accessibility

accessibility is a skill for Claude Code from MartinOlivero/saas-builder. It costs 115 tokens per session (990 once invoked), scanned A, original, MIT.

A set of rules for building accessible user interfaces, including support for keyboard users, screen readers, and people with low vision. It uses WCAG, a widely used standard for digital accessibility.

In plain words
What is it for?
It is for checking or building keyboard navigation, screen-reader support, ARIA labels, color contrast, focus states, accessible forms, and WCAG compliance.
Why use it?
It helps find barriers that can prevent people from using an interface and guides work toward recognized accessibility requirements.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the saas-builder plugin — 18 skills, 1 hook shipped together

Good fit It is for checking or building keyboard navigation, screen-reader support, ARIA labels…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/martinolivero/saas-builder/accessibility
Install

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.

Any agent
npx skills add MartinOlivero/saas-builder --skill accessibility
Clone the repo
git clone --depth 1 https://github.com/MartinOlivero/saas-builder

Made for: Claude Code.

Or install saas-builder, the plugin that ships this one along with the rest of its 18 skills, 1 hook.

Wrote 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.

agentmods badge for accessibility

README.md
[![agentmods](https://agentmods.dev/badge/skills/martinolivero/saas-builder/accessibility.svg)](https://agentmods.dev/skills/martinolivero/saas-builder/accessibility)
Your own site
<a href="https://agentmods.dev/skills/martinolivero/saas-builder/accessibility"><img src="https://agentmods.dev/badge/skills/martinolivero/saas-builder/accessibility.svg" alt="Measured on agentmods" height="20"></a>
Per session 115 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 990 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00115 $0.00990
Opus 5 $0.00057 $0.00495
Sonnet 5 $0.00023 $0.00198
Haiku 4.5 $0.00012 $0.00099

Measured 6d ago against content hash 03edf40b5467, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

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 6d 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.

skills/accessibility/SKILL.md · 64 lines

How it starts

The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Accessibility

This skill makes interfaces usable by everyone — keyboard-only users, screen-reader users, low-vision users — and meets the legal bar (the EU Accessibility Act and ADA Title II both reference WCAG). Accessibility is not a nice-to-have; it's increasingly a legal requirement and always a larger addressable market.

Analogy: a curb cut was built for wheelchairs, but everyone with a stroller, suitcase, or bike uses it. Accessible UI is the same — built for those who need it, better for everyone.

Dependencies

This skill is stronger when Vercel's web-design-guidelines skill (part of vercel-labs/agent-skills, ~27k⭐) is installed — it ships the ARIA/focus/keyboard checklist. Delegate the checklist to it when present; always pair with the axe-core test step below, which catches runtime violations a static checklist can't. Never block on a missing dependency — the rules below are the embedded fallback.

The target

WCAG 2.2 Level AA — the bar referenced by the EU EAA, ADA Title II, and Section 508. Automated tools catch only ~30-40% of issues, so combine automated tests with manual checks.

Discovery (max 3 questions, only if unknown)

  1. Are you building new components or auditing existing UI?
  2. Any specific complaint (keyboard trap, unreadable contrast, screen reader silent)?
  3. Is there a CI pipeline where an a11y test could run?

Step 1 — Semantic HTML first

Use native elements before ARIA: <button>, <nav>, <main>, <label>, <a>. "No ARIA is better than bad ARIA" — reach for ARIA only when no native element fits. Maintain a logical heading hierarchy (one <h1>, no skipped levels) and add a "skip to content" link.

Step 2 — Keyboard & focus

  • Every interactive element reachable and operable by keyboard alone (Tab / Shift-Tab / Enter / Space / Esc). Test by unplugging the mouse.
  • Never remove focus outlines without a replacement. Style :focus-visible instead of outline: none.
  • No keyboard traps — focus must be able to leave any widget (modals: trap within while open, release on close).

Read the full file on GitHub · 64 lines

Changes

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.

  1. 6d ago First seen · 64 lines · 115 tokens per session scan A 03edf40b5467

Subscribe to this mod's changes

accessibility is a skill published in the GitHub repository MartinOlivero/saas-builder (2 stars, last pushed 19d ago), licensed MIT. It adds 115 tokens to every session and 990 once invoked, about $0.0006 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 2026-08-31.

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