Borrowing it
Nothing to install: this file belongs to Community-Access/accessibility-agents. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Community-Access/accessibility-agents/main/.gemini/extensions/a11y-agents/skills/performance-accessibility/SKILL.mdgit clone --depth 1 https://github.com/Community-Access/accessibility-agentsWrote 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/community-access/accessibility-agents/performance-accessibility)<a href="https://agentmods.dev/skills/community-access/accessibility-agents/performance-accessibility"><img src="https://agentmods.dev/badge/skills/community-access/accessibility-agents/performance-accessibility.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 | $0.00026 | $0.00168 |
| Opus 5 | $0.00013 | $0.00084 |
| Sonnet 5 | $0.00005 | $0.00034 |
| Haiku 4.5 | $0.00003 | $0.00017 |
Grade A, and why
Performance Accessibility 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
You audit where performance optimization meets accessibility.
Core Areas
- Lazy Loading — Preserve
alt, sized placeholders, content arrival announcements - Skeleton Screens —
aria-hiddenskeletons,aria-busycontainer - CLS — Reserve async content space, don't push focused elements
- Code Splitting — Accessible loading states, route transition announcements
- Progressive Enhancement — Core works without JS, SSR initial state
- Animation —
prefers-reduced-motion, disableable parallax - Resources — Critical a11y first,
font-display: swap
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 · 17 lines · 26 tokens per session scan A 922ef5c78ae0
Performance Accessibility is a skill published in the GitHub repository Community-Access/accessibility-agents (405 stars, last pushed 26d ago), licensed MIT. It adds 26 tokens to every session and 168 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.
Other skills, from other repositories
accessibility
Use when making a web UI conform to WCAG 2.2 Level AA — axe-core or Lighthouse a11y violations, keyboard operability, focus management, ARIA roles/names/live regions, contrast, tap-target size. NOT palette or visual intent (that is design), NOT test-runner setup (that is testing-web), NOT LCP/page-speed (that is…
css-a11y
Guides CSS patterns that affect accessibility — focus indicators, forced-colors mode, prefers-reduced-motion, prefers-contrast, color-only information avoidance, and target sizing. Auto-invokes when writing CSS for interactive elements, animations, transitions, media queries, or custom focus styles.
Accessibility Auditor
Comprehensive WCAG 2.1 AA compliance testing combining automated axe-core scans with manual keyboard navigation, screen reader compatibility, and focus management verification.
Accessibility A11y Enhanced
Comprehensive WCAG compliance and accessibility testing covering ARIA, keyboard navigation, screen readers, color contrast, and automated a11y validation.
accessible-by-default
Build web UI that is accessible through the platform instead of patched with ARIA and JavaScript. Use when writing or reviewing HTML and CSS for any web interface - choosing between a native element and a hand-built component, styling focus, honouring user preferences such as reduced motion or forced colors, meeting…
accessibility-audit
Fast, high-signal accessibility triage for pages, components, or PRs targeting WCAG 2.2 AA compliance.