diff --git a/.custodian-brief.md b/.custodian-brief.md
index e5d81d3..a04b560 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,16 +2,15 @@
 # Custodian Brief — shard-wiki
 
 **Domain:** whynot  
-**Last synced:** 2026-06-15 22:27 UTC  
+**Last synced:** 2026-06-15 22:36 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
 ### wiki-engine implementation — kernel + typed-extension runtime + activation
-Progress: 4/6 done  |  workstream_id: `bfce1644-d93d-44c7-af2c-6b0cb50cedd4`
+Progress: 5/6 done  |  workstream_id: `bfce1644-d93d-44c7-af2c-6b0cb50cedd4`
 
 **Open tasks:**
-- · EngineShardAdapter (engine as a canonical-mode shard)  `2fbf498c`
 - · First built-in extension (prove the framework end-to-end)  `b88d1640`
 
 ### second adapter — git-IS-store shard (contract validation on a new substrate)