SEO: Universal SEO Analysis Skill
Comprehensive SEO analysis across all industries (SaaS, local services, e-commerce, publishers, agencies). Orchestrates 12 specialized sub-skills and 7 subagents (+ optional extension sub-skills like seo-dataforseo).
When to Use
- Use when the user asks for a full SEO audit or broad SEO strategy.
- Use as the umbrella entry point when multiple SEO dimensions are in scope.
- Use when the task spans technical SEO, content, schema, sitemaps, and AI search readiness together.
Quick Reference
| Command | What 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 (9 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 dataforseo [command] | Live SEO data via DataForSEO (extension) | |
/seo image-gen [use-case] <description> | AI image generation for SEO assets (extension) |
Orchestration Logic
When the user invokes /seo audit, delegate to subagents in parallel:
- Detect business type (SaaS, local, ecommerce, publisher, agency, other)
- Spawn subagents: seo-technical, seo-content, seo-schema, seo-sitemap, seo-performance, seo-visual, seo-geo
- Collect results and generate unified report with SEO Health Score (0-100)
- 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 for Google rich results: only government and healthcare sites (Aug 2023 restriction); existing FAQPage on commercial sites -> flag Info priority (not Critical), noting AI/LLM citation benefit; adding new FAQPage -> not recommended for Google benefit
- 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 detailsreferences/schema-types.md: All supported schema types with deprecation statusreferences/eeat-framework.md: E-E-A-T evaluation criteria (Sept 2025 QRG update)references/quality-gates.md: Content length minimums, uniqueness thresholds
Scoring Methodology
SEO Health Score (0-100)
Weighted aggregate of all categories:
| Category | Weight |
|---|---|
| Technical SEO | 22% |
| Content Quality | 23% |
| On-Page SEO | 20% |
| Schema / Structured Data | 10% |
| Performance (CWV) | 10% |
| AI Search Readiness | 10% |
| Images | 5% |
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 12 specialized sub-skills (+ 2 extensions):
- seo-audit -- Full website audit with parallel delegation
- seo-page -- Deep single-page analysis
- seo-technical -- Technical SEO (9 categories)
- seo-content -- E-E-A-T and content quality
- seo-schema -- Schema markup detection and generation
- seo-images -- Image optimization
- seo-sitemap -- Sitemap analysis and generation
- seo-geo -- AI Overviews / GEO optimization
- seo-plan -- Strategic planning with templates
- seo-programmatic -- Programmatic SEO analysis and planning
- seo-competitor-pages -- Competitor comparison page generation
- seo-hreflang -- Hreflang/i18n SEO audit and generation
- seo-dataforseo -- Live SEO data via DataForSEO MCP (extension)
- seo-image-gen -- AI image generation for SEO assets via Gemini (extension)
Subagents
For parallel analysis during audits:
seo-technical-- Crawlability, indexability, security, CWVseo-content-- E-E-A-T, readability, thin contentseo-schema-- Detection, validation, generationseo-sitemap-- Structure, coverage, quality gatesseo-performance-- Core Web Vitals measurementseo-visual-- Screenshots, mobile testing, above-foldseo-geo-- AI crawler access, llms.txt, citability, brand mention signalsseo-dataforseo-- Live SERP, keyword, backlink, local SEO data (extension, optional)seo-image-gen-- SEO image audit and generation plan (extension, optional)
Error Handling
| Scenario | Action |
|---|---|
| Unrecognized command | List available commands from the Quick Reference table. Suggest the closest matching command. |
| URL unreachable | Report the error and suggest the user verify the URL. Do not attempt to guess site content. |
| Sub-skill fails during audit | Report partial results from successful sub-skills. Clearly note which sub-skill failed and why. Suggest re-running the failed sub-skill individually. |
| Ambiguous business type detection | Present the top two detected types with supporting signals. Ask the user to confirm before proceeding with industry-specific recommendations. |
Limitations
- Use this skill only when the task clearly matches the scope described above.
- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.