go-structural-qualitylisted

# Go Structural Quality Judge whole-diff structure with a **deletion test** and one realistic change simulation. For a delegated Decision or Review, or when the active artifact requires its result interface, load the [shared specialist contract](../../contracts/specialist-contract.md). For every added abstraction, layer, file, compatibility shim, or parallel path, record its present responsibility, where its complexity returns if deleted, and which owners and files the next realistic change would touch with and without it. An interface with one adapter is not justified merely by hiding the adapter; it must reduce current complexity or protect a real dependency direction. A one-use helper survives when it uniquely carries a protocol or ownership constraint. Split responsibility, stale surfaces, and parallel execution paths remain collapse candidates. A Decision selects the least structure that owns the current responsibility. A Review tries to delete or collapse each candidate and rejects it only when the simulation exposes higher locality or deletion cost. Complete when every added structure passes both tests, each responsibility has one owner, and no superseded execution path remains.