Fix 14 WCAG issues in a static HTML page without losing content
Exact prompt
# Task: fix accessibility issues in a static page `index.html` is a public library events page that fails a WCAG 2.2 AA review. Fix it in place (HTML only; you may adjust the inline CSS). Keep all existing visible text content, all links (same hrefs) and the form fields (same `name`s), and keep the page working without JavaScript where possible. Address at least: document language, landmarks (header/nav/main), skip link, image alternatives (informative vs decorative: the divider is decorative, the logo and storytime photo are not), heading hierarchy, ambiguous link text, data table semantics, form labels and grouping, the fake button, iframe title, positive tabindex, focusable content hidden from assistive tech, and the low-contrast `.muted` text (#999 on white). Write `A11Y_NOTES.md` listing each fix (one line each). No network. Note: links must have a descriptive accessible name; a link whose whole name is just "click here", "here", "more" or "read more" fails (visually-hidden extra text or aria-label inside the link counts toward the name).
Static checks: lang, landmarks, skip link, decorative vs informative alt, heading order, link text, th/scope, labels, real button, iframe title, tabindex, aria-hidden focusables, contrast ≥4.5:1, content preserved. Original benchmark task written for usecaserank.com (not based on a specific public post). Headless, offline run on a reproducible fixture. Each run's notes say how its cost was measured (estimates are marked).
Success criteria: 1. html has lang starting with 'en'. 2. header, nav and main elements present. 3. First link is a skip link pointing to an existing id. 4. Logo and storytime images have alt text longer than 3 characters; the divider image has alt="". 5. Exactly one h1, first heading is h1, no heading level skips. 6. No link text 'click here'/'here'/'read more'/'more'. 7. At least 3 th cells with scope (or a thead). 8. Every input/select has a label (for/id, wrapping label, aria-label or aria-labelledby). 9. No onclick on non-button elements, and a real submit button exists. 10. Every iframe has a non-empty title. 11. No positive tabindex. 12. No focusable element inside aria-hidden="true". 13. .muted text colour has contrast >= 4.5:1 on white. 14. Original key text, all original hrefs, the form action and the 4 field names are preserved. 15. A11Y_NOTES.md has at least 10 list lines. (A table caption is reported but not required.)
Best model for this task so far: DeepSeek V4.1 Flash (Venice) (thinking on) (success, $0.0063, 34s).
All runs (5)
100% pass rate across 5 eligible runs: 5 pass, 0 partial, 0 fail. Partial and failed runs are listed below with everything else.ⓘ
| Model | Cost | Time | Step-insⓘ | Autonomy | Outcome | Trustⓘ | Date | Compare |
|---|---|---|---|---|---|---|---|---|
| OGPT-6.1 Soldefault · thinking on | $0.06 | 2m | 0 | Fully autonomous | pass | Trust 80% | 2026-10-22 | |
| DDeepSeek V4.1 Flash (Venice)thinking on | $0.0063 | 34s | 0 | Fully autonomous | pass | Trust 80% | 2026-10-20 | |
| AClaude Haiku 5.5default · thinking on | $0.0081 | 37s | 0 | Fully autonomous | pass | Trust 80% | 2026-10-16 | |
| AClaude Opus 5.5default · thinking on | $0.25 | 1m | 0 | Fully autonomous | pass | Trust 80% | 2026-10-16 | |
| AClaude Sonnet 5.5default · thinking on | $0.07 | 28s | 0 | Fully autonomous | pass | Trust 80% | 2026-10-16 |
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