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Full website SEO audit with parallel subagent delegation. Crawls up to 500 pages, detects business type, delegates to 6 specialists, generates health score. Use when user says "audit", "full SEO check", "analyze my site", or "website health check".
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Agent Engine Optimization (AEO) - audit whether AI agents can discover, understand, and call your product without human assistance. Checks MCP server presence and quality, OpenAPI spec discoverability, llms.txt agent profile, SDK availability, CLI tool discoverability, and developer docs machine-readability. Use when user says "AEO", "agent-friendly", "MCP server", "agent discovery", "AI agent SEO", "llms.txt", "tool use", "agent-readable".
Backlink profile analysis, competitor link gap discovery, outreach strategy generation, internal link optimization, and link quality scoring. Use when user says "backlinks", "link building", "outreach", "DR", "domain rating", "referring domains", "anchor text", "link gap", "internal links".
Comprehensive SEO competitor analysis covering competitor identification, keyword overlap and gap analysis, content strategy reverse-engineering, backlink profile comparison, technical SEO benchmarking, and AI search visibility comparison. Use when user says "competitor analysis", "competitive SEO", "competitor keywords", "competitor audit", "SEO benchmark", or "competitive intelligence".
Generate comprehensive, SERP-driven content briefs for writers. Analyzes top-ranking competitors, identifies content gaps, specifies structure, word count, keywords, E-E-A-T requirements, AI citation readiness, and schema recommendations. Use when user says "content brief", "writing brief", "content outline", "article brief", or "create brief for".
Content quality and E-E-A-T analysis with AI citation readiness assessment. Use when user says "content quality", "E-E-A-T", "content analysis", "readability check", "thin content", or "content audit".
SEO data platform integration guide covering Google Search Console API, GA4 Data API, PageSpeed Insights API v5, CrUX API, and third-party data tools (Bright Data SERP, DataForSEO). Provides API usage patterns, data analysis methodologies, and reporting automation. Use when user says "Search Console", "GSC", "GA4", "analytics", "PageSpeed API", "CrUX", "SERP data", "DataForSEO", "Bright Data", or "SEO data".
| name | seo-audit |
| description | Full website SEO audit with parallel subagent delegation. Crawls up to 500 pages, detects business type, delegates to 6 specialists, generates health score. Use when user says "audit", "full SEO check", "analyze my site", or "website health check". |
scripts/fetch_page.py to retrieve HTMLseo-technical — robots.txt, sitemaps, canonicals, Core Web Vitals, security headersseo-content — E-E-A-T, readability, thin content, AI citation readinessseo-schema — detection, validation, generation recommendationsseo-sitemap — structure analysis, quality gates, missing pagesseo-performance — LCP, INP, CLS measurementsseo-visual — screenshots, mobile testing, above-fold analysisMax pages: 500
Respect robots.txt: Yes
Follow redirects: Yes (max 3 hops)
Timeout per page: 30 seconds
Concurrent requests: 5
Delay between requests: 1 second
FULL-AUDIT-REPORT.md — Comprehensive findingsACTION-PLAN.md — Prioritized recommendations (Critical → High → Medium → Low)screenshots/ — Desktop + mobile captures (if Playwright available)| Category | Weight |
|---|---|
| Technical SEO | 25% |
| Content Quality | 25% |
| On-Page SEO | 20% |
| Schema / Structured Data | 10% |
| Performance (CWV) | 10% |
| Images | 5% |
| AI Search Readiness | 5% |
Use these rules for rapid page-level assessment. Each rule has an ID, pass condition, and severity.
| ID | Rule | Pass Condition | Severity |
|---|---|---|---|
| CS01 | Title tag exists | Present, 30-60 chars | Critical |
| CS02 | Title tag unique | No duplicates across site | High |
| CS03 | Meta description exists | Present, 120-160 chars | High |
| CS04 | H1 tag exists | Exactly one H1 per page | Critical |
| CS05 | H1 contains target keyword | Primary keyword in H1 | High |
| CS06 | Heading hierarchy valid | H1→H2→H3, no skips | Medium |
| CS07 | Canonical tag present | Self-referencing or correct canonical | Critical |
| CS08 | URL is clean | Lowercase, hyphens, no params, ≤75 chars | Medium |
| CS09 | Internal links present | ≥3 internal links per page | High |
| CS10 | Broken internal links | Zero 404s from internal links | Critical |
| CS11 | Open Graph tags | og:title, og:description, og:image present | Medium |
| CS12 | Language declared | lang attribute on <html> | Medium |
| CS13 | Viewport meta tag | width=device-width present | Critical |
| CS14 | No duplicate content | <15% similarity with other pages | High |
| CS15 | Keyword in first 100 words | Primary keyword appears early | Medium |
| ID | Rule | Pass Condition | Severity |
|---|---|---|---|
| PF01 | LCP ≤ 2.5s | CrUX p75 ≤ 2500ms | Critical |
| PF02 | INP ≤ 200ms | CrUX p75 ≤ 200ms | Critical |
