React

react/react

Hook Claude Code

One of 2 in settings.json

Runs when a session starts, running an inline shell check. From react/react.

react/react

Settings file Claude Code

One of 2 in settings.json

Agent settings declaring 1 hook event (SessionStart) and 18 allowed tools.

react/react

Skill Claude CodeCodex

Use when feature flag tests fail, flags need updating, understanding @gate pragmas, debugging channel-specific test failures, or adding new flags to React.

react/react

Instructions file

Claude Code instructions for react/react, covering react, monorepo overview and current active work.

react/react

Agent Claude Code

Analyzes how a specific topic affects a group of compiler passes. Used by the /plan-update skill to parallelize research across all compiler phases. Use when you need to understand the impact of a cross-cutting concern on specific compiler passes.

react/react

Agent Claude Code

Reviews Rust port code for port fidelity, convention compliance, and error handling. Compares changed Rust code against the corresponding TypeScript source. Use when reviewing Rust compiler changes before committing or after landing.

react/react

Agent Claude Code

Investigates React compiler errors to determine the root cause and identify potential mitigation(s). Use this agent when the user asks to 'investigate a bug', 'debug why this fixture errors', 'understand why the compiler is failing', 'find the root cause of a compiler issue', or when they provide a snippet of code and…

react/react

Skill Claude CodeCodex

Orchestrate the Rust compiler port end-to-end. Discovers the current frontier, fixes failing passes, ports new passes, reviews, and commits in a loop.

react/react

Skill Claude CodeCodex

Use when you need to update a plan document with deep research across all compiler passes. Launches parallel subagents to analyze how a topic affects every compiler phase, then consolidates findings into the plan doc.

vercel/next.js

Instructions file ✓ vendor

Instructions for vercel/next.js, a project described as: The React Framework.

vercel/next.js

Plugin Claude Code ✓ vendor

Bundles 4 skills · 436 tokens together

Official Next.js skills: adopt and optimize Cache Components, adopt Partial Prefetching, and verify runtime behavior against a running dev server.

shadcn-ui/ui

Cursor rule Cursor

Keep registry base and radix trees in sync when editing shared UI.

shadcn-ui/ui

Skill Claude CodeCodex

Migrates React projects and components from Radix UI to Base UI. Use when asked to migrate from radix, move to base-ui, convert radix primitives, or switch a shadcn project's base library. Handles single components ("migrate accordion") and whole projects.

shadcn-ui/ui

Skill Claude CodeCodex

Manages shadcn components and projects — adding, searching, fixing, debugging, styling, and composing UI, including chat interfaces. Provides project context, component docs, and usage examples. Applies when working with shadcn/ui, component registries, presets, --preset codes, or any project with a components.json…

mui/material-ui

Instructions file

Claude Code instructions for mui/material-ui: This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

mui/material-ui

Skill Claude CodeCodex

Integrates Material UI with Next.js App and Pages routers using @mui/material-nextjs, Emotion cache providers, next/font, CSS layers with Tailwind/CSS Modules, Link component prop patterns, CSS theme variables SSR notes, and App Router useSearchParams + Suspense. Use when setting up or debugging MUI in a Next.js app.

mui/material-ui

Skill Claude CodeCodex

Chooses the right Material UI styling approach (sx, styled, theme overrides, global CSS) from official MUI guidance. Use when styling @mui/material components, customizing themes, overriding slots, or comparing sx vs styled.

abi/screenshot-to-code

Instructions file

Instructions for abi/screenshot-to-code, a project described as: Drop in a screenshot and convert it to clean code (HTML/Tailwind/React/Vue).

asgeirtj/system_prompts_leaks

Skill Claude CodeCodex

Storybook is the fidelity oracle, not the runtime. The converter bundles the package's compiled dist/ into dsbundle.js - the same bundle the claude.ai/design agent builds with - and generates each preview by compiling the story source module itself (hooks, fixtures, local helpers - the whole closure comes along), with…

remotion-dev/remotion

Skill Claude CodeCodex

Add a new effect to @remotion/effects, including implementation, package exports, docs, demos, preview images, Remotion skill updates, tests, formatting, and builds.

remotion-dev/remotion

Skill Claude CodeCodex

Manages stacked PRs and splits multi-part work into reviewable branches with gh-stack. Use for stack creation, viewing, edits, push, submit, sync, rebase, merge, or checkout; when asked to split or isolate work for review; whenever a user mentions a stack, branch layers, dependent PRs, or gh stack; or when a stack is…

remotion-dev/remotion

Skill Claude CodeCodex

Rules for writing and reviewing tests in the Remotion repository. Use whenever adding, editing, or reviewing tests, especially for Studio UI, rendering, CLI, server, media, and cross-package changes, to prefer complete integration workflows over narrow helper tests and implementation details.

remotion-dev/remotion

Instructions file GitHub Copilot

Copilot instructions for remotion-dev/remotion, covering monorepo setup, build instructions, documentation and commit messages.

remotion-dev/remotion

Instructions file CodexOpenCode

AGENTS.md instructions for remotion-dev/remotion, covering setup commands, install dependencies (uses bun), build all packages, run tests and linting and clean build artifacts.