accessibility

accessibility is a skill for Claude Code from MonumentalSystems/Atlas-Agent-Teams. It costs 28 tokens per session (2,283 once invoked), scanned A, original, MIT.

Guidance for making websites and applications usable by people with disabilities, based on WCAG 2.1 accessibility guidelines.

In plain words
What is it for?
Use it to review or implement semantic HTML, ARIA attributes, keyboard navigation, screen-reader support, color contrast, and WCAG compliance.
Why use it?
It helps identify barriers such as missing screen-reader information, poor color contrast, and controls that cannot be used with a keyboard.

Skill for Claude Code

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

Part of the design-ux plugin — 4 skills, 1 command, 5 agents shipped together

Good fit Use it to review or implement semantic HTML, ARIA attributes, keyboard navigation, screen-reader support, color contrast, and WCAG compliance.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/monumentalsystems/atlas-agent-teams/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 MonumentalSystems/Atlas-Agent-Teams --skill accessibility
Clone the repo
git clone --depth 1 https://github.com/MonumentalSystems/Atlas-Agent-Teams

Made for: Claude Code.

Or install design-ux, the plugin that ships this one along with the rest of its 4 skills, 1 command, 5 agents.

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/monumentalsystems/atlas-agent-teams/accessibility/github.svg)](https://agentmods.dev/skills/monumentalsystems/atlas-agent-teams/accessibility)
Your own site
<a href="https://agentmods.dev/skills/monumentalsystems/atlas-agent-teams/accessibility"><img src="https://agentmods.dev/badge/skills/monumentalsystems/atlas-agent-teams/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.

agentmods 80×15 button for accessibility

Your own site · 80×15
<a href="https://agentmods.dev/skills/monumentalsystems/atlas-agent-teams/accessibility"><img src="https://agentmods.dev/badge/skills/monumentalsystems/atlas-agent-teams/accessibility.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,283 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 $0.00028 $0.02283
Opus 5 $0.00014 $0.01141
Sonnet 5 $0.00006 $0.00457
Haiku 4.5 $0.00003 $0.00228

Measured 9d ago against content hash 80c730eb6b3d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, 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 9d 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.

teams/design-ux/skills/accessibility/SKILL.md · 213 lines

How it starts

The opening of the file, as written. The whole thing — 213 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Accessibility

WCAG 2.1 Guidelines and Compliance Levels

WCAG Principles (POUR)

  • Perceivable: Information and UI components must be presentable in ways users can perceive
  • Operable: UI components and navigation must be operable
  • Understandable: Information and operation of UI must be understandable
  • Robust: Content must be robust enough to be interpreted by assistive technologies

Compliance Levels

  • Level A: Minimum level of accessibility
  • Level AA: Standard level, required by many laws and regulations
  • Level AAA: Highest level, rarely required but ideal

WCAG 2.1 Success Criteria

  • 1.1 Text Alternatives: Provide text alternatives for non-text content
  • 1.2 Time-Based Media: Provide alternatives for time-based media
  • 1.3 Adaptable: Create content that can be presented in different ways
  • 1.4 Distinguishable: Make it easier to see and hear content
  • 2.1 Keyboard Accessible: Make all functionality available from a keyboard
  • 2.2 Enough Time: Provide users enough time to read and use content
  • 2.3 Seizures and Physical Reactions: Do not design content that causes seizures
  • 2.4 Navigable: Provide ways to help users navigate and find content
  • 2.5 Input Modalities: Make it easier to use inputs other than keyboard
  • 3.1 Readable: Make text content readable and understandable
  • 3.2 Predictable: Make Web pages appear and operate in predictable ways
  • 3.3 Input Assistance: Help users avoid and correct mistakes
  • 4.1 Compatible: Maximize compatibility with current and future user agents

Screen Reader Compatibility

Screen Reader Basics

  • Popular Screen Readers: NVDA (Windows), JAWS (Windows), VoiceOver (Mac/iOS), TalkBack (Android)
  • Testing: Test with multiple screen readers for comprehensive coverage
  • Semantic HTML: Use proper HTML elements for screen reader compatibility
  • ARIA Attributes: Use ARIA when HTML alone is insufficient
  • Focus Management: Ensure logical focus order for keyboard and screen reader users

Read the full file on GitHub · 213 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. 9d ago First seen · 213 lines · 28 tokens per session scan A 80c730eb6b3d

Subscribe to this mod's changes

accessibility is a skill published in the GitHub repository MonumentalSystems/Atlas-Agent-Teams (21 stars, last pushed 28d ago), licensed MIT. It adds 28 tokens to every session and 2,283 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 2026-08-30.

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