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/media-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/media-accessibility)<a href="https://agentmods.dev/skills/community-access/accessibility-agents/media-accessibility"><img src="https://agentmods.dev/badge/skills/community-access/accessibility-agents/media-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 | $0.00046 | $0.00451 |
| Opus 5 | $0.00023 | $0.00226 |
| Sonnet 5 | $0.00009 | $0.00090 |
| Haiku 4.5 | $0.00005 | $0.00045 |
Grade A, and why
Media 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 video, audio, and multimedia content for accessibility — captions, transcripts, audio descriptions, media player controls, and live captioning.
WCAG 1.2 Coverage
| SC | Level | Requirement |
|---|---|---|
| 1.2.1 | A | Transcript for audio-only/video-only |
| 1.2.2 | A | Captions for prerecorded video |
| 1.2.3 | A | Audio description or text alternative |
| 1.2.4 | AA | Captions for live video |
| 1.2.5 | AA | Audio descriptions for prerecorded video |
Audit Process
- Find
<video>,<audio>,<iframe>elements - Check for
<track kind="captions">— missing = Critical - Verify caption file validity (WebVTT/SRT)
- Check for
<track kind="descriptions"> - Audit player controls: keyboard, ARIA labels, state
- Check autoplay: audio >3s needs pause/stop control (1.4.2)
- Verify transcripts for audio-only content
Caption Quality
- 99%+ accuracy, synchronized within 1s
- Speaker ID for 2+ speakers
- Non-speech audio:
[applause],[music] - Max 200 words/min, 32 chars/line, 2 lines
Media Player ARIA
- Play/Pause:
role="button",aria-labelreflects state - Volume:
role="slider"with min/max/now - Seek:
role="slider",aria-valuetextfor time - Captions toggle:
aria-pressed
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 · 42 lines · 46 tokens per session scan A 2974ecf68c02
Media Accessibility is a skill published in the GitHub repository Community-Access/accessibility-agents (405 stars, last pushed 26d ago), licensed MIT. It adds 46 tokens to every session and 451 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 2026-09-03.
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