diff --git a/.custodian-brief.md b/.custodian-brief.md
index eb81f7e..d0d0a9d 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,13 +2,23 @@
 # Custodian Brief — the-custodian
 
 **Domain:** railiance  
-**Last synced:** 2026-04-19 22:47 UTC  
+**Last synced:** 2026-04-19 23:00 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
-### Cross-Repo E2E Sandbox Framework
-Progress: 8/8 done  |  workstream_id: `b68de20b-e397-4f97-b1be-ad30711fc2a6`
+### Haskell Build Machine — VirtualBox Image & State-Hub Integration
+Progress: 0/15 done  |  workstream_id: `f2bfac74-de8a-4c86-9aa9-4d95a92336e2`
+
+**Open tasks:**
+- · Task: Packer build definition  `1430844c`
+- · Task: Ubuntu autoinstall (cloud-init) config  `816bd164`
+- · Task: Haskell toolchain installation script  `2900ae95`
+- · Task: Agent installation script  `5267d2f3`
+- · Task: Registration + tunnel agent (build-agent.py)  `18ee959d`
+- · Task: systemd unit and env template  `1a6bf2a2`
+- · Task: SSH key injection procedure  `6bb36de9`
+- … and 8 more open tasks
 
 ### Interactive — the-custodian
 Progress: 4/4 done  |  workstream_id: `370c2481-6806-41eb-a917-f8874f03184f`