Orchestration Model

Centralized manager: understand task → break down into subtasks → select agents → track progress → merge results. Each specialized agent is modeled as a tool: call, pass parameters, get result—a unified abstraction provides extensibility and heterogeneity. The manager is a single point of failure and a bottleneck: Plan-and-Act shows that a weak planner limits the entire system, therefore the strongest model and best prompt go to the manager. Manager context is constrained: it holds an index of files and summaries, not the content. Forms: sequential coordination and parallel via message bus.

Related: [Interaction Topologies], [Proposer-Reviewer], [Failure Modes of Multi-Agent Systems]