diff --git a/.custodian-brief.md b/.custodian-brief.md
index 9780051..fbb8102 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,11 +2,25 @@
 # Custodian Brief — the-custodian
 
 **Domain:** custodian  
-**Last synced:** 2026-05-01 12:21 UTC  
+**Last synced:** 2026-05-01 12:28 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
+### Ad Hoc Tasks and Workplan Archiving
+Progress: 0/6 done  |  workstream_id: `b2867cd8-1866-4baa-b844-a0f37d276cae`
+
+**Open tasks:**
+- · T01: Specify the Ad Hoc Tasks convention  `b9ca840e`
+- · T02: Teach consistency tooling about archived workplans  `8ab029f6`
+- · T03: Implement timestamped archive workflow  `6922752a`
+- · T04: Replace `record_interactive_task` with file-backed adhocs  `a5a0f1d9`
+- · T05: Migrate or retire legacy interactive workstreams  `4bc4edec`
+- · T06: Tests, docs, and dashboard/review surface  `ac480949`
+
+### Cross-Repo E2E Sandbox Framework
+Progress: 8/8 done  |  workstream_id: `b68de20b-e397-4f97-b1be-ad30711fc2a6`
+
 ### Task-Flow-Engine — Declarative Workstation and Requisite Model
 Progress: 0/6 done  |  workstream_id: `781e519b-0dd7-451b-b63c-fad50f999c9c`