Multi-Agent Systems and Orchestration Strategy
Discover how to design multi-agent AI systems by understanding the roles of coordinators and specialists, recognizing when orchestration adds value, and applying provenance discipline to maintain clarity and reliability. This lesson helps you evaluate independent tasks, manage tool overload, prevent context pollution, and design effective handoffs to create auditable, scalable systems.
In the previous lesson, we placed each of Atlas’s tasks on the autonomy spectrum and found that a genuine agent was justified only for one capability, an investigator that chases down whatever is anomalous in a borderline loan application. That decision is not the end of the design work. A single agent and a multi-agent system are both “agentic” in the sense that the model decides its own next step, but they are not the same architecture, and the exam treats the choice between them as its own decision, with its own signals and its own failure modes.
This lesson goes one level deeper into the highest-autonomy end of the spectrum. We ask when a coordinator with specialist subagents is worth building, and how to keep such a system reliable once it exists. In this lesson, we will cover:
Why a multi-agent system is a further step up in cost and unpredictability, not a free upgrade
The concrete signals that tell you orchestration is earning its cost
The distinct roles of a coordinator and a specialist, and what each is responsible for
Provenance and scope discipline, the design habit that keeps a multi-agent system honest
How to design the handoff between coordinator and specialists
Multi-agent is a further step up the spectrum
It is tempting to treat “multi-agent system” as a fourth pattern sitting outside the spectrum from the previous lesson. It is not. A multi-agent system is what you get when a single agent’s job is split across several agents, each with a narrower scope, coordinated by one more agent whose job is to split the work and combine the results. Every cost that applies to a single agent still applies, and a new cost is added on top, the cost of coordination itself. ...