Storybook for React Native is a development environment for designing and testing individual React Native components without running the whole application. It is for React Native and Expo developers who need to build components in isolation, document them with stories, and test them. The catalogue skills, plugins, instructions, MCP integration, and command support workflows around using Storybook for React Native.
Borrowing it
Nothing to install: this file belongs to storybookjs/react-native. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/storybookjs/react-native/next/CLAUDE.mdgit clone --depth 1 https://github.com/storybookjs/react-nativeWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/storybookjs/react-native/claude-md)<a href="https://agentmods.dev/instructions/storybookjs/react-native/claude-md"><img src="https://agentmods.dev/badge/instructions/storybookjs/react-native/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/storybookjs/react-native/claude-md"><img src="https://agentmods.dev/badge/instructions/storybookjs/react-native/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01082 | $0.01082 |
| Opus 5.5 | $0.00433 | $0.00433 |
| Sonnet 5.5 | $0.00216 | $0.00216 |
| Haiku 4.5 | $0.00108 | $0.00108 |
Grade A, and why
react-native CLAUDE.md scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
use curl to send events to channel server, such as to update the args: How it starts
The opening of the file, as written. The whole thing — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.
This file provides guidance to agents when working with code in this repository.
Development Commands
# Initial Setup
pnpm install
pnpm build
# Development
pnpm dev # Watch all packages for changes
pnpm example # Run the expo example app with Storybook
# Story Generation
pnpm -F expo-example storybook-generate # Regenerate storybook.requires.ts
# Testing
pnpm test # Run unit tests across all packages
pnpm test:ci # Run tests in CI mode
# Code Quality
pnpm lint # Run ESLint across the codebase
pnpm format:check # Check Prettier formatting
pnpm format:fix # Auto-fix Prettier formatting
# Documentation (from docs/ directory)
cd docs
pnpm start # Start development server
pnpm build # Build documentation
pnpm serve # Serve built documentation
Architecture Overview
pnpm workspaces monorepo containing React Native Storybook packages.
Packages
Apps
- examples/expo-example - Expo example app showcasing Storybook
- docs - Documentation site for Storybook React Native
Core:
@storybook/react-native- Main package providing Storybook functionality@storybook/react-native-ui- Full UI components for on-device Storybook@storybook/react-native-ui-lite- Lightweight UI components@storybook/react-native-ui-common- Shared UI components@storybook/react-native-theming- Theming utilities
On-Device Addons:
@storybook/addon-ondevice-actions- Log component interactions@storybook/addon-ondevice-backgrounds- Change story backgrounds@storybook/addon-ondevice-controls- Dynamically edit component props@storybook/addon-ondevice-notes- Add markdown documentation to stories
Build System & Metro Configuration
- Uses tsup for TypeScript compilation (ES2022, CommonJS output)
- Each package has its own
tsup.config.ts pnpm preparein a package builds it
The withStorybook Metro wrapper (for Metro-based projects):
- Enables
unstable_allowRequireContextfor dynamic story imports - Automatically generates
storybook.requires.tsfile - Optional WebSocket server for remote control
- Can be conditionally enabled/disabled via
enabledoption - Supports
liteModefor reduced bundle size
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 6d ago Changed · +38 lines · +299 tokens per session d3300179d351
- 1mo ago First seen · 96 lines · 783 tokens per session scan A 7a6d2c63e991
react-native CLAUDE.md is an instructions file published in the GitHub repository storybookjs/react-native (1,323 stars, last pushed 2d ago), licensed MIT. It adds 1,082 tokens to every session, about $0.0043 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
mcp-react-native-toolkit copilot-instructions.md
Copilot instructions for ItamiForge/mcp-react-native-toolkit, covering github copilot (vs code) instructions, project context, core rules, api validation and best practices.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).