best-practices

Apply modern web development best practices for security, compatibility, and code quality. Use when asked to "apply best practices", "security audit", "modernize code", "code quality review", or "check for vulnerabilities".

Ir para a instalação

Repositório: mkurman/zorai
Última atividade na origem: 5 de maio de 2026 às 10:23
Idioma detectado do SKILL.md: inglês
Estrelas: 320
Forks: 26

Opções de instalação

Por padrão, está selecionado o prompt que primeiro revisa a origem. Você pode mudar para um comando direto ou baixar uma cópia local.

Instalar com Codex ou Claude Copie este prompt, cole no Codex, Claude ou outro assistente e deixe que ele revise a página da skill e instale para você.

Um comando direto ignora o prompt de revisão. Verifique a origem antes de executá-lo.

npx skills add https://github.com/mkurman/zorai --skill best-practices

O comando permanece em uma só linha. Role horizontalmente para revisá-lo antes de copiar.

Prefere uma cópia local? Baixe os arquivos disponíveis atualmente no SkillsMP.

Revise os arquivos de origem

Leia o SKILL.md e os arquivos complementares exibidos pelo SkillsMP antes de decidir se vai instalar.

SKILL.md

Instruções da origem · Visualização somente leitura

Voltar à pesquisa Voltar à instalação

// ❌ Non-passive touch/wheel (may block scrolling)
element.addEventListener('touchstart', handler);
element.addEventListener('wheel', handler);

// ✅ Passive listeners (allows smooth scrolling)
element.addEventListener('touchstart', handler, { passive: true });
element.addEventListener('wheel', handler, { passive: true });

// ✅ If you need preventDefault, be explicit
element.addEventListener('touchstart', handler, { passive: false });

// ❌ Errors in production
console.log('Debug info'); // Remove in production
throw new Error('Unhandled'); // Catch all errors

// ✅ Proper error handling
try {
  riskyOperation();
} catch (error) {
  // Log to error tracking service
  errorTracker.captureException(error);
  // Show user-friendly message
  showErrorMessage('Something went wrong. Please try again.');
}

class ErrorBoundary extends React.Component {
  state = { hasError: false };
  
  static getDerivedStateFromError(error) {
    return { hasError: true };
  }
  
  componentDidCatch(error, info) {
    errorTracker.captureException(error, { extra: info });
  }
  
  render() {
    if (this.state.hasError) {
      return <FallbackUI />;
    }
    return this.props.children;
  }
}

// Usage
<ErrorBoundary>
  <App />
</ErrorBoundary>

// Catch unhandled errors
window.addEventListener('error', (event) => {
  errorTracker.captureException(event.error);
});

// Catch unhandled promise rejections
window.addEventListener('unhandledrejection', (event) => {
  errorTracker.captureException(event.reason);
});

// ❌ Source maps exposed in production
// webpack.config.js
module.exports = {
  devtool: 'source-map', // Exposes source code
};

// ✅ Hidden source maps (uploaded to error tracker)
module.exports = {
  devtool: 'hidden-source-map',
};

// ✅ Or no source maps in production
module.exports = {
  devtool: process.env.NODE_ENV === 'production' ? false : 'source-map',
};

// ❌ Blocking script
<script src="heavy-library.js"></script>

// ✅ Deferred script
<script defer src="heavy-library.js"></script>

// ❌ Blocking CSS import
@import url('other-styles.css');

// ✅ Link tags (parallel loading)
<link rel="stylesheet" href="styles.css">
<link rel="stylesheet" href="other-styles.css">

// ❌ Handler on every element
items.forEach(item => {
  item.addEventListener('click', handleClick);
});

// ✅ Event delegation
container.addEventListener('click', (e) => {
  if (e.target.matches('.item')) {
    handleClick(e);
  }
});

// ❌ Memory leak (never removed)
const handler = () => { /* ... */ };
window.addEventListener('resize', handler);

// ✅ Cleanup when done
const handler = () => { /* ... */ };
window.addEventListener('resize', handler);

// Later, when component unmounts:
window.removeEventListener('resize', handler);

