Agentic Event-Driven Systems Architecture

A deep architectural guide to agentic event-driven systems — autonomous AI architectures where software agents continuously sense events, reason over shared state, take actions, and adapt in real time without human-in-the-loop orchestration. Covers an eight-layer reference architecture (event producers, streaming backbone, stateful processing, shared state, agent execution, orchestration, command emission, and observability), closed-loop control patterns, multi-agent coordination strategies, production principles (immutability, exactly-once semantics, deterministic replay, schema governance), and a comparison against batch pipelines, API orchestration, and workflow engines. Includes guidance on when the pattern is and isn't appropriate, plus scalability and governance considerations for enterprise deployments.