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Build full-stack web apps with Svelte and SvelteKit. Minimal runtime overhead, reactive components, and server-side rendering. The most admired frontend framework of 2025. Svelte compiles components to vanilla JavaScript at build time, resulting in zero runtime overhead and exceptional performance.

Generate React UI with v0 (Vercel): produce shadcn/ui and Tailwind CSS components and full Next.js pages from prompts, then refine and add them to your app with the shadcn CLI.

Lightweight, modular open-source Python framework for building agentic AI pipelines from atomic, composable components (agents, tools, context providers), built on Instructor and Pydantic.

Visual low-code builder for AI agents, RAG apps, chatbots, agentic workflows, multi-agent systems, LangChain-based components, API-serving flows, and self-hosted deployments through npm, Docker, and cloud platforms.

Browse and install Magic UI animated React components from Claude — search the library by name or keyword, retrieve full installation details for any entry, and get guided setup instructions — with the official Magic UI MCP server.

Source-backed agent for turning Codecov patch coverage, project coverage, flags, components, carryforward behavior, PR comments, and changed-file context into targeted regression test plans.

MCP server for extracting design systems from live websites, including design tokens, regions, components, contrast data, Tailwind themes, Figma variables, and prompt packs.

MCP server that gives Claude access to shadcn/ui component source, demos, blocks, metadata, and multi-framework implementations.

Magic MCP by 21st.dev lets Claude generate polished, production-ready UI components from natural language, returning React and Tailwind code you can drop straight into a project.

A reusable agent prompt that vets a Claude Code plugin or marketplace before a team installs it. It walks source trust, the plugin's Will-install list and bundled components (skills, agents, hooks, MCP servers, commands), the context-window cost, version pinning, and the user/project/local/managed install scope.

Source-backed agent that reviews Claude Code plugins for dependency and compatibility issues, checking the plugin.json manifest, bundled components, external binaries like LSP servers, versioning, and namespace conflicts, grounded in the official Claude Code plugin docs.

Generate beautiful, searchable documentation using Mintlify with AI-powered content generation, API reference automation, and MDX components

A coding rule that makes Claude fluent in React Server Components — the React 19 component type that renders ahead of bundling, on a server or at build time. It guides async server components, the use client boundary, Suspense streaming, and Server Functions through the Next.js 15 App Router.

Security-first React component architect with XSS prevention, CSP integration, input sanitization, and OWASP Top 10 mitigation patterns

Generate production-ready React components from natural language using V0.dev patterns with shadcn/ui, TailwindCSS, and TypeScript

Automatically runs Playwright E2E tests when test files or page components are modified.

Automatically creates or updates test files when React components are modified.

Automatically compiles and validates Svelte components when they are modified.

Lints Vue 3 components for Composition API best practices and common issues.

Agent Skills and plugin packs for Google Stitch design workflows, including code-to-design, design generation, design-system extraction, React and React Native conversion, shadcn/ui guidance, Remotion walkthroughs, and prompt enhancement.

Next.js App Router production-architecture specialist focused on the server/client boundary, the explicit caching model, route handlers, and Node-vs-Edge runtime tradeoffs — decisions, not component tips

Open-source semantic cache for LLM applications that stores and reuses model responses through embedding similarity to cut API cost and latency, with modular embedding, vector-store, cache-storage, and eviction components.

Security scanner from Snyk for discovering local AI agent components, including MCP servers and Agent Skills, and checking them for prompt injection, tool poisoning, tool shadowing, toxic flows, malware payloads, credential handling, and hardcoded secrets.

Unity Editor MCP bridge from CoderGamester that lets Claude and other MCP clients inspect scenes, manage GameObjects, edit components and materials, run tests, read console logs, and automate Unity project workflows through a Node.js stdio server connected to a Unity WebSocket bridge.

Figma MCP bridge that connects Claude Code, Cursor, and other agents to a Figma plugin through WebSocket channels so they can read designs and modify nodes, text, layouts, styles, annotations, and components.

Add or maintain next-intl internationalization in a Next.js App Router project with messages, request configuration, locale-based routing, proxy or middleware behavior, Server and Client Components, typed message keys, localized navigation, SEO review, testing, and rollout planning.

Open-source visual framework for building and deploying AI agents, RAG apps, workflows, MCP tools, and LLM applications with reusable components.

Source-backed Claude agent prompt for contributing to the official storybookjs/storybook monorepo using its AGENTS.md guidance for the next branch, Node 22.12+, Yarn Berry, NX, yarn task, Storybook Vitest, sandboxes, framework packages, docs, and generated-file safety.