diff --git a/.sdlc/features/data-models/manifest.yaml b/.sdlc/features/data-models/manifest.yaml
index c399c90..418ed9d 100644
--- a/.sdlc/features/data-models/manifest.yaml
+++ b/.sdlc/features/data-models/manifest.yaml
@@ -13,8 +13,10 @@ artifacts:
         status: pending
         path: audit.md
     design:
-        status: pending
+        status: approved
         path: design.md
+        approved_by: user
+        approved_at: 2026-02-09T21:05:16.234073141Z
     qa_plan:
         status: pending
         path: qa-plan.md
diff --git a/.sdlc/state.yaml b/.sdlc/state.yaml
index ca671af..a418b10 100644
--- a/.sdlc/state.yaml
+++ b/.sdlc/state.yaml
@@ -8,9 +8,9 @@ active_work:
         - slug: task-management-ui
           phase: draft
 blocked: []
-last_updated: 2026-02-09T21:05:02.517725721Z
-last_action: CREATE_FEATURE
-last_actor: cli
+last_updated: 2026-02-09T21:05:16.23471008Z
+last_action: APPROVE_ARTIFACT
+last_actor: user
 history:
     - timestamp: 2026-02-09T21:04:37.081727351Z
       action: CREATE_FEATURE
@@ -32,3 +32,8 @@ history:
       feature: task-management-ui
       actor: cli
       result: success
+    - timestamp: 2026-02-09T21:05:16.234705481Z
+      action: APPROVE_ARTIFACT
+      feature: data-models
+      actor: user
+      result: success