// ✅ Using AbortController
const controller = new AbortController();
window.addEventListener('resize', handler, { signal: controller.signal });

// Cleanup:
controller.abort();

<!-- ❌ Invalid HTML -->
<div id="header">
<div id="header"> <!-- Duplicate ID -->

<ul>
  <div>Item</div> <!-- Invalid child -->
</ul>

<a href="/"><button>Click</button></a> <!-- Invalid nesting -->

<!-- ✅ Valid HTML -->
<header id="site-header">
</header>

<ul>
  <li>Item</li>
</ul>

<a href="/" class="button">Click</a>

<!-- ❌ Non-semantic -->
<div class="header">
  <div class="nav">
    <div class="nav-item">Home</div>
  </div>
</div>
<div class="main">
  <div class="article">
    <div class="title">Headline</div>
  </div>
</div>

<!-- ✅ Semantic HTML5 -->
<header>
  <nav>
    <a href="/">Home</a>
  </nav>
</header>
<main>
  <article>
    <h1>Headline</h1>
  </article>
</main>

<!-- ❌ Distorted images -->
<img src="photo.jpg" width="300" height="100">
<!-- If actual ratio is 4:3, this squishes the image -->

<!-- ✅ Preserve aspect ratio -->
<img src="photo.jpg" width="300" height="225">
<!-- Actual 4:3 dimensions -->

<!-- ✅ CSS object-fit for flexibility -->
<img src="photo.jpg" style="width: 300px; height: 200px; object-fit: cover;">

// ❌ Request on page load (bad UX, often denied)
navigator.geolocation.getCurrentPosition(success, error);

// ✅ Request in context, after user action
findNearbyButton.addEventListener('click', async () => {
  // Explain why you need it
  if (await showPermissionExplanation()) {
    navigator.geolocation.getCurrentPosition(success, error);
  }
});

<!-- Restrict powerful features -->
<meta http-equiv="Permissions-Policy" 
      content="geolocation=(), camera=(), microphone=()">

<!-- Or allow for specific origins -->
<meta http-equiv="Permissions-Policy" 
      content="geolocation=(self 'https://maps.example.com')">

name	best-practices
description	Apply modern web development best practices for security, compatibility, and code quality. Use when asked to "apply best practices", "security audit", "modernize code", "code quality review", or "check for vulnerabilities".
license	MIT
tags	["gsd-2","skills","best-practices","security","compliance"]
metadata	{"author":"web-quality-skills","version":"1.0"}

name	best-practices
description	Apply modern web development best practices for security, compatibility, and code quality. Use when asked to "apply best practices", "security audit", "modernize code", "code quality review", or "check for vulnerabilities".
license	MIT
tags	["gsd-2","skills","best-practices","security","compliance"]
metadata	{"author":"web-quality-skills","version":"1.0"}

Tool	Purpose
`npm audit`	Dependency vulnerabilities
SecurityHeaders.com	Header analysis
W3C Validator	HTML validation
Lighthouse	Best practices audit
Observatory	Security scan

best-practices

Opções de instalação

Revise os arquivos de origem

Deprecated APIs

Avoid these

Deprecated APIs

Avoid these

Event listener passive

Console & errors

No console errors

Error boundaries (React)

Global error handler

Source maps

Production configuration

Performance best practices

Avoid blocking patterns

Efficient event handlers

Memory management

Code quality

Valid HTML

Semantic HTML

Image aspect ratios

Permissions & privacy

Request permissions properly

Permissions policy

Audit checklist

Security (critical)

Compatibility

Code quality

UX

Tools

References

best-practices

Informações da origem

Opções de instalação

Revise os arquivos de origem

Mais deste repositório

Mais deste repositório

Deprecated APIs

Avoid these

Deprecated APIs

Avoid these

Event listener passive

Console & errors

No console errors

Error boundaries (React)

Global error handler

Source maps

Production configuration

Performance best practices

Avoid blocking patterns

Efficient event handlers

Memory management

Code quality

Valid HTML

Semantic HTML

Image aspect ratios

Permissions & privacy

Request permissions properly

Permissions policy

Audit checklist

Security (critical)

Compatibility

Code quality

UX

Tools

References