diff --git a/.custodian-brief.md b/.custodian-brief.md
index 0ef7850..154efae 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,24 +2,20 @@
 # Custodian Brief — artifact-store
 
 **Domain:** stack  
-**Last synced:** 2026-05-16 22:26 UTC  
+**Last synced:** 2026-05-17 11:37 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
-### Guide-Board Pilot Ingestion
-Progress: 4/5 done  |  workstream_id: `701c4d8c-5cf4-4a4a-ab60-1dcae53fe771`
+### MinIO Compatibility, MaxIO Fork Assessment, And STS Credential Vending
+Progress: 0/5 done  |  workstream_id: `2f34bb96-7206-4cb5-acdf-43880b57a9ec`
 
 **Open tasks:**
-- ! D5.5 - Operator Smoke Procedure For The Real Producer  `bffa3573`
-  *(blocked: Fresh guide-board/OpenCMIS producer run stops before artifact-store handoff with missing reports/cmis-summary.md.)*
-
-### S3-Compatible Backend (Ceph RGW Target)
-Progress: 4/5 done  |  workstream_id: `d0526cfc-e532-431f-970d-f3e548d27a80`
-
-**Open tasks:**
-- ! D4.4 - Test Strategy: MinIO In CI, RGW As Documented Manual Smoke  `4fd7b73b`
-  *(blocked: Missing Python dependency/bootstrap path for MinIO testcontainers verification.)*
+- · D7.1 - MinIO / Fork Landscape Assessment  `11d84b56`
+- · D7.2 - MinIO Compatibility Harness  `c826f3ac`
+- · D7.3 - STS Credential Vending Assessment For NetKingdom  `d3d5c4c1`
+- · D7.4 - Artifact-Store Temporary Credential Support  `9b80057a`
+- · D7.5 - Follow-Up Workstream Routing  `614f7918`
 
 ---
 ## MCP Orientation (when available)