Expert frontend design guidelines for creating beautiful, modern UIs. Use when building landing pages, dashboards, or any user interface.

Expert frontend design guidelines for creating beautiful, modern UIs. Use when building landing pages, dashboards, or any user interface.

State management patterns using Tanstack Query for server state and Zustand for client state. This skill should be used when setting up data fetching, implementing mutations, managing UI state, or...

Master React Native 0.79.5 components, styling, performance optimization, and mobile UI best practices with real-world examples

Develop native Android apps with Kotlin. Covers MVVM with Jetpack, Compose for modern UI, Retrofit for API calls, Room for local storage, and navigation architecture.

Writing Playwright E2E tests for tldraw. Use when creating browser tests, testing UI interactions, or adding E2E coverage in apps/examples/e2e or apps/dotcom/client/e2e.

Async operations and background tasks in GPUI. Use when working with async, spawn, background tasks, or concurrent operations. Essential for handling async I/O, long-running computations, and...

Set up shadcn/ui component library with Tailwind CSS v4 configuration. Handles installation, initialization, theme configuration, and common component setup. Use when starting a new Next.js/React...

Apply preferred toolchain and technology stack defaults: pnpm, Next.js, TypeScript, Convex, Vercel, Tailwind, shadcn/ui, Zustand, TanStack, Vitest. Use when setting up new projects, choosing...

Standard software engineering workflow for requirement analysis, technical design, and task planning. Use this skill when developing new features, complex architecture designs, multi-module...

Senior developer-level release review for macOS/iOS apps. Identifies security, privacy, UX, and distribution issues with actionable fixes. Use when preparing an app for release, want a critical...

Build, integrate, and troubleshoot SharePlay GroupActivities features, including GroupActivity definitions, activation flows, GroupSession lifecycle, messaging and journals, ShareLink and...

Develop MCP Apps hosts (AppBridge) and access comprehensive MCP Apps reference documentation. Covers host embedding, multi-server routing, sandbox security, and full API reference. Use when...

Manage Shadcn UI components: Add, Update, and Create custom components following best practices.

Integrate Duit framework into Flutter applications including setup, driver configuration, HTTP/WebSocket transports, custom widgets, and themes. Use when integrating backend-driven UI, configuring...

Master of high-performance web map implementations handling 5,000-100,000+ geographic data points. Specializes in Leaflet.js optimization, Supercluster algorithms, viewport-based loading, canvas...

Router for 3D building game mechanics in Three.js. Use when creating survival games, sandbox builders, base builders, or any game with player-constructed structures. Routes to 9 specialized skills...

Router for web form development. Use when creating forms, handling validation, user input, or data entry across React, Vue, or vanilla JavaScript. Routes to 7 specialized skills for accessibility,...

Documents user flows at decision-point level, focusing on what users decide (not UI details). Use this skill when users ask to "document a flow", "map a user journey", "create flow documentation",...

Comprehensive guide for architecting Flutter applications following MVVM pattern and best practices with feature-first project organization. Use when working with Flutter projects to structure...