diff --git a/.custodian-brief.md b/.custodian-brief.md
index 1dba93a..b706b61 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,12 +2,19 @@
 # Custodian Brief — email-connect
 
 **Domain:** infotech  
-**Last synced:** 2026-06-22 21:20 UTC  
+**Last synced:** 2026-08-08 21:38 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)*
+### Provide transactional invitation mail delivery
+Progress: 0/4 done  |  workplan_id: `a37e5e4d-090a-4a75-88d2-aacd0c0fd235`
+
+**Open tasks:**
+- · T01 - Define the send and evidence contract  `ef07126a`
+- · T02 - Implement provider-neutral transactional sending  `6a6ae927`
+- · T03 - Establish custody and deploy the service  `13428364`
+- · T04 - Prove invitation delivery failure behavior  `34127b3e`
 
 ---
 ## MCP Orientation (when available)