diff --git a/conductor/tracks/test_stabilization_20260302/plan.md b/conductor/tracks/test_stabilization_20260302/plan.md
index 349ccf2..9a580ae 100644
--- a/conductor/tracks/test_stabilization_20260302/plan.md
+++ b/conductor/tracks/test_stabilization_20260302/plan.md
@@ -69,5 +69,5 @@
     - [x] HOW: Markdown editing. Add sections explicitly banning arbitrary `unittest.mock.patch` on core infra for Tier 3 workers.
     - [x] SAFETY: Keep formatting clean.
 - [x] Task: Full Suite Validation & Warning Cleanup [5401fc7]
-- [~] Task: Final Artifact Isolation Verification
-- [ ] Task: Conductor - User Manual Verification 'Phase 4: Documentation & Final Verification' (Protocol in workflow.md)
+- [x] Task: Final Artifact Isolation Verification [7c70f74]
+- [~] Task: Conductor - User Manual Verification 'Phase 4: Documentation & Final Verification' (Protocol in workflow.md)