testing-coach

testing-coach is a skill for Claude Code, Codex from Community-Access/accessibility-agents. It costs 19 tokens per session (1,417 once invoked), scanned A, original, MIT.

A coaching guide for testing web accessibility with screen readers, keyboards, automated scanners, browser tools, and test frameworks. It explains how to check whether an interface works for people with disabilities.

In plain words
What is it for?
Use it to plan manual accessibility checks, run axe-core scans, interpret violations, and add accessibility tests to Playwright, Cypress, Jest, or CI.
Why use it?
It fills the gap between code that appears correct and an interface that works in real use, especially with assistive technology.

Skill for Claude CodeCodex

Written for Claude Code and Codex: disable-model-invocation in frontmatter, but also agents/openai.yaml present.

Part of the accessibility-agents plugin — 108 skills, 6 hooks shipped together

Good fit Use it to plan manual accessibility checks, run axe-core scans, interpret violations, and add accessibility tests to Playwright, Cypress, Jest, or CI.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/community-access/accessibility-agents/testing-coach
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 Community-Access/accessibility-agents --skill testing-coach
Clone the repo
git clone --depth 1 https://github.com/Community-Access/accessibility-agents

Made for: Claude Code, Codex.

Or install accessibility-agents, the plugin that ships this one along with the rest of its 108 skills, 6 hooks.

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 testing-coach

README.md
[![agentmods](https://agentmods.dev/badge/skills/community-access/accessibility-agents/testing-coach/github.svg)](https://agentmods.dev/skills/community-access/accessibility-agents/testing-coach)
Your own site
<a href="https://agentmods.dev/skills/community-access/accessibility-agents/testing-coach"><img src="https://agentmods.dev/badge/skills/community-access/accessibility-agents/testing-coach/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 testing-coach

Your own site · 80×15
<a href="https://agentmods.dev/skills/community-access/accessibility-agents/testing-coach"><img src="https://agentmods.dev/badge/skills/community-access/accessibility-agents/testing-coach.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,417 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 6 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 26
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 363
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 366
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 369
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 433
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 430
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
How audits are shown
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 $0.00019 $0.01417
Opus 5.5 $0.00008 $0.00567
Sonnet 5.5 $0.00004 $0.00283
Haiku 4.5 $0.00002 $0.00142

Measured 28d ago against content hash a3cb51a9ec70, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

testing-coach 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 28d 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/testing-coach/SKILL.md · 157 lines

How it starts

The opening of the file, as written. The whole thing — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Testing Coach

You are the accessibility testing coach. You do not write product code. You teach developers how to verify that their code actually works for people with disabilities. There is a massive gap between "the code looks right" and "it actually works in a screen reader." You bridge that gap.

Your Scope

You own everything related to accessibility testing methodology:

  • Screen reader testing (NVDA, VoiceOver, JAWS, Narrator, TalkBack)
  • Keyboard-only testing workflows
  • Automated testing tools (axe-core, Pa11y, Lighthouse, WAVE)
  • Browser DevTools accessibility features
  • Testing frameworks integration (Playwright, Cypress, Jest)
  • Accessibility test plans and checklists
  • Manual testing procedures
  • CI/CD accessibility testing pipelines
  • Common testing mistakes and blind spots

axe-core Integration

You can run axe-core scans directly using the terminal. When the user has a running dev server:

  1. Ask the user for their dev server URL (e.g., http://localhost:3000)
  2. Run: npx @axe-core/cli <url> --tags wcag2a,wcag2aa,wcag21a,wcag21aa
  3. Interpret the results: explain what each violation means in plain language
  4. Map violations to the appropriate specialist agent for fixes (contrast issues -> contrast-master, missing labels -> forms-specialist, etc.)
  5. Remind the user that automated scanning catches ~30% of issues - screen reader and keyboard testing are still required

If @axe-core/cli is not installed, tell the user to run: npm install -g @axe-core/cli

You can also help the user set up axe-core in their test framework (Playwright, Cypress, Jest) for ongoing automated checks in CI.

You Do NOT

  • Write product feature code (that's the other specialists' job)
  • Replace manual testing with automation (automation catches ~30% of issues)
  • Guarantee compliance (testing reveals issues, it doesn't prove absence)

Keyboard Testing

This does NOT require a screen reader. Test keyboard access independently.

The 5-Minute Keyboard Test

Read the full file on GitHub · 157 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 28d ago Changed · -412 lines · -57 tokens per session a3cb51a9ec70
  2. 1mo ago First seen · 569 lines · 76 tokens per session scan A b83b2149ae6b

Subscribe to this mod's changes

testing-coach is a skill published in the GitHub repository Community-Access/accessibility-agents (428 stars, last pushed 28d ago), licensed MIT. It adds 19 tokens to every session and 1,417 once invoked, about $0.0001 per session on Opus 5.5. 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.

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