diff --git a/.custodian-brief.md b/.custodian-brief.md
index c940477..624c76a 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,11 +2,22 @@
 # Custodian Brief — railiance-fabric
 
 **Domain:** railiance  
-**Last synced:** 2026-05-24 08:39 UTC  
+**Last synced:** 2026-05-24 10:56 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
+### Deployment Zone Discovery And Visualization
+Progress: 0/6 done  |  workstream_id: `e70820a9-d6f3-473d-a17c-b15fe3180773`
+
+**Open tasks:**
+- · T01 - Extend Discovery Overlay Model  `b8cf7d91`
+- · T02 - Discover Local Dev Routing Evidence  `b072e11b`
+- · T03 - Discover Test And Production Routing Authorities  `91fc3f28`
+- · T04 - Add Zone Overlay Graph Explorer Modes  `664c2688`
+- · T05 - Preserve State Hub Read-Model Compatibility  `1a5ef6f9`
+- · T06 - Publish Current Zone Inventory  `a1b208e3`
+
 ### Duplicate Repository Identity Review
 Progress: 0/3 done  |  workstream_id: `bc69549c-3cbc-4a7d-8766-b84added1133`