Published onJune 16, 2026•7 min readAgentic AI Design Patterns — Part 4: Control, Multi-Agent & Productionhuman-in-the-loopragmulti-agentproductionlanggraphPart 4 covers patterns 07–15 — orchestration, safety, memory, RAG, and event-driven agents — plus how to move from runnable examples to production architecture.