Stages 5 through 7 of the DSCRI-AGDC pipeline (Indexing, Annotation, Grounding) where the primary audience is the ranking/annotation/retrieval system and the gating condition is verifiable relevance.

Jason Barnard defines the Algorithm Phase as the segment of the DSCRI-AGDC pipeline where content is processed, tagged, and evaluated for trustworthiness. At Indexing (Stage 5), content enters the search index with structural metadata. At Annotation (Stage 6), content is tagged across 24+ dimensions including entity associations, topical authority, and temporal relevance. At Grounding (Stage 7), LLMs verify retrieved content against their parametric knowledge before including it in responses. This is where GEO operates - and where most GEO practitioners make the mistake of optimizing only at this stage without addressing the Bot Phase foundation. The Algorithm Phase maps to UCD's Credibility (C) dimension and Phase 2 of the Zero-Risk Year.

DSCRI-AGDC Stages 5-7 (Indexing → Annotation → Grounding). Primary audience: algorithms. Gate: verifiable relevance. Maps to UCD Credibility (C) and Zero-Risk Year Phase 2.