| PF03 | CLS ≤ 0.1 | CrUX p75 ≤ 0.1 | Critical |
| PF04 | TTFB ≤ 800ms | Server responds in ≤800ms | High |
| PF05 | Total page weight ≤ 1.5MB | Compressed transfer size | High |
| PF06 | JS bundle ≤ 300KB | Compressed JS total | High |
| PF07 | No render-blocking resources | Critical CSS inlined, JS deferred | Medium |
| PF08 | Images lazy-loaded | Below-fold images use loading="lazy" | Medium |
| PF09 | HTTP/2 or HTTP/3 | Protocol upgrade from HTTP/1.1 | Medium |
| PF10 | Compression enabled | gzip or brotli on text resources | High |
| PF11 | Browser caching | Cache-Control headers on static assets | Medium |
| PF12 | No excessive redirects | ≤1 redirect per URL | Medium |
| ID | Rule | Pass Condition | Severity |
|---|---|---|---|
| LK01 | No broken outbound links | Zero 404/5xx from external links | High |
| LK02 | No orphan pages | Every page has ≥1 internal link to it | High |
| LK03 | Reasonable link depth | All pages ≤3 clicks from homepage | Medium |
| LK04 | No excessive outbound links | ≤100 outbound links per page | Medium |
| LK05 | Anchor text descriptive | No "click here" or empty anchors | Medium |
| LK06 | Nofollow used correctly | UGC/sponsored links marked | Medium |
| LK07 | Sitemap links match live pages | All sitemap URLs return 200 | Critical |
| LK08 | Breadcrumbs present | BreadcrumbList on subpages | Medium |
| LK09 | No redirect chains | Max 1 hop per redirect | High |
| LK10 | Footer/nav links functional | All nav links resolve | Critical |
| LK11 | Pagination correct | rel="next"/"prev" or load-more | Low |
| LK12 | Hreflang reciprocal | Return links present if hreflang used | High |
| ID | Rule | Pass Condition | Severity |
|---|---|---|---|
| IM01 | Alt text on all images | Non-decorative images have alt | Critical |
| IM02 | Alt text descriptive | 10-125 chars, not "image1.jpg" | High |
| IM03 | Modern format used | WebP or AVIF (not PNG/JPG for photos) | Medium |
| IM04 | Images properly sized | No images wider than container | Medium |
| IM05 | Responsive images | srcset/sizes attributes present | Medium |
| IM06 | File size reasonable | Hero ≤200KB, content ≤100KB, thumb ≤50KB | High |
| IM07 | Explicit dimensions | width/height attributes set (CLS prevention) | High |
| IM08 | No broken images | All img src return 200 | Critical |
| IM09 | Lazy loading below fold | loading="lazy" on non-critical images | Medium |
| IM10 | Image filenames descriptive | "blue-widget.webp" not "IMG_3847.jpg" | Low |
| ID | Rule | Pass Condition | Severity |
|---|---|---|---|
| SC01 | HTTPS everywhere | No mixed content, valid SSL cert | Critical |
| SC02 | HSTS header | Strict-Transport-Security present | High |
| SC03 | X-Content-Type-Options | nosniff header present | Medium |
| SC04 | X-Frame-Options | DENY or SAMEORIGIN | Medium |
| SC05 | CSP header | Content-Security-Policy present | Medium |
| SC06 | No exposed secrets | No API keys/passwords in source | Critical |
| SC07 | SSL cert valid | Not expired, correct domain | Critical |
| SC08 | HTTP→HTTPS redirect | 301 redirect from HTTP to HTTPS | Critical |
| SC09 | No open directory listing | Directory browsing disabled | High |
| SC10 | Secure cookies | HttpOnly + Secure flags on cookies | Medium |
| ID | Rule | Pass Condition | Severity |
|---|---|---|---|
| AI01 | AI crawlers allowed | GPTBot, ClaudeBot, PerplexityBot not blocked | High |
| AI02 | llms.txt present | /llms.txt exists with structured content | Medium |
| AI03 | Answer-first content | Direct answer in first 200 words | High |
| AI04 | Self-contained answer blocks | 134-167 word blocks for key topics | High |
| AI05 | Question-based headings | H2/H3 match search queries | Medium |
| AI06 | Statistics with sources | Data points cited with attribution | Medium |
| AI07 | Author with credentials | Person schema + bio with expertise | High |
| AI08 | Entity presence | Brand on Wikipedia/Reddit/YouTube | Medium |
| AI09 | SSR for key content | Content visible without JS execution | Critical |
| AI10 | Structured data coverage | Schema on ≥80% of content pages | Medium |
| ID | Rule | Pass Condition | Severity |
|---|---|---|---|
| CQ01 | No thin pages | ≥300 words for content pages | High |
| CQ02 | Readability appropriate | Flesch Reading Ease 60-70 (general), adjust for audience | Medium |
| CQ03 | Publication date visible | Date published and/or last updated shown | Medium |
| CQ04 | Author attribution | Named author with bio link | High |
| CQ05 | External citations | ≥2 authoritative external sources cited | Medium |
| CQ06 | No keyword stuffing | Primary keyword density 0.5-2.5% | High |
| CQ07 | Unique value proposition | Content not duplicated from elsewhere | Critical |
| CQ08 | Multimedia present | ≥1 image/video per 500 words | Medium |
| CQ09 | Table of contents | Present on pages ≥1500 words | Low |
| CQ10 | No outdated content | Last updated within content type's refresh cycle | Medium |
| CQ11 | Mobile content parity | Same content on mobile and desktop | High |
Total: 80 core rules across 7 categories. Use these for rapid assessment; see individual sub-skills for deeper analysis.