diff --git a/.custodian-brief.md b/.custodian-brief.md
index e96a7e9..c8f4b0d 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,12 +2,22 @@
 # Custodian Brief — activity-core
 
 **Domain:** custodian  
-**Last synced:** 2026-05-14 21:36 UTC  
+**Last synced:** 2026-05-14 21:51 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
-*(none — repo may need first-session setup)*
+### activity-core WP-0004 — Railiance Deployment & Service Ops
+Progress: 0/7 done  |  workstream_id: `759b1255-aa78-42b5-8fab-c5fcf168f5f4`
+
+**Open tasks:**
+- · [repo:activity-core] T58: Dockerfile (multi-stage, uv-based)  `2a81f9ba`
+- · [repo:activity-core] T59: docker-compose.railiance.yml (full stack, no Elasticsearch)  `67981de4`
+- · [repo:activity-core] T60: GET /health endpoint  `7c7a1617`
+- · [repo:activity-core] T61: .env.example — complete env var reference  `2a2a8d02`
+- · [repo:activity-core] T62: Makefile ops targets  `55ac37b5`
+- · [repo:activity-core] T63: SIGTERM graceful shutdown (worker + event_router)  `65b3229b`
+- · [repo:activity-core] T64: docs/runbook.md — railiance deployment section  `83dcd765`
 
 ---
 ## MCP Orientation (when available)