React-разработка на уровне senior

web-development

React expert is a Claude Code skill that turns Claude into a senior React specialist with deep knowledge of React 18+/19, Server Components, and production-grade TypeScript application architecture. Reach for it when you need to scaffold a new component or full page in Next.js App Router, when legacy class components are overdue for a hooks migration, when forms are sluggish and you need to trace unnecessary re-renders, or when your project is moving to React 19 and you need useActionState and server actions wired up correctly. The skill covers component authoring in .jsx/.tsx, custom hooks with proper cleanup, state management via Context, Zustand, or Redux Toolkit, data fetching with TanStack Query and use(), Suspense boundaries, and performance tuning through memo, lazy loading, and virtualization. All output is strict-mode TypeScript; the built-in workflow runs tsc --noEmit and React Testing Library tests to a clean pass before finishing. Reference guides for Server Components, React 19 features, hooks patterns, testing, and class-to-modern migration load automatically based on context. The skill is squarely front-end React — full-stack concerns are handled by fullstack-guardian, and end-to-end browser testing by playwright-expert. Works with create-react-app and Next.js App Router projects; does not substitute a security review and does not cover Vue, Svelte, or Angular.