Note the component stack: headless a11y libraries already present (Radix, React Aria, Headless UI, native
<dialog>) mean fix-by-adoption beats hand-rolling.
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.
- 2mo ago First seen · 118 lines · 127 tokens per session scan A 35caa02540da
accessibility-excellence is a skill published in the GitHub repository sanky369/vibe-building-skills (31 stars, last pushed 3mo ago), licensed MIT. It adds 127 tokens to every session and 2,225 once invoked, about $0.0005 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 2026-08-30.
accessibility-excellence compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| accessibility-excellencesanky369/vibe-building-skills | Skill | 31 | 3mo ago | MIT | A | 127 | Claude Code, Codex |
| ads-youtubeAgriciDaniel/claude-ads | Skill | 11k | 5d ago | MIT | A | 84 | Claude Code |
| ads-launchAgriciDaniel/claude-ads | Skill | 11k | 5d ago | MIT | A | 45 | Claude Code |
| happiness-skillkangarooking/cangjie-skill | Skill | 12k | 1mo ago | MIT | A | 136 | Claude Code, Codex |
| setup-matt-pocock-skillsdevcxl/mattpocock-skills-zh | Skill | 530 | 3d ago | MIT | A | 43 | Claude Code, Codex |
| aiwg-regenerate-copilotjmagly/aiwg | Skill | 229 | yesterday | MIT | A | 25 | Claude Code, Codex |
| steward-prep-deliveryjmagly/aiwg | Skill | 229 | yesterday | MIT | A | 32 | Claude Code, Codex |