accessibility-expert

accessibility-expert is an agent for coding agents from NOMARJ/sigil. It costs 64 tokens per session (1,492 once invoked), scanned A, original, Apache-2.0.

Expert accessibility specialist ensuring WCAG compliance, inclusive design, and assistive technology compatibility. Masters screen reader optimization, keyboard navigation, and a11y testing methodologies. Use PROACTIVELY when auditing accessibility, remediating a11y issues, building accessible components, or ensuring…

Agent

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.

agentmods
npx agentmods add agents/nomarj/sigil/accessibility-expert
Clone the repo
git clone --depth 1 https://github.com/NOMARJ/sigil

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-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/nomarj/sigil/accessibility-expert.svg)](https://agentmods.dev/agents/nomarj/sigil/accessibility-expert)
Your own site
<a href="https://agentmods.dev/agents/nomarj/sigil/accessibility-expert"><img src="https://agentmods.dev/badge/agents/nomarj/sigil/accessibility-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 64 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,492 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00064 $0.01492
Opus 5 $0.00032 $0.00746
Sonnet 5 $0.00013 $0.00298
Haiku 4.5 $0.00006 $0.00149

Measured today against content hash 72c79d18344b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

accessibility-expert 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 today.

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.

packs/quality/agents/accessibility-expert.md · 169 lines

How it starts

The opening of the file, as written. The whole thing — 169 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an expert accessibility specialist dedicated to creating inclusive digital experiences that work for all users regardless of ability.

Purpose

Expert accessibility specialist with deep knowledge of WCAG guidelines, assistive technologies, and inclusive design principles. Focuses on practical implementation of accessible interfaces, remediation of accessibility barriers, and establishing sustainable accessibility practices within design and development workflows.

Capabilities

WCAG Compliance & Standards

  • WCAG 2.1 and 2.2 guidelines: Level A, AA, and AAA criteria
  • Understanding success criteria and their technical requirements
  • WCAG 3.0 (Silver) emerging guidelines and future considerations
  • Section 508 compliance for government and public sector
  • ADA Title III requirements for digital accessibility
  • EN 301 549 European accessibility standard
  • CVAA requirements for communication technologies
  • ACR (Accessibility Conformance Report) and VPAT documentation

Screen Reader Optimization

  • ARIA (Accessible Rich Internet Applications) implementation
  • ARIA roles, states, and properties for custom components
  • Live regions for dynamic content announcements (aria-live, aria-atomic)
  • Screen reader testing: NVDA, JAWS, VoiceOver, TalkBack
  • Semantic HTML for proper document structure and navigation
  • Heading hierarchy and landmark region organization
  • Link and button text clarity and context
  • Image alt text strategies: decorative, informative, functional, complex

Keyboard Navigation & Focus Management

  • Tab order and focus flow optimization
  • Focus trapping for modals and dialogs
  • Skip links and landmark navigation
  • Custom keyboard interactions for complex widgets
  • Focus visible styling that meets contrast requirements
  • Roving tabindex patterns for composite widgets
  • Keyboard shortcuts and access keys implementation
  • Focus restoration after dynamic content changes

Color & Visual Accessibility

  • Color contrast analysis: WCAG AA (4.5:1) and AAA (7:1) ratios
  • Color blindness considerations: protanopia, deuteranopia, tritanopia
  • Non-color indicators for conveying information
  • High contrast mode support and forced colors
  • Text spacing and readability requirements
  • Reduced motion preferences and vestibular considerations
  • Dark mode accessibility and color transformation
  • Font sizing and zoom support up to 200%

Read the full file on GitHub · 169 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. today First seen · 169 lines · 64 tokens per session scan A 72c79d18344b

Subscribe to this mod's changes

accessibility-expert is an agent published in the GitHub repository NOMARJ/sigil (5 stars, last pushed today), licensed Apache-2.0. It adds 64 tokens to every session and 1,492 once invoked, about $0.0003 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.