diff --git a/.custodian-brief.md b/.custodian-brief.md
index a70af2b..46e9d07 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,12 +2,19 @@
 # Custodian Brief — tenant-engine
 
 **Domain:** infotech  
-**Last synced:** 2026-07-23 20:24 UTC  
+**Last synced:** 2026-07-23 20:48 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)*
+### flex-auth-backed WriteAuthorizer
+Progress: 0/4 done  |  workplan_id: `9191e4e7-9716-4f9a-8e48-fa52b643b1c1`
+
+**Open tasks:**
+- · Task: FlexAuthCheckClient  `54cf7e29`
+- · Task: FlexAuthWriteAuthorizer  `aa22bbb1`
+- · Task: Config + docs  `2a2bec93`
+- · Task: Closure review  `225207ab`
 
 ---
 ## MCP Orientation (when available)