Motorway cut agent error rates from 1-in-8 to 1-in-50 with an eval pipeline.

AWS published the blueprint built with the used-car marketplace using Strands and AgentCore, also cutting issue detection from hours to minutes. Concrete before/after numbers on agent evals are rare. Most vendor content stops at an architecture diagram, so a 6x error reduction with a named customer is worth reading even through the marketing.