12-layer engineering stack for production AI agents derived from 400+ builds
MaryamMiradi · x · 2026-08-31
Based on experience building 400+ production AI agents, the author outlines a 12-layer engineering stack spanning from context to continuous learning. By building a Medical Emergency Department agent system and stress-testing it, the author identifies that failures stem from missing engineering layers, detailing the first three: Business Understanding, Data Understanding, and Knowledge Engineering.
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