Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
git clone --depth 1 https://github.com/holtwood/awesome-cursorrules-zhWrote 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/rules/holtwood/awesome-cursorrules-zh/react-functional-components-preference)<a href="https://agentmods.dev/rules/holtwood/awesome-cursorrules-zh/react-functional-components-preference"><img src="https://agentmods.dev/badge/rules/holtwood/awesome-cursorrules-zh/react-functional-components-preference/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/rules/holtwood/awesome-cursorrules-zh/react-functional-components-preference"><img src="https://agentmods.dev/badge/rules/holtwood/awesome-cursorrules-zh/react-functional-components-preference.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 | $0.00000 | $0.00431 |
| Opus 5 | $0.00000 | $0.00216 |
| Sonnet 5 | $0.00000 | $0.00086 |
| Haiku 4.5 | $0.00000 | $0.00043 |
Grade A, and why
react-functional-components-preference 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 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.
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.
What it actually says
- 始终使用带有 hooks 的函数式组件而不是类组件：
- 现代化开发：优先使用 React Hooks（如
useState,useEffect,useContext,useReducer,useCallback,useMemo等）进行状态管理和副作用处理，以符合 React 官方推荐的现代化开发范式。 - 代码简洁性：函数式组件通常比类组件更简洁，更易于阅读和理解，尤其是在处理逻辑复用时。
- 逻辑复用：通过自定义 Hooks，可以方便地在不同组件之间共享状态逻辑，避免了高阶组件（HOCs）和渲染属性（Render Props）带来的嵌套问题。
- 性能优化：结合
useCallback和useMemo等 Hooks，可以有效地进行性能优化，避免不必要的渲染。 - 可测试性：函数式组件和 Hooks 更容易进行单元测试。
- 示例：
// 函数式组件示例 import React, { useState, useEffect } from 'react'; function Counter() { const [count, setCount] = useState(0); useEffect(() => { document.title = `You clicked ${count} times`; }, [count]); return ( <div> <p>You clicked {count} times</p> <button onClick={() => setCount(count + 1)}> Click me </button> </div> ); } - 特殊情况：仅在极少数需要使用
getSnapshotBeforeUpdate或componentDidCatch等生命周期方法时，才考虑使用类组件，但大多数场景下 Hooks 都能提供替代方案（如错误边界）。
- 现代化开发：优先使用 React Hooks（如
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 First seen · 34 lines · 0 tokens per session scan A c932641248c4
react-functional-components-preference is a cursor rule published in the GitHub repository holtwood/awesome-cursorrules-zh (233 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 431 tokens. 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 2026-09-03.
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app-router-patterns
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testing
Testing conventions for Vitest and React Testing Library -- the agent pulls this in when writing or modifying tests.
react-query-tests
// ✅ CORRECT: Legacy React Query pattern const ctx = konn() .beforeEach(() => createAppRouter()) .afterEach((ctx) => ctx?.close?.()) .done().
tanstack-react-query-tests
// ✅ CORRECT: Use await using for automatic cleanup await using ctx = testReactResource(appRouter, { server: { // server configuration }, client(opts) { return { links: [ httpLink({ url: opts.httpUrl, // client configuration }), ], }; }, }).
nextjs-react-tailwind-cursorrules-prompt-file
Cursor rules for Next.js development with React and Tailwind CSS integration.