Requirements
- Target platform
- OpenClaw
- Install method
- Manual import
- Extraction
- Extract archive
- Prerequisites
- OpenClaw
- Primary doc
- SKILL.md
Build, debug, and deploy websites using HTML, CSS, JavaScript, and modern frameworks following production best practices.
Build, debug, and deploy websites using HTML, CSS, JavaScript, and modern frameworks following production best practices.
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.
NeedSeeHTML/CSS issueshtml-css.mdJavaScript patternsjavascript.mdReact/Next.js/frameworksframeworks.mdDeploy to productiondeploy.mdPerformance/SEO/a11yperformance.md
DOCTYPE matters โ Missing <!DOCTYPE html> triggers quirks mode; layouts break unpredictably CSS specificity beats cascade โ .class overrides element selectors regardless of order === not == โ Type coercion causes "0" == false to be true Async/await in loops โ forEach doesn't await; use for...of or Promise.all CORS is server-side โ No client-side fix; configure Access-Control-Allow-Origin on the server Responsive = viewport meta โ Without <meta name="viewport">, mobile renders desktop-width Form without preventDefault โ Page reloads; call e.preventDefault() in submit handler Images need dimensions โ Missing width/height causes layout shift (CLS penalty) HTTPS or blocked โ Mixed content (HTTP resources on HTTPS pages) gets blocked by browsers Environment variables leak โ NEXT_PUBLIC_* exposes to client; never prefix secrets
"Make it responsive" โ Mobile-first CSS with media queries; test at 320px, 768px, 1024px "Deploy to production" โ See deploy.md for Vercel/Netlify/VPS patterns "Fix CORS error" โ Server must send headers; proxy through same-origin if you can't control server "Improve performance" โ Lighthouse audit; focus on LCP, CLS, FID; lazy-load below-fold images "Add SEO" โ Title/description per page, semantic HTML, OG tags, sitemap.xml
Static content, fast builds โ Astro or plain HTML Blog/docs with MDX โ Astro or Next.js App Router Interactive app with auth โ Next.js or Remix Full SSR/ISR control โ Next.js Simple SPA, no SEO needed โ Vite + React/Vue
Code helpers, APIs, CLIs, browser automation, testing, and developer operations.
Largest current source with strong distribution and engagement signals.