diff --git a/conductor/tracks/nagent_review_20260608/state.toml b/conductor/tracks/nagent_review_20260608/state.toml
index 1e1d49fa..8dbc9e85 100644
--- a/conductor/tracks/nagent_review_20260608/state.toml
+++ b/conductor/tracks/nagent_review_20260608/state.toml
@@ -188,7 +188,7 @@ phase_8 = { status = "completed", checkpointsha = "ffa21d5c", name = "Robustness
 phase_9 = { status = "completed", checkpointsha = "ad19be00", name = "Operating rules cluster (S8)" }
 phase_10 = { status = "completed", checkpointsha = "54e62b10", name = "Case-study methodology cluster (S9)" }
 phase_11 = { status = "completed", checkpointsha = "f53c82e6", name = "PEP case study cluster (S10)" }
-phase_12 = { status = "pending", checkpointsha = "", name = "Collisions case study cluster (S11)" }
+phase_12 = { status = "completed", checkpointsha = "db7d94de", name = "Collisions case study cluster (S11)" }
 phase_13 = { status = "pending", checkpointsha = "", name = "Refresh side artifacts (comparison_table, decisions, takeaways)" }
 phase_14 = { status = "pending", checkpointsha = "", name = "Format-commitment verification + final commit" }