Agent Envelope Exchange (AEE): A Minimal JSON Envelope Format for Inter-Agent Communication

Agent Envelope Exchange (AEE) defines a minimal, transport- independent JSON envelope format for communication between autonomous AI agents, traditional services, and human participants. The envelope comprises 14 well-defined fields that provide message identity, typing, correlation, tracing, priority, and extensibility without prescribing payload semantics or transport mechanisms. AEE separates the concerns of message routing and lifecycle management (the envelope) from domain-specific meaning (intent schemas), enabling portable, composable, and auditable workflows across heterogeneous agent frameworks. This document specifies the envelope structure, validity rules, conformance levels, entity identifier conventions, a reserved intent namespace for protocol negotiation, and a referencing strategy that avoids envelope nesting.