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 krzysztofsurdy/code-virtuoso --skill accessibilitygit clone --depth 1 https://github.com/krzysztofsurdy/code-virtuosoWrote 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/krzysztofsurdy/code-virtuoso/accessibility)<a href="https://agentmods.dev/skills/krzysztofsurdy/code-virtuoso/accessibility"><img src="https://agentmods.dev/badge/skills/krzysztofsurdy/code-virtuoso/accessibility/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/krzysztofsurdy/code-virtuoso/accessibility"><img src="https://agentmods.dev/badge/skills/krzysztofsurdy/code-virtuoso/accessibility.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 | $0.00049 | $0.01941 |
| Opus 5.5 | $0.00020 | $0.00776 |
| Sonnet 5.5 | $0.00010 | $0.00388 |
| Haiku 4.5 | $0.00005 | $0.00194 |
Grade A, and why
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 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.
How it starts
The opening of the file, as written. The whole thing — 163 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Web Accessibility
Accessibility is a quality attribute, not a feature to bolt on at the end. Consider it from the first line of markup. Accessible interfaces let people with visual, motor, auditory, or cognitive disabilities perceive, navigate, and use your application. They also help keyboard power users, people on slow connections, users with temporary injuries, and anyone in a constrained environment.
Why accessibility matters
| Dimension | Impact |
|---|---|
| Legal | Legislation in most jurisdictions (ADA, EAA, Section 508, EN 301 549) requires digital products to be accessible. Non-compliance carries litigation risk and financial penalties. |
| Ethical | Roughly 16% of the global population lives with some form of disability. Excluding them from digital services is a choice, not an inevitability. |
| Business | Accessible products reach a wider audience, improve SEO (structured content helps crawlers), reduce support costs, and correlate with higher overall usability scores. |
| Technical quality | Accessibility constraints force clean markup, proper semantics, and separation of concerns, which improves maintainability. |
WCAG principles: POUR
The Web Content Accessibility Guidelines organize all success criteria under four principles. Every accessibility requirement maps to at least one.
| Principle | Question it answers | Examples |
|---|---|---|
| Perceivable | Can users sense the content? | Text alternatives for images, captions for video, sufficient color contrast, resizable text |
| Operable | Can users interact with every control? | Keyboard operability, enough time to complete tasks, no seizure-triggering animations, clear navigation |
| Understandable | Can users comprehend the content and UI behavior? | Readable language, predictable navigation, input assistance and error messages |
| Robust | Does it work across assistive technologies? | Valid markup, proper use of ARIA, compatibility with screen readers and other tools |
What ships with it
3 files 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 Changed · -56 tokens per session ab4f40bb2aff
- 1mo ago First seen · 163 lines · 105 tokens per session scan A 3e5e734516d1
accessibility is a skill published in the GitHub repository krzysztofsurdy/code-virtuoso (36 stars, last pushed 2d ago), licensed MIT. It adds 49 tokens to every session and 1,941 once invoked, about $0.0002 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.
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