General
Your Architecture Docs Are Lying to You (And AI Agents Are Making It Worse)
Ask any team for their architecture diagram. Then go read their Terraform state, their Helm charts, their CI/CD pipeline configs. Compare the two. They will not match. They never do. This gap has a name in research circles: architecture erosion, architectural drift, and it has existed since the first team drew a box-and-arrow diagram and then shipped code that didn't follow it.
The gap nobody closed
Architecture research gave us Architecture Decision Records (ADRs): lightweight, versioned documents that capture why a system looks the way it does. Good idea. Widely adopted. Almost universally abandoned three sprints after a project starts, because nothing forces an ADR to stay in sync with what's actually deployed.DevOps research gave us Infrastructure as Code, GitOps, and continuous deployment pipelines that can reshape a running system dozens of times a day. Powerful. But IaC treats infrastructure as configuration, not as architecture: a Terraform diff doesn't ask "does this violate a documented constraint," it just applies.A 2018 systematic mapping study on IaC research (Rahman et al.) flagged this directly: most IaC work focuses on defect prediction and testing, almost none on architectural traceability. A 2025 paper introducing the ADR-E framework tried to make architectural decisions "explainable," but explainability inside a document still doesn't reach into the pipeline that's supposed to obey it. And a mapping study on continuous architecting with microservices and DevOps (Bogner et al.) found the same thing from the other direction: teams doing continuous deployment have almost no tooling that checks deployed reality against intended architecture.
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