diff --git a/.planning/STATE.md b/.planning/STATE.md
index 51877da..c623cb4 100644
--- a/.planning/STATE.md
+++ b/.planning/STATE.md
@@ -2,9 +2,9 @@
 gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
-status: ready_to_plan
-stopped_at: Phase 04 complete (4/4) — ready to discuss Phase 5
-last_updated: 2026-09-18T12:23:27.307Z
+status: planning
+stopped_at: Phase 5 context gathered
+last_updated: "2026-09-18T13:23:21.558Z"
 last_activity: 2026-09-18
 progress:
   total_phases: 15
@@ -138,6 +138,6 @@ Items acknowledged and carried forward from previous milestone close:
 
 ## Session Continuity
 
-Last session: 2026-09-18T12:13:20.925Z
-Stopped at: Completed 04-04-PLAN.md
-Resume file: None
+Last session: 2026-09-18T13:23:21.535Z
+Stopped at: Phase 5 context gathered
+Resume file: .planning/phases/05-data-layer-full-fidelity/05-CONTEXT.md