Three-layer quality protocol before infrastructure deployment. L1 (schema): L1a checks OG-RAG compatibility (ontological relationships defined), L1b checks schema.org completeness (required properties present). L2 (corroboration): verifies ≥5 tier-1/2 sources per core claim. L3 (operational): tests actual citation behavior across AI systems. All three must pass before deployment. Document failures in engagement record as technical debt. Re-test quarterly to detect degradation. Gates prevent shipping non-functional infrastructure. Use automated validators where possible (schema.org validator, custom OG-RAG checker).