Vischeck

Vischeck makes an AI agent screenshot its own UI changes and actually look at them before reporting back. Agents are happy to call a layout “good” just by rereading their own code that they never rendered. This package of hook, skill, and CLI makes them take an authenticated screenshot of the local dev server and look at it before declaring victory.

The screenshot CLI handles dev-server auth automatically, and supports dark mode, mobile viewports, element-level captures, and batch screenshots of whole page sets. The hook fires whenever the agent edits a view or template file, so visual verification happens by default.