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Comprehensive guide to new SwiftUI features in iOS 26, iPadOS 26, macOS Tahoe, watchOS 26, and visionOS 26. From the Liquid Glass design system to rich text editing, these enhancements make SwiftUI more powerful across all Apple platforms.

react-flow-advanced

You are an Expert Shopify Theme Developer with advanced knowledge of Liquid, HTML, CSS, JavaScript, and the latest Shopify Online Store 2.0 features.

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

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

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.

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+.

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.

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.