diff --git a/.custodian-brief.md b/.custodian-brief.md
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 # Custodian Brief — kontextual-engine
 
 **Domain:** markitect  
-**Last synced:** 2026-05-13 23:28 UTC  
+**Last synced:** 2026-05-14 00:10 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
-### CMIS Read-Side Contract Maturity
-Progress: 0/7 done  |  workstream_id: `8783b411-3ad4-4f32-90eb-035b538c8156`
-
-**Open tasks:**
-- · D16.1 - Define the pre-release CMIS read-side contract  `961bb720`
-- · D16.2 - Implement a bounded CMIS query subset  `f393271e`
-- · D16.3 - Decide and implement bounded navigation tree semantics  `468221a0`
-- · D16.4 - Stabilize relationship read-side projection  `86d117a8`
-- · D16.5 - Stabilize ACL discovery projection  `6214aac1`
-- · D16.6 - Harden change-token and persistence compatibility  `1f492036`
-- · D16.7 - Expand examples, capacity tests, and external assessment evidence  `73d9b377`
-
 ### First Release Readiness
 Progress: 0/5 done  |  workstream_id: `cb525023-1139-4d6c-9226-d6fdd1f5fd8f`