The three-layer quality control protocol ensuring entity infrastructure meets technical standards before deployment: L1 (schema validity), L2 (corroboration sufficiency), L3 (operational coherence). Verification gates prevent deployment of non-compliant infrastructure that would fail in production. L1a verifies OG-RAG compatibility; L1b verifies schema.org completeness. L2 verifies minimum corroboration thresholds are met. L3 verifies end-to-end citation behavior. Passing all three gates is the exit criterion from the build phase into the maintenance phase. Verification gate failures document technical debt in the engagement record.