component-patterns

component-patterns is a cursor rule for Cursor from sushaantu/boxento. It costs 174 tokens per session, scanned A, original, MIT.

A set of conventions for building React interface components with TypeScript, including their structure, styling, accessibility, and tests.

In plain words
What is it for?
Use it when creating reusable React components, custom hooks, accessible interactions, error handling, and component tests.
Why use it?
It gives a team consistent rules for writing and organizing components. React is a JavaScript library for building user interfaces, while TypeScript adds type checking to JavaScript.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit Use it when creating reusable React components, custom hooks, accessible interactions, error handling, and component tests.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/sushaantu/boxento/component-patterns
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/sushaantu/boxento

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.

agentmods badge for component-patterns

README.md
[![agentmods](https://agentmods.dev/badge/rules/sushaantu/boxento/component-patterns/github.svg)](https://agentmods.dev/rules/sushaantu/boxento/component-patterns)
Your own site
<a href="https://agentmods.dev/rules/sushaantu/boxento/component-patterns"><img src="https://agentmods.dev/badge/rules/sushaantu/boxento/component-patterns/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.

agentmods 80×15 button for component-patterns

Your own site · 80×15
<a href="https://agentmods.dev/rules/sushaantu/boxento/component-patterns"><img src="https://agentmods.dev/badge/rules/sushaantu/boxento/component-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 174 This file is loaded in full into every session.
When invoked 174 The same file — it is already loaded in full.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00174 $0.00174
Opus 5.5 $0.00070 $0.00070
Sonnet 5.5 $0.00035 $0.00035
Haiku 4.5 $0.00017 $0.00017

Measured 1mo ago against content hash 70b4e8b0c7ce, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

component-patterns 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 1mo 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.

.cursor/rules/component-patterns.mdc · 21 lines

What it actually says

  • Use functional components with TypeScript
  • Implement proper prop typing using interfaces
  • Use Tailwind CSS for all styling needs
  • Follow atomic design principles for component organization
  • Implement proper error boundaries
  • Use React hooks effectively
  • Add appropriate accessibility attributes (aria-* props, role, etc.)
  • Use compound components pattern for complex UI components
  • Implement test coverage for all components
  • Use memoization (React.memo, useMemo, useCallback) for performance optimization
  • Create custom hooks for reusable logic
  • Use Context API for state management that spans multiple components
  • Implement lazy loading for components when beneficial
  • Add proper keyboard navigation support
  • Use composition over inheritance for component structure
  • Add detailed JSDoc comments for component props
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.

  1. 1mo ago First seen · 21 lines · 174 tokens per session scan A 70b4e8b0c7ce

Subscribe to this mod's changes

component-patterns is a cursor rule published in the GitHub repository sushaantu/boxento (154 stars, last pushed 9d ago), licensed MIT. It adds 174 tokens to every session, about $0.0007 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 2026-09-01.