Agents Talk to Each Other: Build a Support Swarm with Peer-to-Peer Transfers

Part 4 of an Agentspan multi-agent strategy series introduces the swarm strategy, in which agents communicate peer-to-peer through automatically generated transfer tools rather than relying on a parent agent, fixed pipeline, or classifier to determine routing. Using a customer-support example with front-line, refund, and technical-support agents, it shows how an agent can redirect a request during execution, such as a refund specialist transferring a defective-product case to technical support for warranty handling. In Agentspan, setting `Strategy.SWARM` gives each participating agent transfer capabilities to its peers, while optional text-based handoff conditions can act as a fallback if no tool transfer occurs. The approach is contrasted with handoff and router strategies, which make an initial top-down routing decision but do not allow specialists to redirect cases themselves. Swarm workflows are described as durable server-side state machines that preserve transfer decisions across failures, and they can be composed with other strategies such as sequential pipelines or higher-level handoffs; the next installment will cover the fixed-turn round-robin strategy.

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