diff --git a/.custodian-brief.md b/.custodian-brief.md
index b5294ef..4d54db1 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,7 +2,7 @@
 # Custodian Brief — markitect-tool
 
 **Domain:** markitect  
-**Last synced:** 2026-05-14 20:08 UTC  
+**Last synced:** 2026-05-14 20:52 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
@@ -30,6 +30,9 @@ Progress: 0/7 done  |  workstream_id: `850cbc13-71cb-422c-86ec-1cc7679095cf`
 - · P16.6 - Add blueprint planning CLI  `07fb3f0d`
 - · P16.7 - Define adapter boundaries for advanced services  `ff78d449`
 
+### Source Adapter Contract Refinement
+Progress: 6/6 done  |  workstream_id: `10a85934-a4b2-4661-83f7-92ac8d322af4`
+
 ---
 ## MCP Orientation (when available)