Status: IN
The repo's architecture exhibits structural immunity to its own engineering defects: zero-coupling costs are invisible at runtime because each solution's correctness is independent, and the most prominent such cost — naming drift — serves no functional role at any layer. This means the architecture cannot be degraded by the class of inconsistencies it systematically produces; even adversarial naming errors would be absorbed without observable effect.
Depth-7 qualitative jump: from "defects are currently invisible" to "the architecture is structurally immune to this defect class" — a property of the system, not an observation about current state
Depends on (SL): zero-coupling-cost-invisible-at-runtime, names-serve-no-functional-role