Anhvu1107/all-agent-skill

SEO: Universal SEO Analysis Skill

Selective Reading Rule

Start with:

• references/usage-routing.md
• references/quality-checklist.md

Then load only the inherited docs, scripts, assets, or examples that match the user's actual task.

Selective Reading Rule

Start with:

• references/senior-master-standard.md

Then load only the references, scripts, assets, or examples needed for the user's actual task.

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:

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, seo-geo
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 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 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

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):

1. seo-audit -- Full website audit with parallel delegation
2. seo-page -- Deep single-page analysis
3. seo-technical -- Technical SEO (9 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-dataforseo -- Live SEO data via DataForSEO MCP (extension)
14. seo-image-gen -- AI image generation for SEO assets via Gemini (extension)

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-geo -- AI crawler access, llms.txt, citability, brand mention signals
• seo-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.