diff --git a/.custodian-brief.md b/.custodian-brief.md
index 68b0598..53fb5b0 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -1,14 +1,22 @@
 <!-- custodian-brief: generated by fix-consistency — do not edit manually -->
 # Custodian Brief — the-custodian
 
-**Domain:** railiance  
-**Last synced:** 2026-04-26 12:57 UTC  
+**Domain:** custodian  
+**Last synced:** 2026-04-26 13:04 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
-### Cross-Repo E2E Sandbox Framework
-Progress: 8/8 done  |  workstream_id: `b68de20b-e397-4f97-b1be-ad30711fc2a6`
+### Interface Change Registry — Coordinated API Evolution
+Progress: 0/6 done  |  workstream_id: `420a3981-abf5-4a8e-a94b-455964f1a0e5`
+
+**Open tasks:**
+- · T01: Data model and migration  `6bc77d3c`
+- · T02: API endpoints  `7664551e`
+- · T03: Dispatch integration  `8f8403a2`
+- · T04: MCP tools  `d9135829`
+- · T05: Dashboard page  `d2fcbe83`
+- · T06: Register webhook extension point  `47d7bea8`
 
 ### Interactive — the-custodian
 Progress: 4/4 done  |  workstream_id: `370c2481-6806-41eb-a917-f8874f03184f`
@@ -67,6 +75,6 @@ Progress: 0/9 done  |  workstream_id: `9cc32158-2f5c-4ef6-9713-aacce4623d5e`
 ## MCP Orientation (when available)
 
 If the state-hub MCP server is reachable, call:
-`get_domain_summary("railiance")`
+`get_domain_summary("custodian")`
 This provides richer cross-domain context.
 If the MCP call fails, use this file as your orientation source.