Research: seo

Cached research evidence for seo (not authority).

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Search engine optimization: technical (crawlability/indexability), on-page (meta, headings, structure), structured data (JSON-LD/schema), mobile-friendliness, perf signals. Trigger: “optimize for SEO”, “improve search ranking”, “fix meta tags”. 30+ requirements from Lighthouse.

Target agents: antigravity, claude-code, codex, crush, cursor, gemini-cli, github-copilot, grok, opencode.

Curated install-now-after-trust-gate / curated-trust-gated. MIT licensed. Source by addyosmani (Chrome DevTools / web performance expert) with 2.4k GitHub stars. Unofficial collection encoding wisdom from 150+ Lighthouse audits, real-world perf engineering, WCAG 2.2, modern SEO. Stack-agnostic (React/Vue/Svelte/Next/Nuxt/Astro/plain). Skills activate on matching prompts. No specific per-skill hooks noted in config; provenance via verified npx command. Popular, reputable maintainer reduces baseline risk; still follow general audit-before-promotion guidance.

npx skills add addyosmani/web-quality-skills --skill seo -y -g -a antigravity claude-code codex crush cursor gemini-cli github-copilot grok opencode. status=install-now-after-trust-gate; selector=named (group install supports multiple). Supports Claude plugin, Codex marketplace, Gemini extensions, manual copy.

addyosmani (github.com/addyosmani/web-quality-skills). MIT License. Insights from Chrome DevTools team, web perf experts, a11y advocates. 2.4k stars, 216 forks. Resources link to Lighthouse, web.dev, WCAG, Agent Skills spec.

Other skills in same bundle (e.g. web-quality-audit; ai-seo or content-strategy skills; general SEO tooling); general Lighthouse/web.dev guidance; framework-specific perf/a11y plugins; other curated quality skills like chrome-devtools-*.

> Web-augmented research; evidence only, not authority. Authoring catalog MDX is authoritative for install metadata.