Skill UI

Modern Angular UI patterns that coordinate loading spinners, skeletons, error states, empty states, and progressive data display; designed for component builders managing async data, optimistic updates, and graceful degradation.

Highlights React 19 idioms such as the new use() hook, server components, server actions, optimistic updates, suspense, error handling, and compound hooks to structure Next.js apps with streaming data, interactivity, and reusable hooks.

Guides building Next.js Server Actions for App Router forms, mutations, and optimistic updates, covering useFormState/useFormStatus hooks, revalidation helpers, and post-submission redirects.

This skill provides expertise in TanStack Query (React Query), a powerful tool for asynchronous state management in modern React and Next.js applications. It covers advanced patterns like data fetching, cache invalidation, optimistic updates, and handling SSR hydration, ensuring highly performant and reliable data layers.

A comprehensive discipline for managing the write path in React or React Native applications using a query/cache layer. It codifies the full optimistic update lifecycle, ensuring that UI updates feel instantaneous, rollbacks are verbatim upon failure, and the global cache remains perfectly coherent across all components and list views. This pattern is essential for complex, highly interactive user experiences.