diff --git a/.custodian-brief.md b/.custodian-brief.md
index 7119e23..c7f0bad 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,12 +2,18 @@
 # Custodian Brief — coordination-engine
 
 **Domain:** communication  
-**Last synced:** 2026-06-24 13:18 UTC  
+**Last synced:** 2026-08-25 15:44 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)*
+### Worker coordination service contract
+Progress: 1/4 done  |  workplan_id: `78a91239-ae31-5e03-98c9-54f3cbe90cb5`
+
+**Open tasks:**
+- ! Agree adapter and deployment decisions  `1a428ed2`
+- ! Establish OrwellLoggingDiagnostics practice pattern  `4ba98e37`
+- ! Implement the coordination runtime  `074e42ed`
 
 ---
 ## MCP Orientation (when available)