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seo

Skill4 starsChanged 8 months agoMITView on GitHub

Comprehensive SEO analysis for any website or business type. Performs full site audits, single-page deep analysis, technical SEO checks (crawlability, indexability, Core Web Vitals with INP), schema markup detection/validation/generation, content quality assessment (E-E-A-T framework per Dec 2025 update extending to all competitive queries), image optimization, sitemap analysis, and Generative Engine Optimization (GEO) for AI Overviews, ChatGPT, and Perplexity citations. Analyzes AI crawler accessibility (GPTBot, ClaudeBot, PerplexityBot), llms.txt compliance, brand mention signals, and passage-level citability. Industry detection for SaaS, e-commerce, local business, publishers, agencies. Triggers on: "SEO", "audit", "schema", "Core Web Vitals", "sitemap", "E-E-A-T", "AI Overviews", "GEO", "technical SEO", "content quality", "page speed", "structured data".

We split this skill into the rules it gives an agent

5 rules. 0 are common, 3 are distinctive, and 2 are very specific to this project.

  • 0

    Common

    Most of the 138 edited versions we read keep these.

  • 3

    Distinctive

    This author's own choices. Worth a look.

  • 2

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Very specific:

    When the user invokes /seo audit, delegate to subagents in parallel:

    line 61
  2. Distinctive:

    Create prioritized action plan (Critical → High → Medium → Low)

    line 65
  3. Very specific:

    Read references/quality-gates.md for thin content thresholds per page type.

    line 80
  4. Distinctive:

    Never recommend HowTo schema (deprecated Sept 2023)

    line 84
  5. Distinctive:

    All Core Web Vitals references use INP, never FID

    line 86

“Common” is measured: kept by at least 6 in 10 of the 138 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

SEO — Universal SEO Analysis Skill

Comprehensive SEO analysis across all industries (SaaS, local services, e-commerce, publishers, agencies). Orchestrates 25 specialized sub-skills and 15 subagents.

Quick Reference

CommandWhat it does
/seo audit <url>Full website audit with parallel subagent delegation
/seo page <url>Deep single-page analysis
/seo sitemap <url or generate>Analyze or generate XML sitemaps
/seo schema <url>Detect, validate, and generate Schema.org markup
/seo images <url>Image optimization analysis
/seo technical <url>Technical SEO audit (8 categories)
/seo content <url>E-E-A-T and content quality analysis
/seo geo <url>AI Overviews / Generative Engine Optimization
/seo plan <business-type>Strategic SEO planning
/seo programmatic [url|plan]Programmatic SEO analysis and planning
/seo competitor-pages [url|generate]Competitor comparison page generation
/seo hreflang [url]Hreflang/i18n SEO audit and generation
/seo agent <url>Agent Engine Optimization (AEO) audit - MCP, OpenAPI, llms.txt, SDK
/seo performance <url>Core Web Vitals + HTTP/3 + page performance analysis
/seo visual <url>Visual analysis, screenshots, mobile rendering, Visual Search readiness
/seo multiplatform <url>TikTok SEO + Visual Search + Reddit/Forum + Video SEO
/seo data-tools <url>GSC API + GA4 + PageSpeed Insights + CrUX + third-party data tools
/seo rank-tracker <keywords>Keyword ranking monitoring + SERP features + competitor tracking
/seo content-brief <keyword>SERP-driven content brief generation with competitor gap analysis
/seo backlinks <url>Backlink profile analysis + competitor link gap + outreach strategy
/seo monitor <url>SEO monitoring dashboard + alerts + competitor activity tracking
/seo report <url>Weekly/monthly/quarterly report generation + dashboard templates
/seo keywords <topic>Keyword research + competitor gap + topic clusters + prioritization
/seo competitors <url>Competitor SEO analysis + SWOT + keyword gap + strategy
/seo local <business>Local SEO audit + GBP optimization + NAP + review management

Orchestration Logic

When the user invokes /seo audit, delegate to subagents in parallel:

  1. Detect business type (SaaS, local, ecommerce, publisher, agency, other)
  2. Spawn subagents: seo-technical, seo-content, seo-schema, seo-sitemap, seo-performance, seo-visual
  3. Collect results and generate unified report with SEO Health Score (0-100)
  4. Create prioritized action plan (Critical → High → Medium → Low)

For individual commands, load the relevant sub-skill directly.

