Tools

Builds multi-component web pages that need state or routing with React, Tailwind CSS and shadcn/ui, using bundled init and build scripts, then packs them into a single HTML file for a claude.ai Artifact. Official Anthropic skill.

Drives a Next.js route to instant navigation under Cache Components: writes a failing @next/playwright instant() e2e test, pushes Suspense boundaries down to grow the static shell until it passes, and keeps the test as a regression guard. Requires Next.js 16.3+ with cacheComponents.

Official Next.js plugin shipped in the vercel/next.js repo: guides enabling and tuning Cache Components and Partial Prefetching, and verifies changes on a running dev server with the Next.js MCP and agent-browser.

Official shadcn/ui skill: uses the shadcn CLI to read project config and component docs, then adds, searches, composes and fixes components following styling, form and accessibility rules. Can also start new projects from presets.

Official shadcn/ui CLI: initializes projects and adds component source to your codebase on demand, with switchable presets. Since v4 it offers --dry-run and --diff so agents can preview changes, and it comes with an agent skill.

MCP server built into the official shadcn CLI: lets agents browse and search components, blocks and templates in any configured registry, including private ones, and install them into your project in plain language. The project needs a components.json.

Vercel's guide to React composition patterns: replaces boolean prop sprawl with compound components, lifted state and clean Context interfaces, including React 19 API changes. Useful for refactoring component libraries and reviewing component architecture.

React and Next.js performance rules from Vercel's engineering team: 70 rules ranked by impact covering request waterfalls, bundle size, server performance and re-renders, for writing, reviewing and refactoring. Maintained by Vercel.

GSAP's official animation skills: teach agents to use the core API, timelines, ScrollTrigger and plugins correctly, including React, Vue and Svelte integration and animation performance. Maintained by GreenSock; all plugins are free.

Runs React Doctor via npx to scan React code for security, performance, correctness, accessibility and architecture issues with a 0-100 health score; checks changed code for regressions, and on /doctor fetches the official triage playbook to fix issues.

Audits a whole React codebase read-only: runs a React Doctor scan as evidence, vets findings across bugs, performance, accessibility, security and maintainability, ranks them by leverage, then writes self-contained plans other agents can execute. Never edits source.

Bundles 60+ full-stack specialist skills into one plugin: experts for 12 languages including Python, TypeScript, Go, Rust and Java, and frameworks like React, Django and Spring Boot, activated automatically by request. Also includes Jira and Confluence workflow commands (needs Atlassian MCP).

Adds a lightweight interactive WebGL globe with the cobe library: canvas sizing for device pixel ratio, location markers, rotation in onRender, resize handling and teardown, for plain pages or React/Next.js hero sections.

Helps the agent add or debug web animations with GSAP: tweens, timelines and position parameters, easing, stagger and ScrollTrigger pin and scrub, plus fixes for jank, cleanup with gsap.context() in React and refreshing after images load.

General Translation's gt CLI: a wizard sets up i18n for React, Next.js and similar apps, then sends UI strings and JSON, YAML or Markdown files for AI translation and writes them back, with CI support. Needs a Node.js project and a General Translation API key (free sign-up, usage-based pricing).

Interviews you on scope, pain points and brand tone, infers the visual language from existing styles, and builds five React UI variants on a temporary route with a feedback overlay. Iterates on feedback, then writes an implementation plan and deletes the temp files.

Makes a product film (landing-page loop, launch video, promo, demo reel) in code with Remotion, reusing the product's own design system, components and voice. It interviews the user first, then writes the story, syncs scenes to music beats, reviews stills in loops and verifies the final render.

Integrates Lottie and dotLottie animations from After Effects into web, iOS, Android and React Native: playback and segment control, scroll- or hover-driven interactivity, runtime theming and recoloring, plus an After Effects export checklist.

Adds functional UI micro-interactions with Framer Motion (motion/react) and modern CSS: hover and press feedback, toggles, toasts, drawers, modals, list reorder and shared-element transitions, with 100-250ms timings, asymmetric enter and exit easing, and reduced-motion support.

Guides the agent in building SVG icon components that morph between any two icons by moving lines instead of crossfading. Every icon uses exactly three lines, unused ones collapse to the center, and grouped variants rotate with springs. Examples use React and Motion and respect reduced motion.

Audits animation code for the right timing function: springs for gestures and interruptible motion, easing for system-driven state changes, linear for progress, and no animation for high-frequency interactions. Also checks spring parameters and durations. Reports file:line findings.

Fixes hover and click dead zones between spaced interactive elements such as chart bars, list rows, tabs and nav items by making hit targets flush and moving visual spacing inside each item, with React and Tailwind examples.

Turns Paper designs (via Paper MCP, Viewfinder or exported JSX) into componentized React/Next.js code: maps hierarchy and reusable components first, one component per icon, tokens in globals.css, shadcn reuse, real fonts and data-driven charts.

Builds product launch, promo and feature announcement videos with Remotion (React): asks nine questions about product, audience, duration, voiceover and channel, proposes 2-3 visual directions, writes a storyboard.json, then codes scenes and optional voiceover.