Reilly Model Routing Protocol (RMRP): A Framework for Policy-Governed, Auditable AI Model Routing

This document specifies the Reilly Model Routing Protocol (RMRP), a framework for policy-governed, auditable routing of inference requests across heterogeneous artificial intelligence (AI) model environments. RMRP defines the structural metadata, routing policy declaration, execution semantics, audit trail requirements, and cost attribution mechanisms necessary to govern how inference requests are directed to AI models in multi-model deployments. The protocol is AI-provider agnostic and operates independently of any specific model architecture, inference runtime, vendor implementation, or transport layer. RMRP addresses the absence of a standardized protocol-layer specification governing how routing decisions are declared, transmitted, logged, and enforced across AI model deployments at organizational scale.