react SKILL.md skillA

react from frankxai/claude-skills-library is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add frankxai/claude-skills-library/react@git:20261014.a5a28f5

Pins git:20261014.a5a28f5 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
frankxai/claude-skills-library
Path
packs/stack-kits/skills/react/SKILL.md
Versions recorded
1
Latest version
git:20261014.a5a28f5, committed Oct 14, 2026
Size
10,077 bytes
Repository stars
47
License
MIT

Core React 19 patterns including hooks, Suspense, lazy loading, component structure, TypeScript best practices, and performance optimization. Use when working with React components, hooks, lazy loading, Suspense boundaries, or React-specific TypeScript patterns.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# React Core Patterns

## Purpose

Essential React 19 patterns for building modern applications with hooks, Suspense, lazy loading, and TypeScript.

**Note**: React 19 (released December 2024) breaking changes:
- `forwardRef` no longer needed - pass `ref` as a prop directly
- `propTypes` removed (silently ignored)
- New JSX transform required
- `React.FC` type discouraged - use direct function components instead

## When to Use This Skill

- Creating React components
- Using React hooks (useState, useEffect, useCallback, useMemo)
- Implementing lazy loading and code splitting
- Working with Suspense boundaries
- React-specific TypeScript patterns
- Performance optimization with React

---

## Quick Start

### Component Structure Template

```typescript
import { useState, useCallback } from 'react';

interface Props {
  userId: string;
  onUpdate?: (data: UserData) => void;
}

interface UserData {
  name: string;
  email: string;
}

function UserProfile({ userId, onUpdate }: Props) {
  const [data, setData] = useState<UserData | null>(null);

  const handleUpdate = useCallback((newData: UserData) => {
    setData(newData);
    onUpdate?.(newData);
  }, [onUpdate]);

  return (
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add frankxai/claude-skills-library/react@sha256:8286574193081e1c

The line at the top of this page pins the label git:20261014.a5a28f5, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_iwd6j4jfj5rqsi3o.svg)](https://markdownregistry.com/a/art_iwd6j4jfj5rqsi3o)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Oct 14, 2026.

versioncommittedcommitsizeaudit
git:20261014.a5a28f5 latest2026-10-14 a5a28f5 10,077 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (10077 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

frankxai/claude-skills-library · 47 stars · license MIT · pushed 2026-10-30 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_iwd6j4jfj5rqsi3o
GET https://markdownregistry.com/api/v1/resolve?ref=frankxai/claude-skills-library/react
GET https://markdownregistry.com/api/v1/blob/8286574193081e1c5aed8cc811afb6f71201ca1f8274bbb2208d326697d35e7e

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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