Routing: Build the routing that maps requests and intermediate steps to the right agents, tools, and models, combining deterministic rules, classifiers, and LLM-based routing where each is appropriate; measure routing accuracy and cost, and make routing decisions observable and explainable. You will own the framework that routes requests to the right agents, composes new agents at runtime from a registry of capabilities, and coordinates their tools, state, and handoffs, so that these systems behave predictably, securely, and auditably under FedRAMP High and DoD IL4/IL5.