DataFunTalk

Sep 15, 2026 · Industry Insights

AWS COA Open-Sourced: Semantic Layer Evolves into Agent Runtime Context Layer

AWS open-sourced Context Ontology Accelerator (COA) to bridge structured and unstructured data via AI-generated ontologies, governed metrics, and knowledge graphs served through MCP, signaling a shift from traditional semantic layers focused on unified metrics to agent-ready business context infrastructure combining ontologies, rules, and authorization for accurate, auditable agent decisions.