diff --git a/.custodian-brief.md b/.custodian-brief.md
index 32b0e6d..24f7b48 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,11 +2,23 @@
 # Custodian Brief — the-custodian
 
 **Domain:** custodian  
-**Last synced:** 2026-04-30 12:35 UTC  
+**Last synced:** 2026-04-30 12:50 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
+### SCOPE.md Delegation — Custodian Preparation
+Progress: 0/4 done  |  workstream_id: `bf94b5e9-2bc3-4c09-88cd-233849d4d86c`
+
+**Open tasks:**
+- · T01: Upgrade DOI engine C5 — content structure validation  `7d31bbea`
+- · T02: Surface SCOPE.md health in repo dispatch  `243280c7`
+- · T03: Register capability routes for scope generation  `042c54d4`
+- · T04: Update scope-analyst kaizen agent  `b6d64844`
+
+### Cross-Repo E2E Sandbox Framework
+Progress: 8/8 done  |  workstream_id: `b68de20b-e397-4f97-b1be-ad30711fc2a6`
+
 ### Interactive — the-custodian
 Progress: 4/4 done  |  workstream_id: `370c2481-6806-41eb-a917-f8874f03184f`