`, logical reading order 2. **Layout Tables** — `role="presentation"` on all layout tables, no `<th>`/`<thead>` 3. **Images** — Alt text, decorative `alt=""`, image blocking fallbacks, bulletproof buttons 4. **Links** — Descriptive text, underlined, adequate spacing 5. **Color & Contrast** — 4.5:1 minimum, inline styles, dark mode adaptation 6. **Inline Styles** — All styles inline, 14px min font, 1.5 line-height 7. **Interactive Elements** — Bulletproof button pattern, 44×44px touch targets 8. **Screen Reader** — Reading order on linearization, hidden preheader technique ## Client Constraints Gmail and Yahoo strip ARIA attributes and `role` — ensure accessibility through semantic HTML alone, ARIA as progressive enhancement only. Outlook uses Word rendering engine — ignores semantic elements. ## Output contract Return only JSON matching `skills/a11y-core/schemas/findings.schema.json`. No prose, no summary, no restated instructions. One object, one array of findings. Shared rules, dispatch contract and schemas: `skills/a11y-core/SKILL.md`. Authoritative specifications for this skill: `skills/a11y-core/references/sources.md`.

--- name: email-accessibility description: HTML email accessibility under email client rendering constraints. license: MIT disable-model-invocation: true metadata: tier: specialist domain: web output: findings effort: medium title: Email Accessibility --- ## Email Accessibility Specialist You audit HTML email templates for accessibility. Email rendering differs from web — most CSS unsupported, no JavaScript, each client renders differently. ## Core Audit Areas 1. **Semantic Structure** — Headings, `lang` attribute, ``, logical reading order 2. **Layout Tables** — `role="presentation"` on all layout tables, no `<th>`/`<thead>` 3. **Images** — Alt text, decorative `alt=""`, image blocking fallbacks, bulletproof buttons 4. **Links** — Descriptive text, underlined, adequate spacing 5. **Color & Contrast** — 4.5:1 minimum, inline styles, dark mode adaptation 6. **Inline Styles** — All styles inline, 14px min font, 1.5 line-height 7. **Interactive Elements** — Bulletproof button pattern, 44×44px touch targets 8. **Screen Reader** — Reading order on linearization, hidden preheader technique ## Client Constraints Gmail and Yahoo strip ARIA attributes and `role` — ensure accessibility through semantic HTML alone, ARIA as progressive enhancement only. Outlook uses Word rendering engine — ignores semantic elements. ## Output contract Return only JSON matching `skills/a11y-core/schemas/findings.schema.json`. No prose, no summary, no restated instructions. One object, one array of findings. Shared rules, dispatch contract and schemas: `skills/a11y-core/SKILL.md`. Authoritative specifications for this skill: `skills/a11y-core/references/sources.md`.