accessibility-audit

accessibility-audit is a skill for Claude Code, Codex from telus-labs/stagecraft. It costs 77 tokens per session (1,550 once invoked), scanned A, original, MIT.

An accessibility check for changed user interfaces against WCAG, the widely used guidelines for making websites usable by people with disabilities. It checks affected pages and components after quality testing.

In plain words
What is it for?
Use it after adding or changing pages, forms, inputs, dialogs, navigation, or other interactive UI. It produces an accessibility report and a pass-or-fail pipeline check.
Why use it?
It helps catch barriers for keyboard users, screen-reader users, and others before a UI change is released. It also records when an accessibility check was skipped because the change has no relevant user interface.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it after adding or changing pages, forms, inputs, dialogs, navigation, or…

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Install with agentmods
npx agentmods add skills/telus-labs/stagecraft/accessibility-audit
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 telus-labs/stagecraft --skill accessibility-audit
Clone the repo
git clone --depth 1 https://github.com/telus-labs/stagecraft

Made for: Claude Code, Codex.

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-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/telus-labs/stagecraft/accessibility-audit.svg)](https://agentmods.dev/skills/telus-labs/stagecraft/accessibility-audit)
Your own site
<a href="https://agentmods.dev/skills/telus-labs/stagecraft/accessibility-audit"><img src="https://agentmods.dev/badge/skills/telus-labs/stagecraft/accessibility-audit.svg" alt="Measured on agentmods" height="20"></a>
Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,550 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 $0.00077 $0.01550
Opus 5 $0.00039 $0.00775
Sonnet 5 $0.00015 $0.00310
Haiku 4.5 $0.00008 $0.00155

Measured 6d ago against content hash bad487587cdb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

accessibility-audit 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-audit/SKILL.md · 149 lines

How it starts

The opening of the file, as written. The whole thing — 149 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Accessibility audit

Use this skill at Stage 6b (after QA) when the change touched UI. Audits the affected pages/components for WCAG violations using axe-core, pa11y, or Lighthouse. Produces pipeline/accessibility-report.md and writes pipeline/gates/stage-06b.json.

When to use

  • Frontend changes shipped at Stage 4 (new component, modified flow, redesigned page).
  • Updates to forms, inputs, dialogs, navigation, or anything keyboard/screen-reader-relevant.
  • New routes/pages added to the app.

When to skip (with audit_skipped_reason set)

  • Backend-only changes (no UI surface).
  • Doc-only changes.
  • Internal tools with no public/customer surface AND no a11y commitment in the brief.

Procedure

1. Identify what to audit

Read pipeline/brief.md and pipeline/design-spec.md for the scope. Cross-reference with the Stage 4 PR summaries (pipeline/pr-frontend.md) to find:

  • Specific routes / page URLs.
  • Specific React/Vue/Svelte components.
  • Any flows the brief flagged as keyboard-only or screen-reader-critical.

If the change has no UI surface, write the gate with audit_skipped_reason: "<reason>", status: "PASS", all violations zero, and move on.

2. Pick a method

Tool Best for Output shape
axe-core (via @axe-core/cli or programmatic) Most thorough; integrates with Playwright/Cypress JSON with violations grouped by impact
pa11y Quick CLI sweep of URLs HTML/JSON report per page
Lighthouse (a11y audit) Holistic page score (covers perf + a11y) JSON with categories.accessibility.audits
Manual (screen reader walkthrough) Custom interactions Playwright/cypress-axe miss Notes in the report

In order of recommendation: axe-core programmatic (deepest) → Lighthouse CI (CI-friendly) → pa11y (simplest standalone) → manual (only when automated tools can't reach the flow).

3. Run the audit

axe-core via @axe-core/cli:

npx @axe-core/cli https://localhost:3000/account/notifications \
  --tags wcag2a,wcag2aa --save axe-report.json

Read the full file on GitHub · 149 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 · 149 lines · 77 tokens per session scan A bad487587cdb

Subscribe to this mod's changes

accessibility-audit is a skill published in the GitHub repository telus-labs/stagecraft (6 stars, last pushed today), licensed MIT. It adds 77 tokens to every session and 1,550 once invoked, about $0.0004 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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