diff --git a/.custodian-brief.md b/.custodian-brief.md
index 771a4d1..e0a1436 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,11 +2,22 @@
 # Custodian Brief — fin-hub
 
 **Domain:** financials  
-**Last synced:** 2026-08-11 13:49 UTC  
+**Last synced:** 2026-08-15 17:02 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
+### AI plan cost, token estimates, and effectiveness
+Progress: 2/8 done  |  workplan_id: `88de5e03-a53f-4b62-a0a7-1365756da2d7`
+
+**Open tasks:**
+- · Book AI-plan invoices as facts and commitments  `216aac44`
+- · Record plan entitlements  `51c1b86f`
+- · Consume State Hub token aggregates as usage observations  `29f1804f`
+- · Allocate booked plan cost across work  `db098143`
+- · Publish an effectiveness report  `cea14702`
+- · Send canon feedback  `42aeae80`
+
 ### Establish the resource cost evidence contract
 Progress: 8/9 done  |  workplan_id: `67b6de6c-4820-4478-9789-f50260204c27`