diff --git a/.custodian-brief.md b/.custodian-brief.md
index 957a51c..97813bb 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,16 +2,26 @@
 # Custodian Brief — net-kingdom
 
 **Domain:** infotech  
-**Last synced:** 2026-07-30 07:23 UTC  
+**Last synced:** 2026-08-08 21:22 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
+### Expand user-engine platform integrations beyond the Binky MVP
+Progress: 0/4 done  |  workplan_id: `9bd05700-a839-4014-8f88-8a78f2757721`
+
+**Open tasks:**
+- ► T01 - Establish flex-auth production authorization  `7dff0ac6`
+- ► T02 - Add invitation and verification mail delivery  `9d5f272b`
+- ► T03 - Operate durable event delivery  `17d6390b`
+- ► T04 - Run expanded integration failure matrix  `4c54e8e4`
+
 ### Cut over NetKingdom identity to railiance01 and retire CoulombCore
 Progress: 7/8 done  |  workplan_id: `3dadddeb-4cec-48e2-9c2c-788b26dd6e93`
 
 **Open tasks:**
 - ! T08 - Final deletion and closure  `9f209f15`
+  *(wait: Rollback retention gate remains in force through 2026-08-29; then verify restore/restart drill evidence and obtain separate explicit approval before deletion or closure.)*
 
 ## Inbox Hygiene