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      "summary": "The updated SEO library now contains all 26 user requested professional responsibilities, with the original numbering preserved.",
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      "summary": "Reviewed 9 September 2026. These 49 source records supplement, not replace, the baseline S01 to S52 register. Some sources overlap intentionally so each expansion role has a self contained authority trail.",
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        "D27 Patterns of trustworthy experimentation: preexperiment stage",
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        "D31 New AI visibility insights in Bing Webmaster Tools",
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        "D34 Sender Policy Framework (RFC 7208)",
        "D35 DomainKeys Identified Mail (RFC 6376)",
        "D36 DMARC (RFC 9989)",
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        "D38 DMARC failure reporting (RFC 9991)",
        "D39 Guidelines for representing your business on Google",
        "D40 Spam policies for Google web search",
        "D41 Application Security Verification Standard",
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      "summary": "Authoritative DNS, address family correctness, routing, TLS transport policy, Tailscale boundaries and external reachability.",
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      "summary": "A request's user agent text is a claim anyone can send. Store claimed_agent separately from verification_result, verification_method and verification_data_date.",
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      "url": "https://library.feedthejoe.com/reference/framework-google-ai-performance-2026/",
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      "summary": "Start with the actual property scope, permissions, reporting dates and available features. A domain property, URL prefix property and platform property do not automatically represent the same assets.",
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      "summary": "Google does not impose a fixed 50 to 60 character title requirement or a 140 to 160 character description requirement.",
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      "url": "https://library.feedthejoe.com/reference/framework-nextjs-metadata-validation/",
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      "id": "graph-systems/g03-cross-domain-operating-and-ownership-graph",
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      "id": "graph-systems/g04-entity-resolution-and-reconciliation-graph",
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      "id": "graph-systems/g09-document-passage-and-entity-graph",
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      "summary": "Which part of which document describes or supports an entity or concept?",
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      "shelf": "graph-systems",
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      "shelf": "graph-systems",
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      "url": "https://library.feedthejoe.com/graph-systems/g13-internal-link-and-navigation-graph/",
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      "shelf": "graph-systems",
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      "status": "Researched",
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      "kind": "researched",
      "summary": "What must load for the user and each tested consumer to observe the real content?",
      "url": "https://library.feedthejoe.com/graph-systems/g19-crawl-rendering-and-resource-dependency-graph/",
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      "id": "graph-systems/g20-structured-data-consistency-graph",
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      "summary": "Do all public representations describe the same approved entities and facts?",
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      "kind": "researched",
      "summary": "Can an assistant retrieve connected facts and their original supporting passages?",
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      "summary": "Which assertions conflict, and what prevents a confident conclusion?",
      "url": "https://library.feedthejoe.com/graph-systems/g30-contradiction-uncertainty-and-dispute-graph/",
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