Do Not Repeat Yourself (DRY) / Simplicity
Kind: tension
Record: tension:do-not-repeat-yourself-dry-simplicity
Canonical: Schema
"duplicate-code" (structural-core layer) is traded against "Simplicity" (human-factors layer) — a principle cannot be scope-separated from a quality, metric, or cost it competes with; resolve by measuring "Simplicity" and choosing an explicit operating point.
Listed in Tensions, after Do Not Repeat Yourself (DRY) / Locality of Behavior and before High Cohesion / Over-Specialization.