Deploying multi-agent systems across distinct physical networks introduces immediate routing constraints. While agents communicating within a single local network or a unified VPC operate seamlessly, extending that swarm across public internets introduces Network Address Translation (NAT) and strict stateful firewalls. These network boundaries were designed under a client-server paradigm where human-operated devices initiate outbound requests to public-facing static IP addresses. AI agents, however, are often transient processes running in userspace without persistent public IP addresses. When an agent running on a local development machine needs to receive a task delegation from an agent on an AWS EC2 instance, the local router’s NAT drops the unsolicited inbound connection because there is no existing state table entry authorizing the traffic. Engineers typically resolve this restriction by elevating the communication to the application layer using centralized message brokers or HTTP gateways.…