<cleanup_preconditions> Cleanup requires all of: complete inventory, restorable backup, explicit write approval, successful current lint, fresh status proving GRACE 4 with no integrity errors, verified generated coverage, git availability/worktree inspection, recorded porcelain output when applicable, exact proposed paths, separate explicit cleanup approval, and separate dirty or non-git risk acknowledgement when applicable. A missing gate means no cleanup. </cleanup_preconditions>
<cleanup_failure_rule> If validation, git inspection, move, archive, or delete fails, stop immediately and state: "Legacy GRACE 3 artifacts remain untouched unless the failure output explicitly lists a completed move." Never retry destructive cleanup automatically. </cleanup_failure_rule>