Can it help with web accessibility (a11y)?

Yes, it mandates the use of accessible primitives like Radix or Base UI and enforces ARIA labels for icon-only interactive elements.

How does Baseline UI improve my frontend code?

It validates your components against strict design and performance standards, ensuring accessibility and preventing common CSS mistakes like 'layout slop'.

Does it work with frameworks other than React?

While highly optimized for React (using motion/react and Radix), its core layout and typography rules are applicable to any Tailwind CSS project.

Why does it restrict specific CSS animations?

To ensure peak performance, it forces animations to use compositor properties (transform/opacity) and limits durations to under 200ms for snappy feedback.

Baseline UI Standards

Name: Baseline UI Standards
Author: JantonioFC

byJantonioFC

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Design Tools

Enforces design consistency and professional UI standards to prevent AI-generated interface slop in Tailwind CSS projects.

Baseline UI is a specialized capability for Claude Code designed to maintain high-quality frontend standards by validating animations, typography, and accessibility in real-time. It ensures developers adhere to strict Tailwind CSS best practices, prevents common layout anti-patterns like viewport height issues, and mandates the use of accessible primitives such as Base UI or Radix. This skill is ideal for teams looking to eliminate 'AI slop' and ensure that generated code is production-ready, performant, and follows modern design system principles.

Key Features

01Restricts design elements to maintain a clean, professional aesthetic

02Audits typography scales and tabular data formatting

03Validates Tailwind CSS utility usage and prevents layout anti-patterns

04Enforces accessible component primitives and ARIA labeling

05Standardizes performance-optimized animations using compositor properties

062 GitHub stars

Use Cases

01Reviewing existing React components for design system compliance

02Preventing design drift in AI-generated frontend code during rapid prototyping

03Scaffolding new UI views with accessible and performant defaults

Key Features

01Restricts design elements to maintain a clean, professional aesthetic

02Audits typography scales and tabular data formatting

03Validates Tailwind CSS utility usage and prevents layout anti-patterns

04Enforces accessible component primitives and ARIA labeling

05Standardizes performance-optimized animations using compositor properties

062 GitHub stars

Use Cases

01Reviewing existing React components for design system compliance

02Preventing design drift in AI-generated frontend code during rapid prototyping

03Scaffolding new UI views with accessible and performant defaults