diff --git a/.custodian-brief.md b/.custodian-brief.md
index 970541d..d24fd4c 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,11 +2,17 @@
 # Custodian Brief — activity-core
 
 **Domain:** infotech  
-**Last synced:** 2026-08-22 21:15 UTC  
+**Last synced:** 2026-08-22 22:02 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
+### Freeze controlled SBOM source references across retries
+Progress: 1/2 done  |  workplan_id: `409c06c0-65df-5eaf-8099-9b4e70185f19`
+
+**Open tasks:**
+- ! Promote after the Nexus dark canary  `036de401`
+
 ### Adopt the Glas profile-driven execution contract
 Progress: 4/5 done  |  workplan_id: `256dad13-28b4-5361-ab8a-7d1373a5d14b`