setup-accessibility

Accessibility Enforcement

What This Catches

• <img> without alt -- use alt="" for decorative img
• Mouse-only onClick on <div>/<span> -- needs role + tabIndex + onKeyDown/onKeyUp
• Missing ARIA on widget roles -- role="combobox" needs aria-expanded + aria-controls, role="dialog" needs aria-label/aria-labelledby, role="tablist" needs child role="tab"

Escape hatch: // allow: a11y-skip [reason]

No Nested Pressables

Interactive components ONE pattern -- never both:

Pattern A: Container clickable -- no interactive children.

<ListCard onClick={handleSelect}>
  <Avatar src={user.avatar} />
  <Text>{user.name}</Text>
  <ChevronRightIcon /> {/* visual indicator only, not a button */}
</ListCard>

Pattern B: Children interactive -- container not clickable.

<ListCard>
  <Avatar src={user.avatar} />
  <Text>{user.name}</Text>
  <DropdownMenu>
    <DropdownMenuTrigger asChild>
      <Button variant="ghost" size="icon"><MoreVerticalIcon /></Button>
    </DropdownMenuTrigger>
  </DropdownMenu>
</ListCard>

Why: ambiguous click targets, event bubbling bugs, screen readers can't convey interaction model, touch targets overlap on mobile.

Visual Checklist

• Focus rings visible on all interactive elements (min 2px, contrasting color)
• Hover and focus styles match (no mouse-only affordances)
• Color not sole means of conveying info
• Touch targets min 44x44 CSS pixels
• prefers-reduced-motion respected for animations
• forced-colors / high-contrast mode: use currentcolor for SVG fills
• Text resizable to 200% without content loss

Initial setup (install, AXE fixture, hook config): see SETUP.md.