A.16.2:19 - Review Matrix for Retreat Integrity

A reviewer can test retreat integrity with five questions:

1. Was the trigger explicit? If not, the retreat risks becoming retrospective narrative repair.
2. Were the affected claims updated? If the earlier route selection, endpoint admission, gate result, publication availability, current-use claim, evidence-use basis, or actual authority relation no longer applies, revise that exact dependent claim under its direct pattern.
3. Did valid witnesses survive? If all earlier grounding disappeared without reason, the retreat probably became erasure.
4. Was the move kind correctly named? Reopen, sketch-backoff, respecify, and retire solve different problems; confusing them obscures what actually changed.
5. If a branch was retired, was successor / no-successor status explicit? If not, the retirement record leaves unclear whether a successor exists.

The matrix is intentionally small: A.16.2 should keep retreat legible, not surround it with decorative procedure.