A toolkit by Paul Bakaus (ex-Google, jQuery UI) has been released. It catches typical garbage from AI assistants: purple gradients, nested cards, no contrast, broken hierarchy.
What's inside:
- 23 commands for Claude Code / Cursor / Gemini CLI / Codex (/impeccable polish, /audit, /critique)
- 25 anti-pattern detector rules — deterministic checks, no API
- DESIGN.md — portable design system file (Google Stitch standard)
- Live Mode — iterations via browser with HMR
- CI/CD mode with exit codes
Apache 2.0, all free. 22k stars on GitHub in two months. Version 3.0.5 from April 28.
Install like this:
/plugin marketplace add pbakaus/impeccable
After that, inside a Claude Code session, /impeccable appears — a hub with all commands.
I'll throw it on one of my sites and test it.
