diff --git a/.custodian-brief.md b/.custodian-brief.md
index 08967ec..32a3992 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,12 +2,20 @@
 # Custodian Brief — prj-state-hub-retirement
 
 **Domain:** infotech  
-**Last synced:** 2026-08-09 14:32 UTC  
+**Last synced:** 2026-08-09 15:24 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
-*(none — repo may need first-session setup)*
+### Project foundation and architecture baseline
+Progress: 1/6 done  |  workplan_id: `8498db77-cbe1-48ff-b7f0-03b933f0aa8a`
+
+**Open tasks:**
+- · Inventory State Hub  `f19351e4`
+- · Define the information architecture  `65e522c7`
+- · Define the hub and extension architecture  `90e8350a`
+- · Establish the child-workplan map  `1fc9da32`
+- · Baseline migration and retirement acceptance  `d793f242`
 
 ---
 ## MCP Orientation (when available)