SEO library — canonical master index

26-discipline expansion — 2026.09.09-d26: Route engineering, SEO, AI visibility and publication work through the discipline operating library. Read the master router, cross-discipline playbooks and public expertise layer. New role IDs do not change commercial tiers, pricing or the retirement of Tier 13. Baseline legacy review boundaries remain in force.

Edition 2026.09.09 · Generated navigation, not a certification of every legacy claim.

169 active Markdown documents: 27 new researched modules, nine rewritten core guides, this regenerated index, five targeted-patch legacy guides and 127 other retained legacy documents. The 146 unique original files are preserved separately with hashes. Tier 13 stays retired; no tiers were renumbered.

Start with the build reference, evidence rules and audit report. Current researched guidance overrides conflicting legacy material. A legacy file is useful background, not an instruction to deploy its code or accept its statistics.

New researched modules

Evidence governance and claim authorization Engine-specific discovery, training and user-access controls Google generative AI performance: current reporting contract Bing AI Performance and citation-share interpretation AI answer observation and controlled evaluation AI referrals, analytics channels and qualified outcomes SEO release contracts and reproducible acceptance tests URL lifecycle, canonical decisions and safe retirement Location-page evidence and genuine local utility Regional Search eligibility and policy differences Structured-data lifecycle and feature eligibility Commerce data consistency across page, feed and structured data Next.js metadata, streaming and rendering validation Crawler identity, logs and safe edge access Crawl payload budgets and content delivery Field performance and interaction acceptance First-party facts, provenance and reusable evidence Agent access, MCP and security boundaries Social and video platform properties in Search Console Migration contract, checkpoints and rollback Research maintenance and documentation drift control Client scope, tier applicability and acceptance Faceted navigation and crawl-space control Preferred Sources and publisher relationship design Titles, descriptions and preview copy without false limits Universal Search Delivery Framework — not a ranking formula SEO build reference: intake to production evidence

Rewritten core guides

Content delivery first — without false crawler absolutes Google AI Overviews and AI Mode — eligibility, controls and measurement AI citation engineering — controllable inputs and observable outcomes Schema types in 2026 — semantic validity versus search features ChatGPT Search — publisher access and measured referrals Search spam policy — scoped interpretation and operational controls Search Console analysis — current reports and defensible diagnostics GA4 implementation — current AI channels, scopes and outcome quality Next.js SEO implementation — versioned route contracts

Complete active-file directory

Audit and operating assets

Source register · Finding records · Coverage matrix · Tier applicability · Templates · Schema examples · Tools