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.
npx agentmods add rules/maccman/ai-expo-starter-template/reactgit clone --depth 1 https://github.com/maccman/ai-expo-starter-templateWhat 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 | $0.00000 | $0.00255 |
| Opus 5 | $0.00000 | $0.00128 |
| Sonnet 5 | $0.00000 | $0.00051 |
| Haiku 4.5 | $0.00000 | $0.00026 |
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 2d 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.
This is a copy
88% identical to react — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
React Naming Conventions:
- Use kebab-case for files and directories.
Components:
- DO not use 'use client' or 'use server' statements
- Favor named exports for components
- Ensure components are modular, reusable, and maintain a clear separation of concerns.
- Always split React components out so there is only ever one per file
- Keep logic as low as possible. For example a PostItem should handling its own deletion, rather than passing the logic up in a property callback.
- Rather than have a large function, like a TRPC mutation handler, inside the component, refactor and split it out into a generic helper or hooks lib.
- Prefer the hooks pattern for complex logic. Look at existing examples in the project.
- DO NOT
import * as React from 'react', import each React function specifically zodandreact-hook-formpackages are installed - use them.
UI and Styling:
- Use Shadcn UI, Radix, and Tailwind Aria for components and styling
- Prefer using Shadcn components for anything UI related
- Implement responsive design with Tailwind CSS; use a mobile-first approach
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.
- 2d ago First seen · 28 lines · 255 tokens per session scan A 087d2534e47d
react is a cursor rule published in the GitHub repository maccman/ai-expo-starter-template (4 stars, last pushed 11mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 255 tokens. A static security scan graded it A with 0 findings. It is 88% identical to react, differing in 2 lines, and is treated as a copy.
Other cursor rules, from other repositories
react-vite-web
Cursor rule "react-vite-web" from WellApp-ai/Well, covering web rules (react + vite), routing, component structure, state management and api integration.
frontend-patterns
React/TypeScript patterns for src/ code.
new-component
Workflow for creating new React components.
frontend-architecture
Vite + React SPA architecture - directory layout, providers, bundle splitting. Tailwind styling in tailwind.mdc.
performance-optimization-rule
Rules to optimize performance of React and TypeScript components.
nextjs
Next.js 16 App Router Standards & Constraints.