- Add critical section: always check shadcn/ui before creating components
- List all 35 installed shadcn components with categories
- Add VERBOTEN section: never create own versions of shadcn components
- Update example component to use shadcn Card/Button/Badge
- Add shadcn checklist items before marking work as done
This ensures Claude Code always uses shadcn/ui instead of building
custom implementations of standard UI elements.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>