A set of React coding rules for functional components, hooks, reusable components, and separating client-side from server-side code. React is a JavaScript library for building user interfaces.

Use it when building React components, managing state, fetching data with React Server Components, and changing data with Next.js server actions.

It helps keep interface code consistent and maintainable while choosing suitable patterns for state, data fetching, and updates.

react — Cursor rule for Cursor by lacymorrow/paperclip-hub

Install

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.

Clone the repo

git clone --depth 1 https://github.com/lacymorrow/paperclip-hub

Made for: Cursor.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/rules/lacymorrow/paperclip-hub/react/github.svg)](https://agentmods.dev/rules/lacymorrow/paperclip-hub/react)

Your own site

<a href="https://agentmods.dev/rules/lacymorrow/paperclip-hub/react"><img src="https://agentmods.dev/badge/rules/lacymorrow/paperclip-hub/react/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.

Your own site · 80×15

<a href="https://agentmods.dev/rules/lacymorrow/paperclip-hub/react"><img src="https://agentmods.dev/badge/rules/lacymorrow/paperclip-hub/react.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Nothing until a file matches its globs; then the whole rule loads.

When invoked 113 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00113
Opus 5.5	$0.00000	$0.00045
Sonnet 5.5	$0.00000	$0.00023
Haiku 4.5	$0.00000	$0.00011

Measured yesterday against content hash 14857322a6b7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

react 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 yesterday.

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.

.cursor/rules/react.mdc · 17 lines

What it actually says

React Best Practices

Use functional components and hooks for state management. Ensure components are reusable and maintainable. Prefer React Server Components for fetching data. Prefer server actions over API requests for mutating data. Maintain a separation of concerns between client and server components.

Prefer arrow functions for React components: ✅ export const Component = () => { ... } ❌ export function Component() { ... } ❌ export default function Component() { ... }

Changes

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.

yesterday First seen · 17 lines · 113 tokens per session scan A 14857322a6b7

Subscribe to this mod's changes

react is a cursor rule published in the GitHub repository lacymorrow/paperclip-hub (15 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 113 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 2026-11-10.

Frontend React ai-agents drizzle-orm nextjs paperclip payload-cms plugin-registry

react next to 6 cursor rules from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
reactlacymorrow/paperclip-hub	Cursor rule	15	yesterday	MIT	A	0	Cursor
agent-developmentCopilotKit/CopilotKit	Cursor rule	39k	today	MIT	A	0	Cursor
ai-collaborationvibestackdev/vibe-stack	Cursor rule	8	yesterday	MIT	A	813	Cursor
hydration-safetyvibestackdev/vibe-stack	Cursor rule	8	yesterday	MIT	A	0	Cursor
project-contextvibestackdev/vibe-stack	Cursor rule	8	yesterday	MIT	A	508	Cursor
stripe-webhooksvibestackdev/vibe-stack	Cursor rule	8	yesterday	MIT	A	0	Cursor
supabase-auth-securityvibestackdev/vibe-stack	Cursor rule	8	yesterday	MIT	A	0	Cursor