diff --git a/.custodian-brief.md b/.custodian-brief.md
index e4135a0..96dff76 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,7 +2,7 @@
 # Custodian Brief — railiance-cluster
 
 **Domain:** financials  
-**Last synced:** 2026-07-09 22:53 UTC  
+**Last synced:** 2026-07-25 08:19 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Current Goal
@@ -11,7 +11,14 @@ Install k3s and Kubernetes Baseline on the HostEurope Server
 
 ## Active Workstreams
 
-*(none — repo may need first-session setup)*
+### rail-kubernetes extraction from railiance-cluster
+Progress: 0/4 done  |  workplan_id: `2b01ce91-35be-4947-832b-2f462c6ba472`
+
+**Open tasks:**
+- ! T04 - Prepare compatibility shims for the migration window  `fdc9fa63`
+- · T01 - Align `railiance-cluster` scope with the wave-1 boundary  `7255ef32`
+- · T02 - Inventory exact extraction candidates and retained files  `e80b511a`
+- · T03 - Define the cluster substrate profile consumed by `rail-kubernetes`  `517e2849`
 
 ---
 ## MCP Orientation (when available)