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I don't know what to say, i just want to say... E

Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

I don't know what to say, i just want to say... E — Demo video

BREAK IT is a stress-testing workbench for static HTML/CSS components. It helps developers discover layout failures caused by long names, unbroken identifiers, translated text and narrow screens. Muse Spark 1.3 generates adversarial scenarios. Playwright Chromium renders each case and measures overflow, clipped text, button visibility and control separation. Muse Spark then proposes candidate CSS using the source, measured failures and actual screenshots. The candidate is tested against the identical locked scenario and assertion pack. The recorded checkout demo improved from 2/9 to 9/9 passing scenarios. These are intentionally fragile examples, and passing applies only to the declared layout checks on the executed cases. Built during the hackathon: text-slot instrumentation, Meta integration, geometric assertions, locked replay, candidate provenance and portable proof export. The ZIP includes code, cases, screenshots, model receipts and a standalone Chromium runner. Public recorded proof: https://break-it-osmar-b946ca82c398.herokuapp.com/review

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