Skill Claude CodeCodex
Utility hooks for React state management — grouped state and localStorage persistence. Use when managing grouped state that changes together, persisting state to localStorage, or coordinating state between URL and storage.
Skill Claude CodeCodex
Build backend AI with Vercel AI SDK v7 — generateText, streamText, ToolLoopAgent, tools. Use when implementing AI SDK v7 or troubleshooting AI errors. Never write AI SDK from memory.
Skill Claude CodeCodex
Build React chat UIs with Vercel AI SDK v7 — useChat, DefaultChatTransport, status, sendMessage. Use when implementing AI SDK v7 chat UIs or troubleshooting useChat stream parse / no response / stale values. Never write useChat from memory.
Skill Claude CodeCodex
Drizzle ORM for TypeScript — type-safe SQL queries, schema definitions, migrations, and relations. Use when building database layers in TypeScript applications.
Skill Claude CodeCodex
Emil Kowalski's animation best practices for web interfaces. Use when writing, reviewing, or implementing animations in React, CSS, or Framer Motion. Triggers on tasks involving transitions, easing, gestures, toasts, drawers, or motion.
Skill Claude CodeCodex
EAS service (paid). Helps understand and write EAS workflow YAML files for Expo SDK 57 projects. Use this skill when the user asks about CI/CD or workflows in an Expo or EAS context, mentions .eas/workflows/, or wants help with EAS build pipelines or deployment automation.
Skill Claude CodeCodex
EAS service (paid). Deploy Expo SDK 57 apps to the app stores with EAS - build and submit to the iOS App Store, Google Play Store, and TestFlight, configure eas.json build and submit profiles, manage app versions and build numbers, and publish App Store metadata and ASO. Use whenever the user wants to deploy, release…
Skill Claude CodeCodex
Framework (OSS). Build and distribute Expo development clients locally or via TestFlight for internal testing (Expo SDK 57; upstream v55 naming). For production TestFlight releases and store submission, use the expo-deployment-v55 skill.
Skill Claude CodeCodex
Framework (OSS). Set up Tailwind CSS v4 in Expo SDK 57 with react-native-css and NativeWind v5 for universal styling (upstream v55 naming).
Skill Claude CodeCodex
Framework (OSS). Guidelines for upgrading to Expo SDK 57 and fixing dependency issues (upstream v55 naming; NativeWind v5, NativeTabs).
Skill Claude CodeCodex
Framework (OSS). Use Expo SDK 57 DOM components to run web code in a webview on native and as-is on web. Migrate web code to native incrementally. For the end-to-end migration of a whole web app, use the expo-web-to-native skill.
Skill Claude CodeCodex
TypeBox schemas with Fastify routes for type-safe API development — native JSON Schema, automatic OpenAPI generation. Use when building Fastify REST APIs with schema validation and OpenAPI generation.
Skill Claude CodeCodex
Folder-plus-index grouping for related modules — when to use folders, index.ts, named entries, and what to avoid (mega-barrels, basename collisions). Use when creating, reviewing, or migrating module layout in TypeScript monorepos.
Skill Claude CodeCodex
Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with aesthetic direction, typography, and making choices that don't read as templated defaults.
Skill Claude CodeCodex
React animations with Motion v13 (gestures, scroll, layout, SVG). Use when drag-and-drop, scroll animations, modals, carousels, parallax, or AnimatePresence issues.
Skill Claude CodeCodex
Next.js 16 App Router performance, caching, server components, server actions, routing, and codebase-hygiene best practices — plus a category-major review/refactor algorithm with codebase-level (remove/dedup/reuse) findings. This skill should be used when writing Next.js 16 App Router code, configuring caching with…
Skill Claude CodeCodex
Prevent Ethereum hashing bugs in JavaScript and TypeScript. Node's sha3-256 is NIST SHA3, not Ethereum Keccak-256, and silently breaks selectors, signatures, storage slots, and address derivation. Use when hashing for Ethereum in JavaScript or TypeScript, or when a selector, signature, storage slot, or derived address…
Skill Claude CodeCodex
Comprehensive guide for type-safe URL query state management with nuqs across Next.js, React Router, TanStack Router, Remix, and plain React. Covers nuqs v2.5–v2.9 features. Contains 39 rules across 8 categories, prioritized by impact to guide code generation, refactoring, and code review.
Skill Claude CodeCodex
Generate TypeScript clients from OpenAPI specs using @hey-api/openapi-ts — type-safe API clients. Use when generating TypeScript clients from OpenAPI specifications for frontend or API consumers.
Skill Claude CodeCodex
Ad-hoc Playwright browser automation (scripts in /tmp). Use when testing a URL in a visible browser. App E2E belongs in the consuming repo's E2E dirs — see project rules (e.g. e2e-playwright.mdc).
Skill Claude CodeCodex
Set up Tailwind v4 with shadcn/ui using @theme inline pattern and CSS variable architecture — component composition, accessibility, React Hook Form. Use when initializing React projects with Tailwind v4, setting up shadcn/ui dark mode, composing components, implementing forms, fixing theme/CSS issues, or migrating…
Skill Claude CodeCodex
Solana dApp UI with kit and web3.js. Use when wallet connect, transactions, or Solana address validation in React/Next.js.
Skill Claude CodeCodex
Build scalable design systems with Tailwind CSS v4, design tokens, component libraries, and responsive patterns. Use when creating component libraries, implementing design systems, or standardizing UI patterns.
Skill Claude CodeCodex
TanStack Query (React Query) for async operations, data fetching, caching, and state management. Use when fetching server data, managing async operations, caching responses, handling mutations, or any operation that benefits from automatic state management and caching.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: