diff --git a/machine-docs/REVIEW-mirror.md b/machine-docs/REVIEW-mirror.md
index fc76eb3..946d8d7 100644
--- a/machine-docs/REVIEW-mirror.md
+++ b/machine-docs/REVIEW-mirror.md
@@ -54,7 +54,9 @@ hedgedoc: NO `tests/hedgedoc/` (enrolled but untested — plan Phase 2 must auth
 Cold-verified from /srv/cc-ci/cc-ci-adv (fresh git pull). Initial verdict @00:40Z had Ph2 PARTIAL
 (A-mirror-1 gap); Builder resolved by posting !testme at 00:30Z; A-mirror-1 CLOSED @00:50Z.
 
-**Phase 4 operator deploy: CLEARED — Adversary verification complete for Ph1+Ph2+Ph3.**
+**Phase 4 deploy: CLEARED (Adversary verification complete for Ph1+Ph2+Ph3).**
+**Operator update @00:53Z:** Phase 4 gate changed — Builder will run the nixos-rebuild itself
+(not operator-gated). Adversary will verify deploy + Phase 5 after Builder claims Phase 4.
 
 #### Ph1 — 3 mirrors created: PASS ✓