Section 1

Enterprise AI Architecture

Section 1 gives the claims assistant, the system every chapter of Volume 11 builds on, interfaces that survive production. It draws the reference architecture and its authority boundary, prices the workload at September 2026 list prices, and puts an LLM gateway between the assistant and its model providers. It then designs the three interfaces that fail first under load: an API for an intake job that outlasts the gateway's timeout, event consumers that must apply each effect exactly once through crashes and redelivery, and service boundaries that fit a 2-second budget for the first token.