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 mgifford/accessibility-skills --skill criticgit clone --depth 1 https://github.com/mgifford/accessibility-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/mgifford/accessibility-skills/critic)<a href="https://agentmods.dev/skills/mgifford/accessibility-skills/critic"><img src="https://agentmods.dev/badge/skills/mgifford/accessibility-skills/critic/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/mgifford/accessibility-skills/critic"><img src="https://agentmods.dev/badge/skills/mgifford/accessibility-skills/critic.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 | $0.00000 | $0.03955 |
| Opus 5 | $0.00000 | $0.01978 |
| Sonnet 5 | $0.00000 | $0.00791 |
| Haiku 4.5 | $0.00000 | $0.00396 |
Grade A, and why
critic 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 10d 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.
The source is not reproduced here
Licensed AGPL-3.0
The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 10d ago First seen · 549 lines · 0 tokens per session scan A 7181e6f008c4
critic is a skill published in the GitHub repository mgifford/accessibility-skills (44 stars, last pushed 1mo ago), licensed AGPL-3.0. It costs nothing until one of its globs matches a file; then it loads 3,955 tokens. 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.
Other skills, from other repositories
a11y-review
Static analysis pass over JSX/HTML/CSS source for WCAG 2.2 AA failure patterns. Does NOT run axe-core, does NOT measure real contrast, does NOT test runtime behavior — pair with a11y-testing for that. Use when the user asks for an accessibility review, a11y check, WCAG review, "is this accessible?", "does my site meet…
ui-ux-laws
Priority-ordered rulebook of core UX/UI laws, cognitive-psychology principles, Nielsen's usability heuristics, and accessibility requirements that Claude must actively apply (not just cite) whenever it designs, builds, redesigns, reviews, or critiques any user interface — websites, web/mobile apps, dashboards, forms…
wes-bos-sick-picks
Research-first workflow for building frontend UI components (any framework), in the spirit of Wes Bos. Use when designing or implementing a UI component, layout, interaction, or CSS/HTML feature and you want a modern, accessible, best-practice solution rather than a first guess. Researches pitfalls and platform…
design-board
Full UX/UI design review panel — 6 opinionated design leaders (Jony Ive, Amir Salihefendic, Jesse Patel, Joe Gebbia, Katie Dill, Notion Designer) critique your design with brutal honesty, deliberate together, score on 5 principles, and implement fixes. Works with .pen files, HTML/CSS/JS projects, and Figma.
amir-salihefendic
Amir Salihefendic (Todoist/Doist) design critique — calm technology, daily-use sustainability, anti-bloat. Brutally honest UX/UI feedback focused on productivity and the day-500 experience. Scores on 5 principles and implements fixes.
jesse-patel
Jesse Patel (WorkFlowy) design critique — radical simplicity, one interaction pattern, keyboard-first. Brutally honest UX/UI feedback focused on reducing concept count and interaction complexity. Scores on 5 principles and implements fixes.