Visible implementation
Behavior, styling and accessibility stay inspectable where you use them.
Source-owned React components
Designed for users.Structured for agents.
Accessible, polished components for real product interfaces. Inspectable source, predictable conventions and a standard shadcn workflow let coding agents build with them without guessing.
Foundation
- Runtime
- React 19
- Primitives
- Base UI
- Styling
- Tailwind CSS 4
- License
- MIT
- Ownership
- Your repository
pnpm dlx shadcn@4.16.1 add @siteplane/baseBuilt for clarity
Designed for agents.Made for humans.
A solid foundation with sensible patterns, so interfaces stay consistent, accessible and easy to extend.
Stable conventions
Predictable folders and APIs help coding agents work with less context.
Local customization
Adapt component source without building permanent override layers.
Composed by design
Primitives share tokens and patterns, so the system remains coherent.
Component index
Production primitives.
Open a component to inspect its preview, source and API.