Build a browser photo editor and let the agent test it
A poster had Claude Code build a Photoshop-style editor and test each build in the ego lite browser; he says it caught and fixed an eraser bug wiping the whole image.
Done with Claude Code
What they did
The poster asked Claude Code to build a Photoshop-like image editor in the browser. Using a skill for the ego lite browser, the agent tested each build like a user. It clicked every tool, dragged sliders, typed text, used undo and redo, and exported a picture file.
How it went
He says the agent noticed the eraser was wiping the whole image and fixed it in the next build.
Worth knowing
The post is partly a promotion for the ego lite browser, which now also runs on Windows.
Try it yourself with Claude Code
Build a simple image editor that runs in the browser with [tools you want, e.g. brush, eraser, text, sliders, undo, export]. After each build, open it in a browser you control and test it like a real user: click every tool, drag sliders, type text, undo and redo, and export a picture. List any bugs you find, fix them, and repeat. Show me a summary of each round.Swap the highlighted [parts] for your own details.
Source: X · @0xMovez · Oct 19, 2026
Written with AI assistance from the original post and checked against our editorial guidelines. Results are as reported by the source, not independently verified. Spotted a mistake? Tell us.