Industry Detection

Detect business type from homepage signals:

  • SaaS: pricing page, /features, /integrations, /docs, "free trial", "sign up"
  • Local Service: phone number, address, service area, "serving [city]", Google Maps embed
  • E-commerce: /products, /collections, /cart, "add to cart", product schema
  • Publisher: /blog, /articles, /topics, article schema, author pages, publication dates
  • Agency: /case-studies, /portfolio, /industries, "our work", client logos

Quality Gates

Read references/quality-gates.md for thin content thresholds per page type. Hard rules:

  • ⚠️ WARNING at 30+ location pages (enforce 60%+ unique content)
  • 🛑 HARD STOP at 50+ location pages (require user justification)
  • Never recommend HowTo schema (deprecated Sept 2023)
  • FAQ schema only for government and healthcare sites
  • All Core Web Vitals references use INP, never FID

Reference Files

Load these on-demand as needed — do NOT load all at startup:

  • references/cwv-thresholds.md — Current Core Web Vitals thresholds and measurement details
  • references/schema-types.md — All supported schema types with deprecation status
  • references/eeat-framework.md — E-E-A-T evaluation criteria (Sept 2025 QRG update)
  • references/quality-gates.md — Content length minimums, uniqueness thresholds
  • references/mcp-quality.md — MCP manifest structure and tool description scoring
  • references/agent-user-agents.md — Agent UA strings and robots.txt for agents
  • references/openapi-compliance.md — OpenAPI 3.1 spec requirements for agent integration
  • references/backlink-metrics.md — DR/DA/AS cross-reference, anchor text ratios, toxic link scoring, industry benchmarks
  • references/keyword-difficulty.md — KD score interpretation, industry benchmarks, search intent guide, DataForSEO Keywords API

Scoring Methodology

SEO Health Score (0-100)

Weighted aggregate of all categories:

CategoryWeight
Technical SEO25%
Content Quality25%
On-Page SEO20%
Schema / Structured Data10%
Performance (CWV)10%
Images5%
AI Search Readiness5%

Priority Levels

  • Critical: Blocks indexing or causes penalties (immediate fix required)
  • High: Significantly impacts rankings (fix within 1 week)
  • Medium: Optimization opportunity (fix within 1 month)
  • Low: Nice to have (backlog)

Sub-Skills

This skill orchestrates 25 specialized sub-skills:

  1. seo-audit — Full website audit with parallel delegation
  2. seo-page — Deep single-page analysis
  3. seo-technical — Technical SEO (8 categories)
  4. seo-content — E-E-A-T and content quality
  5. seo-schema — Schema markup detection and generation
  6. seo-images — Image optimization
  7. seo-sitemap — Sitemap analysis and generation
  8. seo-geo — AI Overviews / GEO optimization
  9. seo-plan — Strategic planning with templates
  10. seo-programmatic — Programmatic SEO analysis and planning
  11. seo-competitor-pages — Competitor comparison page generation
  12. seo-hreflang — Hreflang/i18n SEO audit and generation
  13. seo-agent — Agent Engine Optimization (AEO) audit
  14. seo-performance — Core Web Vitals and page performance analysis
  15. seo-visual — Visual analysis, screenshots, and mobile rendering
  16. seo-multiplatform — Multi-platform SEO (TikTok, Visual Search, Reddit, Video)
  17. seo-data-tools — GSC API, GA4, PageSpeed Insights, CrUX, third-party data
  18. seo-rank-tracker — Keyword ranking monitoring and SERP feature tracking
  19. seo-content-brief — SERP-driven content brief generation
  20. seo-backlinks — Backlink profile analysis, competitor link gap, outreach strategy
  21. seo-monitor — SEO monitoring, alerting, and competitor activity tracking
  22. seo-report — Weekly/monthly/quarterly report generation and dashboards
  23. seo-keyword-research — Keyword research, topic clustering, and prioritization
  24. seo-competitor-analysis — Comprehensive SEO competitive intelligence
  25. seo-local — Local SEO, Google Business Profile, NAP, reviews

Subagents

For parallel analysis during audits:

  • seo-technical — Crawlability, indexability, security, CWV
  • seo-content — E-E-A-T, readability, thin content
  • seo-schema — Detection, validation, generation
  • seo-sitemap — Structure, coverage, quality gates
  • seo-performance — Core Web Vitals measurement
  • seo-visual — Screenshots, mobile testing, above-fold
  • seo-data-tools — GSC/GA4/PSI data integration
  • seo-rank-tracker — Ranking and SERP feature tracking
  • seo-content-brief — Content brief generation
  • seo-backlinks — Backlink profile and competitor link gap
  • seo-monitor — Ranking/competitor/technical monitoring
  • seo-report — Report and dashboard generation
  • seo-keyword-research — Keyword research and topic clustering
  • seo-competitor-analysis — SEO competitive intelligence
  • seo-local — Local SEO, GBP, NAP, reviews

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