diff --git a/.custodian-brief.md b/.custodian-brief.md
index 23628cc..83e27b0 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,7 +2,7 @@
 # Custodian Brief — infospace-bench
 
 **Domain:** markitect  
-**Last synced:** 2026-05-14 11:28 UTC  
+**Last synced:** 2026-05-14 11:59 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
@@ -61,15 +61,6 @@ Progress: 0/4 done  |  workstream_id: `3f6f17c9-bf50-4297-9bd5-cbe1e33efa76`
 - · Define and parse relation model  `845a8ea0`
 - · Manifest integration  `155028a2`
 
-### Markitect Tool Adapter And Markdown Artifact Validation
-Progress: 0/4 done  |  workstream_id: `713415b0-0c14-4367-8217-26c729648aec`
-
-**Open tasks:**
-- · Add dependency and adapter boundary  `b438be61`
-- · Parse Markdown artifacts through markitect-tool  `d37d6be3`
-- · Validate artifact contracts  `74a78679`
-- · CLI inspection integration  `99b4e2ca`
-
 ---
 ## MCP Orientation (when available)