Find agent skills by outcome

'categories:accessibility': ['error'

{ minScore: ${lighthouse_score:90} / 100 }]

+-- Property: What relationship? (aria-labelledby

aria-describedby)

+-- State: What condition? (aria-expanded

aria-checked)

[ ] Arrow keys navigate within widgets (tabs

menus

+-- Role: What IS this element? (role=dialog

role=tab)

| +-- YES: Use HTML (

Tools: WebAIM Contrast Checker

browser DevTools

| Critical | Blocks access entirely | No keyboard focus

empty buttons

| Minor | Inconvenience | Redundant alt text

minor heading order issues | Backlog |

| +-- Run automated scan first (axe-core

Lighthouse)

Accessibility Testing Superpower

| Moderate | Difficult but usable | Inconsistent navigation

unclear error messages | Next release |

| Serious | Major barriers | Poor contrast

missing form labels

axe-core: 0 critical violations

0 serious violations

- Best practice

not requirement

where L1 = lighter luminance

L2 = darker luminance

4. Test tables (T key

arrow keys within table)

5. Test forms (F key

complete form submission)

1. Navigate entire page with Tab key

listening to announcements

Radio: [label]

radio button

Checkbox: [label]

checkbox

Combobox: [label]

combobox

[ ] Arrow keys navigate within components (tabs

menus

Link: [text]

link