List available UI design systems and component libraries with optional metadata filters (framework, category, organization, tags, styling, accessibility, novelty).

Search UI systems using natural language queries, keywords, tags, or concepts (e.g. "developer tool dashboard", "GitHub like design systems", "unusual retro look", "accessible React components", "systems that don't look like shadcn").

Get complete detailed metadata, design philosophy, accessibility details, component guidance, and AI rules for a specific UI system ID.

Compare 2 to 8 UI systems side-by-side across styling, accessibility, density, opinionated level, strengths, weaknesses, and target domains.

Select the UI design system to be used by the AI coding agent for this project/session. Strict mode locks the selection and prohibits unrequested library substitutions.

Get the currently selected UI system for the active session/project, along with the mandatory implementation rules and constraints for the AI agent.

Clear the currently active UI system selection and optionally remove the .ui-system.json configuration file.

Get official package names, installation commands, peer dependencies, and setup instructions for a UI system.

Get guidance on canonical component names, import statements, props conventions, accessibility notes, and official documentation links for a specific UI element (e.g. Button, Dialog, Modal, Table, SearchBar, Lozenge).

Recommend 3-7 suitable UI design systems based on project type, framework, and developer preferences, with discovery options to highlight hidden gems rather than defaulting to mainstream choices.