The video examines architectural patterns that enable sub‑agents to operate autonomously while remaining coordinated within a larger system. It contrasts hierarchical delegation, where a parent agent assigns tasks down a tree, with mediator‑based designs that centralize communication through a broker to reduce coupling. Event‑driven pipelines are highlighted for their scalability, allowing sub‑agents to react to streams of domain events without direct references. Micro‑service‑style decomposition is presented as a way to isolate sub‑agent logic into independent services, each exposing well‑defined APIs and leveraging container orchestration for resilience. The speaker also discusses plugin architectures that load sub‑agents at runtime, enabling extensibility without recompilation. Trade‑offs such as latency, fault isolation, state synchronization, and complexity of orchestration are evaluated, with recommendations on when to favor each pattern based on consistency requirements, deployment environments, and operational overhead.