Architecture Practice Methods

Aug 8, 2026 · Artificial Intelligence

Agent Architecture: Why Layer Count Misses the Point — Google's 4-Layer Model

The article argues that the number of layers in AI agent architecture is less important than clear boundaries, analyzing Google Cloud's four-layer reference model — Interaction Channel, Agent Core, Standardized Integration, and Backend Systems — which explains how agents understand tasks, invoke enterprise capabilities, and integrate with existing IT systems.