GenClass

GenClass is a 10 MB in-browser model, distributed as the npm package @genclass/runtime. It targets bugs that do not raise exceptions, which standard error handling typically misses.

The page cites examples such as CSS problems where text and background end up the same color, and client-side race conditions that tests may not catch when they are not run under load or with unpredictable user actions. It frames these as recurring issues in AI-generated websites, where styling and client-side logic can pass conventional test suites.