Celesto AI
Built at Zero to Agent: Vercel x Deepmind Hackathon London · Mar 21, 2026 · London, UK
Slop Fixer is an AI reviewer that hunts down visual 'slop' and UI bugs in React PRs and suggests changes to fix them. When you open a pull request, the bot spins up your React application, renders your configured routes across mobile and desktop viewports, and captures visual snapshots. The bot posts detailed comment with issues and a prompt to fix the bugs along with the screenshots. See it live here - https://github.com/aniketmaurya/customer-support-agent/pull/2
