What problem does it solve? AI-generated UI code often contains inconsistent styling, inaccessible components, and performance-harming animation patterns. This Skill enforces an opinionated baseline of UI constraints so Tailwind CSS and React interfaces stay consistent, accessible, and performant. ## Core Features & Use Cases - Constraint Enforcement: Applies rules for animation durations, typography scale, z-index usage, and layout anti-patterns across any UI work in the conversation. - File Review Mode: Reviews a specific file against all constraints and outputs violations with quoted snippets, explanations, and concrete code-level fixes. - Accessibility Guardrails: Requires accessible primitives (Base UI, React Aria, Radix), aria-labels on icon-only buttons, and AlertDialog for destructive actions. - Use Case: While building a React dashboard with Tailwind CSS, invoke the Skill to review a component file and receive a list of violations such as animating layout properties, using h-screen instead of h-dvh, or missing aria-labels, each with a suggested fix. ## Quick Start Ask the AI to review your component file with baseline-ui and list all violations with fixes.