The Agent Service Bus: The Most Important Infrastructure Nobody Is Building

Everyone is talking about AI models and agent platforms. Almost nobody is talking about the infrastructure that makes agents actually work together. In this second article of Arion Research's "Future Enterprise" series, we examine the Agent Service Bus, the most strategically important layer in the enterprise AI stack and the one getting the least attention. We break down the five functions it must perform, assess where current protocols (A2A, MCP) fall short, and explore who will build the missing pieces.