Use this skill whenever the user is improving Core Web Vitals or page load performance, or mentions slow pages, PageSpeed Insights / Lighthouse failures, LCP/CLS/INP scores, bundle size, image/font optimization, or third-party script impact. Covers Core Web Vitals, image and font optimization, JavaScript bundle size, CSS build size, CDN caching, third-party JavaScript impact, and measurement tools. Skip for backend latency tuning, database query optimization, or CI build speed.
Use this skill whenever the user is building, reviewing, or preparing to launch any public-facing website or web app. SEO, LLMO, and agent-readiness are baseline requirements for every public site, not optional add-ons. Covers meta tags, Open Graph, JSON-LD structured data (including SoftwareApplication and Product types), robots.txt (including the Content-Signal directive), sitemap.xml, llms.txt (including agent instruction block and MCP declaration), AI crawler access (GPTBot, ClaudeBot, PerplexityBot), Markdown content negotiation for agents, Link response headers, Agent Skills index, A2A Agent Card, MCP server discovery, agent.json, pricing.md, and the "explicit absence beats silence" principle for agent-facing files. Trigger for marketing sites, landing pages, blogs, docs, and e-commerce stores; before any "launch" or "go live"; during pre-launch checklists; when the user mentions isitagentready.com, ora.run, agent-readiness, A2A, MCP discovery, Cloudflare Markdown for Agents, or wants AI agents (ChatGPT
Use this skill whenever the user is deploying a React/Vite single-page app to AWS, or mentions Amplify, CDK, or wiring up Lambda + API Gateway for a frontend. Covers Amplify hosting, custom domains, CDK backend (Lambda + API Gateway), SES email, CORS configuration, and environment variables. Skip for non-AWS hosts (Vercel, Netlify, Cloudflare Pages), pure backend services without an SPA, or server-rendered apps (Next.js SSR on Vercel).
Use this skill whenever the user installs, configures, or debugs Google Analytics 4, or mentions gtag.js, GTM, conversion tracking, e-commerce events, or a cookie/consent banner tied to analytics. Covers installation, event tracking, user properties, e-commerce, Consent Mode v2 for EU/UK visitors, SPA pageview tracking, and BigQuery export. Skip for other analytics products (Plausible, Mixpanel, PostHog, Segment), Universal Analytics (sunset 2024), or server-side-only tracking.
Use this skill whenever the user is building or reviewing any web UI. Accessibility is a baseline requirement, not a niche concern. Covers WCAG 2.2 AA, semantic HTML, ARIA patterns, keyboard navigation, focus management, color contrast, touch targets, forms, and testing with axe / screen readers. Trigger when generating any interactive component or page (forms, modals, menus, tables, navigation, layouts), before any "launch" or "go live", during pre-launch checklists, and whenever producing new HTML/JSX markup, even if the user does not explicitly mention a11y or WCAG. Skip for backend-only changes, CLI tools, or non-UI code.