diff --git a/.custodian-brief.md b/.custodian-brief.md
index 6db97fa..ecee868 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,7 +2,7 @@
 # Custodian Brief — tenant-engine
 
 **Domain:** infotech  
-**Last synced:** 2026-09-07 11:45 UTC  
+**Last synced:** 2026-09-21 00:09 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
@@ -14,6 +14,12 @@ Progress: 0/2 done  |  workplan_id: `cb7387d0-431d-56a2-bb7b-86a024aeeefb`
 - ! T01 — audit-core sender registration (AUDIT-IN-0002)  `7898c1aa`
 - ! T02 — boundary-contract amendment (NET-IN-0002)  `f7d27d7c`
 
+## Inbox Hygiene
+
+**Stale unread:** 3 message(s) older than 3 day(s) — triage at session start.
+**Missing thread_id:** 3 unread message(s) lack supersession chains.
+- ! flex-auth: FLEX-WP-0020: verify retained runtime contract after repository rename  `08b3edfa`
+
 ---
 ## MCP Orientation (when available)