What a multi-agent system actually is

A multi-agent system sounds futuristic. In practice it's an org chart. There's an orchestrator — the executive — that takes a goal and decides who does what. Then there are specialists, each owning one slice: a campaign agent, an analytics agent, a content agent, an SEO agent.

The orchestrator doesn't do the work. It decomposes the goal into tasks and routes each to the right specialist, then rolls the results back into one view. The magic is in the boundaries — each agent has scoped tools and structured outputs, so its work is checkable, not just plausible-sounding prose.

The hard part isn't the model. It's the guardrails. Anything that spends budget or touches a customer needs deterministic checks around it. An agent that can confidently do the wrong thing at scale is worse than no agent at all.

Build it like a team you'd actually hire: clear roles, clear handoffs, someone accountable for the whole. The AI is the easy part once the structure is right.