react SKILL.md skillA

react from xobotyi/cc-foundry is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add xobotyi/cc-foundry/react@git:20261026.ce5d7ce

Pins git:20261026.ce5d7ce in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
xobotyi/cc-foundry
Path
plugins/frontend/skills/react/SKILL.md
Versions recorded
5
Latest version
git:20261026.ce5d7ce, committed Oct 26, 2026
First version recorded
Mar 13, 2026
Size
21,320 bytes
Repository stars
23
License
MIT

React component discipline: pure components, minimal state, effects as escape hatches. Invoke whenever task involves any interaction with React code — writing, reviewing, refactoring, debugging, or understanding JSX, hooks, component architecture, state management, or performance optimization.

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

**Components are pure functions. State is minimal. Effects are escape hatches. If you reach for useEffect, verify you
actually need it.**

React rewards thinking in components: break UI into pieces, find minimal state, identify where it lives, and wire data
flow from parent to child. References contain extended examples, rationale, and edge cases for each topic area.

## References

- **Components** — `${CLAUDE_SKILL_DIR}/references/components.md` Composition, refs, metadata, custom elements
- **Hooks** — `${CLAUDE_SKILL_DIR}/references/hooks.md` Hook rules, custom hooks, `useSyncExternalStore`
- **State** — `${CLAUDE_SKILL_DIR}/references/state.md` Placement, reducers, context, actions
- **Performance** — `${CLAUDE_SKILL_DIR}/references/performance.md` Compiler, memoization, server components, streaming
- **Testing** — `${CLAUDE_SKILL_DIR}/references/testing.md` Query priority/variants, userEvent catalog, async patterns

## Component Design

### Thinking in React

Build UI in five steps:

1. Break UI into a component hierarchy — each component does one thing.
2. Build a static version first — props only, no state, no interactivity.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add xobotyi/cc-foundry/react@sha256:8b9bdef44c09be4d

The line at the top of this page pins the label git:20261026.ce5d7ce, 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_qcdjabyvpaifxucy.svg)](https://markdownregistry.com/a/art_qcdjabyvpaifxucy)

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

Versions

The registry has recorded 5 versions of this file, between Mar 13, 2026 and Oct 26, 2026, about one every 57 days.

versioncommittedcommitsizeaudit
git:20261026.ce5d7ce latest2026-10-26 ce5d7ce 21,320 BA view · diff
git:20261026.99aa6242026-10-26 99aa624 20,570 BA view · diff
git:20260517.b0a15fa2026-05-17 b0a15fa 19,965 BA view · diff
git:20260314.9629b352026-03-14 9629b35 20,239 BA view · diff
git:20260313.02a8e7c2026-03-13 02a8e7c 21,401 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 (21320 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

xobotyi/cc-foundry · 23 stars · license MIT · pushed 2026-10-31 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_qcdjabyvpaifxucy
GET https://markdownregistry.com/api/v1/resolve?ref=xobotyi/cc-foundry/react
GET https://markdownregistry.com/api/v1/blob/8b9bdef44c09be4dc87da91757c2ae880197f64dcb1f2f05c804c7d28f3248af

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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