diff --git a/.custodian-brief.md b/.custodian-brief.md
index de4b333..1d2e9e1 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,7 +2,7 @@
 # Custodian Brief — reuse-surface
 
 **Domain:** infotech  
-**Last synced:** 2026-09-08 12:19 UTC  
+**Last synced:** 2026-09-20 20:35 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
@@ -13,6 +13,12 @@ Progress: 1/2 done  |  workplan_id: `0d1beafd-e638-5bb9-b91d-13543ac42a04`
 **Open tasks:**
 - ! Repair archived workplan bindings reported during handoff registration  `ceba0cd4`
 
+## Inbox Hygiene
+
+**Stale unread:** 1 message(s) older than 3 day(s) — triage at session start.
+**Missing thread_id:** 1 unread message(s) lack supersession chains.
+- ! flex-auth: FLEX-WP-0020 handoff request (other)  `08919217`
+
 ---
 ## MCP Orientation (when available)