diff --git a/.custodian-brief.md b/.custodian-brief.md
index 5aa89cc..c2d6a40 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,12 +2,24 @@
 # Custodian Brief — adaptive-pricing
 
 **Domain:** financials  
-**Last synced:** 2026-08-18 05:30 UTC  
+**Last synced:** 2026-09-28 09:50 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)*
+### Plan-derived guardrail spend ceilings
+Progress: 0/4 done  |  workplan_id: `543e6398-d2cb-5105-977e-b90461adac3e`
+
+**Open tasks:**
+- ! Establish The Interface Contract With tenant-engine  `7533431c`
+- ! Extend The Pricing Schema With Ceiling Terms  `7bd4dace`
+- ! Validate Ceiling Coherence  `46e49880`
+- ! Route Ceiling Changes Through Approval  `a3eeffa6`
+
+## 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.
 
 ---
 ## MCP Orientation (when available)