diff --git a/.custodian-brief.md b/.custodian-brief.md
index 2005675..2e57c91 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,14 +2,11 @@
 # Custodian Brief — activity-core
 
 **Domain:** infotech  
-**Last synced:** 2026-07-02 09:54 UTC  
+**Last synced:** 2026-07-02 09:55 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
-### LLM Output Robustness & The Producer Trust Boundary
-Progress: 10/10 done  |  workstream_id: `4ef0d53b-1777-41ae-80c6-1b69fdb34726`
-
 ### Adopt State Hub Beachhead Endpoint
 Progress: 0/2 done  |  workstream_id: `bbc07f9e-9323-4b2b-b556-c33b37d0b228`