Enforcing ADRs with Deterministic Architecture Tests
TL;DR: Architecture Decision Records (ADRs) turn into dead documentation the moment a team accumulates more than thirty decisions. I stop this architectural drift by enforcing rules deterministically: automated architecture tests fail the build on broken boundaries, a one-line context index keeps rules inside human and AI context limits, and explicit anti-pattern definitions catch what static…
Architecture Decision Records (ADRs) can lose effectiveness when a team accumulates too many decisions. To combat this, enforce rules deterministically through automated architecture tests, a concise context index, and explicit anti-pattern definitions. When ADRs are merged into the codebase, they decay into passive historical records unless mechanical enforcement is in place.
The three-layer governance model includes deterministic gates (automated tests), a context index, and anti-pattern definitions. Deterministic architecture tests examine the codebase's structure, namespaces, and syntax trees to detect architectural violations early in the CI pipeline. These tests run quickly and provide clear, actionable error messages linked to the originating ADR.
Not all architectural decisions can be enforced via binary tests, so define anti-patterns for nuanced cases. By shifting ADRs from passive documentation to active governance layers, you maintain architectural integrity without overwhelming developers or AI reviewers.
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