diff --git a/.custodian-brief.md b/.custodian-brief.md
index 77599c5..259eb5b 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,7 +2,7 @@
 # Custodian Brief — activity-core
 
 **Domain:** infotech  
-**Last synced:** 2026-10-03 01:10 UTC  
+**Last synced:** 2026-10-03 01:25 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
@@ -11,7 +11,8 @@
 Progress: 4/5 done  |  workplan_id: `256dad13-28b4-5361-ab8a-7d1373a5d14b`
 
 **Open tasks:**
-- · Prove on one definition  `e71423f9`
+- ! Prove on one definition  `e71423f9`
+  *(wait: Depends on T03/T04; FI and Binky unsuitable as pilot while ACTIVITY-WP-0031-T01 is unresolved.)*
 
 ### Deterministic frontend-patterns feedback collection and reports
 Progress: 2/3 done  |  workplan_id: `963bf8b3-536c-5625-b786-60a7b6e7c809`