I Built an AI Agent That Runs Accessibility Audits on Every Deploy. Here's What It Catches That Lighthouse Misses.

Last month I pushed a landing page that scored 97 on Lighthouse accessibility. Green across the board. I shipped it, felt good about it, and moved on. Two days later a blind user on Mastodon posted a thread about the page. They couldn't figure out what the primary action was. The "Get Started" button was buried inside a di with an aria-label that said "hero section" -- screen readers announced it as a landmark, not a call to action. Lighthouse didn't care. The heading hierarchy jumped from h1 to h4 because I'd styled them to look right visually.