diff --git a/.custodian-brief.md b/.custodian-brief.md
index 05450fa..9383d5c 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,7 +2,7 @@
 # Custodian Brief — markitect-tool
 
 **Domain:** markitect  
-**Last synced:** 2026-05-04 18:23 UTC  
+**Last synced:** 2026-05-04 18:44 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
@@ -18,6 +18,18 @@ Progress: 0/6 done  |  workstream_id: `a38f676a-0d0b-493c-9792-2e34480c3681`
 - · P15.5 - Render-aware references, numbering, and assets  `53eb9f94`
 - · P15.6 - Permission sandbox for non-core functions  `9ef2c516`
 
+### Agentic Memory Graphs And Service Blueprints
+Progress: 0/7 done  |  workstream_id: `850cbc13-71cb-422c-86ec-1cc7679095cf`
+
+**Open tasks:**
+- · P16.1 - Define graph memory vocabulary  `e1523ffb`
+- · P16.2 - Add memory event log  `a5b871ea`
+- · P16.3 - Define memory service blueprint/profile standard  `07c94925`
+- · P16.4 - Implement local graph/event prototype  `afcd7ce9`
+- · P16.5 - Compile graph neighborhoods into context packages  `5dfbe77e`
+- · P16.6 - Add blueprint planning CLI  `07fb3f0d`
+- · P16.7 - Define adapter boundaries for advanced services  `ff78d449`
+
 ---
 ## MCP Orientation (when available)