diff --git a/.sdlc/features/data-models/manifest.yaml b/.sdlc/features/data-models/manifest.yaml
index 48c9b40..a506471 100644
--- a/.sdlc/features/data-models/manifest.yaml
+++ b/.sdlc/features/data-models/manifest.yaml
@@ -2,7 +2,7 @@ slug: data-models
 title: Core Data Models & Persistence
 created: 2026-02-09T21:04:37.081370329Z
 branch: feature/data-models
-phase: planned
+phase: ready
 phase_history:
     - phase: draft
       entered: 2026-02-09T21:04:37.081370329Z
@@ -12,6 +12,9 @@ phase_history:
       exited: 2026-02-09T21:05:57.037642715Z
     - phase: planned
       entered: 2026-02-09T21:05:57.037642715Z
+      exited: 2026-02-09T21:06:07.215048365Z
+    - phase: ready
+      entered: 2026-02-09T21:06:07.215048365Z
 artifacts:
     audit:
         status: pending
diff --git a/.sdlc/state.yaml b/.sdlc/state.yaml
index bb6824c..b9385c0 100644
--- a/.sdlc/state.yaml
+++ b/.sdlc/state.yaml
@@ -4,11 +4,12 @@ project:
 active_work:
     features:
         - slug: data-models
-          phase: planned
+          branch: feature/data-models
+          phase: ready
         - slug: task-management-ui
           phase: specified
 blocked: []
-last_updated: 2026-02-09T21:05:57.038252602Z
+last_updated: 2026-02-09T21:06:07.216218417Z
 last_action: TRANSITION
 last_actor: cli
 history:
@@ -62,3 +63,8 @@ history:
       feature: data-models
       actor: cli
       result: success
+    - timestamp: 2026-02-09T21:06:07.216216684Z
+      action: TRANSITION
+      feature: data-models
+      actor: cli
+      result: success