diff --git a/.custodian-brief.md b/.custodian-brief.md
index 1718415..5045ec1 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,7 +2,7 @@
 # Custodian Brief — coulomb-loop
 
 **Domain:** coulomb_social  
-**Last synced:** 2026-06-18 09:02 UTC  
+**Last synced:** 2026-06-18 10:09 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
@@ -44,13 +44,6 @@ Progress: 0/7 done  |  workstream_id: `f3a4b60a-7bc2-400d-bf8a-e7209a9e45c4`
 - · Expand domain batch  `f6e5a9d5`
 - · Promote cadence  `5b6bb667`
 
-### Kaizen Improvement Stack (coach + metrics + optimization)
-Progress: 6/8 done  |  workstream_id: `90a05147-7b95-4ce7-96bf-39cdb487b557`
-
-**Open tasks:**
-- · Three-repo pilot with metrics  `e60fa833`
-- · Promote to daily cadence  `7c77ec4f`
-
 ---
 ## MCP Orientation (when available)