diff --git a/phases/linear-static-3d-euler-beam/index.json b/phases/linear-static-3d-euler-beam/index.json
index 8dc671f..6898af3 100644
--- a/phases/linear-static-3d-euler-beam/index.json
+++ b/phases/linear-static-3d-euler-beam/index.json
@@ -229,7 +229,10 @@
     {
       "step": 28,
       "name": "release-readiness",
-      "status": "pending"
+      "status": "completed",
+      "started_at": "2026-08-10T00:08:50+0900",
+      "completed_at": "2026-08-10T00:11:51+0900",
+      "summary": "Build/Test·Reference Verification·Physics Evaluation의 exact pass gate와 Steps 0-27 completion을 감사하고 44/44 must 요구조건을 acceptance·exact test/evidence·reference/analytical 근거·final disposition에 연결했으며 stale implementation aggregate header를 nonblocking으로 판정하고 limitations·accepted Minors·release notes를 기록해 internal ready-for-release로 인계함"
     }
   ],
   "created_at": "2026-08-09T01:35:55+0900"