ClawHub

Web Development

Build, debug, and deploy websites with HTML, CSS, JavaScript, modern frameworks, and production best practices.

Audits

Pass
ClawScanPass

Agentic behavior and permission review.

Static analysisPass

Pattern checks against bundled files.

VirusTotalPass

Multi-engine malware detections and file reputation.

Install

openclaw skills install web

Quick Reference

NeedSee
HTML/CSS issueshtml-css.md
JavaScript patternsjavascript.md
React/Next.js/frameworksframeworks.md
Deploy to productiondeploy.md
Performance/SEO/a11yperformance.md

Critical Rules

  1. DOCTYPE matters — Missing <!DOCTYPE html> triggers quirks mode; layouts break unpredictably
  2. CSS specificity beats cascade — .class overrides element selectors regardless of order
  3. === not == — Type coercion causes "0" == false to be true
  4. Async/await in loops — forEach doesn't await; use for...of or Promise.all
  5. CORS is server-side — No client-side fix; configure Access-Control-Allow-Origin on the server
  6. Responsive = viewport meta — Without <meta name="viewport">, mobile renders desktop-width
  7. Form without preventDefault — Page reloads; call e.preventDefault() in submit handler
  8. Images need dimensions — Missing width/height causes layout shift (CLS penalty)
  9. HTTPS or blocked — Mixed content (HTTP resources on HTTPS pages) gets blocked by browsers
  10. Environment variables leak — NEXT_PUBLIC_* exposes to client; never prefix secrets

Common Requests

"Make it responsive" → Mobile-first CSS with media queries; test at 320px, 768px, 1024px "Deploy to production" → See deploy.md for Vercel/Netlify/VPS patterns "Fix CORS error" → Server must send headers; proxy through same-origin if you can't control server "Improve performance" → Lighthouse audit; focus on LCP, CLS, FID; lazy-load below-fold images "Add SEO" → Title/description per page, semantic HTML, OG tags, sitemap.xml

Framework Decision Tree

  • Static content, fast builds → Astro or plain HTML
  • Blog/docs with MDX → Astro or Next.js App Router
  • Interactive app with auth → Next.js or Remix
  • Full SSR/ISR control → Next.js
  • Simple SPA, no SEO needed → Vite + React/Vue