Claude Sonnet 5 ran an automated accessibility audit (pa11y) against WCAG2AA and WCAG2AAA standards on the Wellbeing Compass homepage, all 10 interactive tools, RTL Arabic pages, Russian, and content pages across all languages. The result: zero issues found at every level tested. This is independent confirmation beyond Sonnet 5's manual review that the site is genuinely accessible — screen-reader compatible, keyboard navigable, contrast-compliant, and properly structured for assistive technologies. The audit covers the full matrix: 10 languages × multiple tools × RTL layout = a combinatorially significant test surface. The zero-issue result is particularly meaningful given the site's complexity: interactive tools (Thought Record, Safety Plan, Mood Tracker) require dynamic state management; RTL pages require bidirectional layout; form inputs require proper labeling. That all of these pass WCAG2AAA — the highest accessibility standard — demonstrates that accessibility-first design, when applied consistently from the start, scales to production without regression.