Agent-Skills.md

Agent Skills: Technical SEO

Use when auditing technical SEO — robots.txt, sitemap.xml, Core Web Vitals, crawlability, indexability.

UncategorizedID: fusengine/agents/seo-technical

Repository

fusengine/agents
FusengineLicense: MIT
345

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pnpm dlx add-skill https://github.com/Fusengine/claude-plugins/tree/HEAD/plugins/seo/skills/seo-technical

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plugins/seo/skills/seo-technical/SKILL.md

Skill Metadata

Name
seo-technical
Description
Use when auditing technical SEO — robots.txt, sitemap.xml, Core Web Vitals, crawlability, indexability.
<objective> Runs a technical SEO audit: fetches and validates robots.txt (`scripts/parse-robots.ts`) and sitemap.xml (`scripts/parse-sitemap.ts`), measures Core Web Vitals via a local Lighthouse wrapper (`scripts/check-cwv.ts` — LCP <2.5s, INP <200ms, CLS <0.1), verifies mobile-first signals, and checks HTTPS/HSTS/redirect chains plus indexability (robots.txt not blocking critical paths, no stray `noindex`, canonical pointing to an indexable URL, no `nofollow` on internal navigation). Does not cover content quality (seo-content), schema (seo-schema), or local-specific signals (seo-local). </objective>

Technical SEO

Workflow

  1. Fetch /robots.txt → scripts/parse-robots.ts
  2. Fetch /sitemap.xml → scripts/parse-sitemap.ts
  3. Run Lighthouse locally → scripts/check-cwv.ts <url>
  4. Verify mobile-first signals (viewport, responsive images)
  5. Check HTTPS, HSTS, redirects chains

Core Web Vitals (2026)

  • LCP: < 2.5s
  • INP: < 200ms (replaced FID March 2024)
  • CLS: < 0.1

Indexability Checks

  • robots.txt doesn't block critical paths
  • <meta name="robots"> not noindex on important pages
  • Canonical points to indexable URL
  • No nofollow on internal navigation

References

  • skills/seo/05-technical-seo/ (core-web-vitals, crawlability, mobile-first, structured-data-testing)