ReactUse is a TypeScript library of reusable React Hooks for browser APIs, state, sensors, animations, and DOM interactions. React developers use it when building React applications that need these common behaviors. The catalogue skills and commands help coding agents discover or work with ReactUse hooks.
Borrowing it
Nothing to install: this file belongs to childrentime/reactuse. 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/childrentime/reactuse/main/.claude/skills/hook-docs/SKILL.mdgit clone --depth 1 https://github.com/childrentime/reactuseWrote 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/skills/childrentime/reactuse/hook-docs)<a href="https://agentmods.dev/skills/childrentime/reactuse/hook-docs"><img src="https://agentmods.dev/badge/skills/childrentime/reactuse/hook-docs/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/skills/childrentime/reactuse/hook-docs"><img src="https://agentmods.dev/badge/skills/childrentime/reactuse/hook-docs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00075 | $0.00873 |
| Opus 5.5 | $0.00030 | $0.00349 |
| Sonnet 5.5 | $0.00015 | $0.00175 |
| Haiku 4.5 | $0.00007 | $0.00087 |
Grade A, and why
hook-docs scanned grade A with 0 findings 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 2mo 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.
hook-docs — document a hook the ReactUse way
Docs live in the Astro site packages/website-astro. The sidebar and routes are built
automatically from file paths — there is no routes.json or sidebar config to edit.
File locations (one per locale)
packages/website-astro/src/content/docs/{category}/useX.mdx # English
packages/website-astro/src/content/docs-zh-hans/{category}/useX.mdx # 简体中文
packages/website-astro/src/content/docs-zh-hant/{category}/useX.mdx # 繁體中文
{category} is one of: browser, effect, element, state, integrations. The folder
you choose is the category — it sets the registry entry and the canonical URL
(https://reactuse.com/{category}/usex/, lowercase).
Frontmatter
Schema is in packages/website-astro/src/content.config.ts — only title is required;
description, sidebar_label, sidebar_position are optional. Match the existing style:
---
title: useX – State Hook Usage & Examples
sidebar_label: useX
description: "useX is a React hook that … (one sentence, used as the meta description)."
---
Body structure
Follow the established shape (see content/docs/browser/useClipboard.mdx):
# useX
One-line summary of what it does.
A short paragraph explaining the hook, linking to the relevant MDN/spec page where useful.
### When to Use
- bullet of a concrete use case
- another
### Notes
- SSR safety / browser-support caveats
- any gotchas
## Usage
```tsx live
function Demo() {
const [value, set] = useX(0);
return <button onClick={() => set(value + 1)}>{value}</button>;
};
%%API%%
- The ` ```tsx live ` fence renders a live, editable demo. Write the demo **inline** — it is
not imported from the hook's source.
- Keep `%%API%%` as the last line. It's replaced at build time with the generated API table
(from the hook's `interface.ts` JSDoc); if no API doc exists yet it's silently removed.
## Translations
The zh-Hans / zh-Hant files mirror the English structure exactly — translate the prose and
the frontmatter `title`/`description`, keep the code demo identical.
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.
- 2mo ago First seen · 101 lines · 75 tokens per session scan A e296d74be2fe
hook-docs is a skill published in the GitHub repository childrentime/reactuse (1,068 stars, last pushed 8d ago), licensed Unlicense. It adds 75 tokens to every session and 873 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
hook-docs compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| hook-docschildrentime/reactuse | Skill | 1.1k | 8d ago | Unlicense | A | 75 | Claude Code |
| prism-componenttonone-ai/tonone | Skill | 77 | 23d ago | MIT | A | 43 | Claude Code |
| juniors-best-practicesiberiacancode/agent-skills | Skill | 23 | 27d ago | MIT | A | 55 | Claude Code, Codex |
| react-hooks-best-practicessiberiacancode/agent-skills | Skill | 23 | 27d ago | MIT | A | 71 | Claude Code, Codex |
| reactusesiberiacancode/agent-skills | Skill | 23 | 27d ago | MIT | A | 50 | Claude Code, Codex |
| testing-best-practicessiberiacancode/agent-skills | Skill | 23 | 27d ago | MIT | A | 47 | Claude Code, Codex |
| fluencyloopbaokhang83/fluencyloop | Skill | 47 | 2mo ago | Apache-2.0 | A | 98 | Claude Code |