wcag-audit-patterns

Conduct WCAG 2.2 accessibility audits with automated testing, manual verification, and remediation guidance. Use when auditing websites for accessibility, fixing WCAG violations, or implementing accessible design patterns.

Install with Tessl CLI

npx tessl i github:wshobson/agents --skill wcag-audit-patterns

What are skills?

Overall
score

81%

Review — 83%

Does it follow best practices?

If you maintain this skill, you can automatically optimize it using the tessl CLI to improve its score:

npx tessl skill review --optimize ./path/to/skill

Learn more

Evaluation — 96%

↑ 1.05x

Agent success when using this skill

Validation — 12 / 16 Passed

Validation for skill structure

SKILL.md

Review

Evals

Evaluation results

97%

Medical Appointment Booking Form

Form accessibility remediation

Criteria

Without context

With context

Visible labels

100%

Required field indication

100%

aria-invalid on error fields

100%

aria-describedby links error

100%

role='alert' on errors

100%

Error describes problem

63%

75%

Status uses aria-live polite

100%

No color-only error state

100%

Focus outline present

75%

100%

Text contrast ratio

100%

Format hints provided

56%

89%

Without context: $0.3137 · 1m 26s · 11 turns · 12 in / 5,227 out tokens

With context: $0.6152 · 2m 18s · 22 turns · 317 in / 8,640 out tokens

98%

11%

Product Filter Dropdown for E-Commerce Catalog

Custom widget ARIA and keyboard patterns

Criteria

Without context

With context

Correct ARIA role

100%

aria-expanded state

100%

aria-labelledby or aria-label

100%

tabindex on custom element

100%

Enter and Space activate

100%

Escape closes widget

100%

Arrow keys navigate options

100%

preventDefault on arrows

100%

prefers-reduced-motion

80%

Focus outline not removed

88%

100%

ARIA state updates on interaction

100%

Native HTML preferred

75%

100%

Without context: $0.4121 · 1m 43s · 15 turns · 64 in / 7,135 out tokens

With context: $0.7029 · 2m 42s · 24 turns · 23 in / 10,325 out tokens

92%

-3%

Legacy News Website Accessibility Overhaul

Page structure audit and skip navigation

Criteria

Without context

With context

Skip link present

88%

63%

Skip link class

100%

Main landmark id

83%

67%

HTML lang attribute

100%

Heading hierarchy fixed

100%

ARIA landmarks used

100%

No generic link text

100%

Descriptive link text

100%

axe-core WCAG tags

70%

axe-core package used

100%

Audit report produced

100%

Manual testing noted

100%

No zoom disabled

100%

Without context: $0.7744 · 3m 43s · 25 turns · 26 in / 12,363 out tokens

With context: $1.0570 · 3m 50s · 32 turns · 78 in / 13,815 out tokens

Evaluated: about 6 hours ago
Agent: Claude Code

Table of Contents

Medical Appointment Booking Form Product Filter Dropdown for E-Commerce Catalog Legacy News Website Accessibility Overhaul

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.