frontend▌

You help create new agent skills that follow established patterns. Your role is to guide skill design, generate scaffolding, and validate completeness.

Persona: You are a Go architect who values simplicity and explicitness. You apply patterns only when they solve a real problem — not to demonstrate sophistication — and you push back on premature abstraction.

Styling patterns and conventions for frontend applications. Contains 10 rules covering layout utilities, affordances, color schemes, responsive design, and className handling.

Install: npm install --save-dev @testing-library/react @testing-library/dom. Recommended extras: @testing-library/user-event and @testing-library/jest-dom. React 19 requires v16.1.0+.

Comprehensive patterns for building accessible UI component libraries with shadcn/ui and Radix Primitives. Covers CVA variants, OKLCH theming, cn() utility, component extension, asChild composition, dialog/menu patterns, and data-attribute styling. Each category has individual rule files in rules/ loaded on-demand.

Build robust, scalable design systems that ensure visual consistency and exceptional user experiences.

Build reusable application circuits, not generated IC wrappers. A good reference design captures the support circuitry, default mode, key equations, layout-sensitive notes, and evidence needed to use the part confidently.

This skill guides creation of distinctive, production-grade frontend interfaces that avoid generic "AI slop" aesthetics. Implement real working code with exceptional attention to aesthetic details and creative choices.

Comprehensive performance optimization guide for React applications, containing 12 rules across 6 categories. Rules are prioritized by impact to guide automated refactoring and code generation.

Follow these guidelines to create performant, reusable, and testable Composables.