diff --git a/.custodian-brief.md b/.custodian-brief.md
index 01ee1c9..da5d990 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,12 +2,16 @@
 # Custodian Brief — glas-harness
 
 **Domain:** infotech  
-**Last synced:** 2026-07-27 00:01 UTC  
+**Last synced:** 2026-08-22 21:53 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)*
+### Sandbox-boundary correction and runtime hardening
+Progress: 4/5 done  |  workplan_id: `c8049700-73ca-549a-b250-1020de1cddc5`
+
+**Open tasks:**
+- ! Task: Re-prove the sandbox boundary and close evidence  `a4be4d68`
 
 ---
 ## MCP Orientation (when available)