diff --git a/.custodian-brief.md b/.custodian-brief.md
index e38f10c..b46e32b 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,12 +2,20 @@
 # Custodian Brief — tenant-engine
 
 **Domain:** infotech  
-**Last synced:** 2026-08-13 23:43 UTC  
+**Last synced:** 2026-08-15 23:50 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)*
+### Guardrail and quota policy for tenants
+Progress: 0/5 done  |  workplan_id: `bddb6699-cb53-472a-9757-a3ed0eb0ce27`
+
+**Open tasks:**
+- · T01 - Specify the guardrail model and its boundary  `b0693ec3`
+- · T02 - Implement the guardrail domain model  `1b28d836`
+- · T03 - Persist guardrails in both stores  `f1c93573`
+- · T04 - Expose guardrail read and write APIs  `4a256517`
+- · T05 - Conformance and consumer handoff  `92036fa3`
 
 ---
 ## MCP Orientation (when available)