ai-agents-routing-layers-when-architecting-an-agent-that-must-handle-cost-c-95cdf104

THEN Implement three separate routing layers: (1) Model routing – use cost-efficient models for routine work, escalate to stronger models only for complex/risky tasks with cost logging; (2) Parallel routing – decide whether a larger goal stays sequential or splits into governed branches, each with its own budget and model/service route; (3) Marketplace routing – always use execute(task, input, constraints) for external calls to let Agent OS select providers, apply budget/trust constraints, and return receipts.