diff --git a/.custodian-brief.md b/.custodian-brief.md
index cf10575..6544e1a 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,12 +2,22 @@
 # Custodian Brief — shard-wiki
 
 **Domain:** whynot  
-**Last synced:** 2026-06-15 00:26 UTC  
+**Last synced:** 2026-06-15 06:45 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)*
+### foundation implementation — model, contract, decision log, union read
+Progress: 0/7 done  |  workstream_id: `d551fba1-9c48-4841-a9a5-a9f190f73a60`
+
+**Open tasks:**
+- · provenance/ leaf — layered ProvenanceEnvelope + ⊕  `be8f9efe`
+- · model/ — Identity, Placement, Span, Page, CapabilityProfile  `780ad01f`
+- · adapters/ — versioned AdapterContract + FolderAdapter (read)  `f6e35ddb`
+- · adapters/ — conformance suite  `12d7fb8d`
+- · coordination/ — the event-sourced DecisionLog keystone  `c87b1896`
+- · policy/ leaf + union/ — IdentityResolver + minimal union read  `fed38b60`
+- · Orchestrator wiring + slice integration test  `86c0b255`
 
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 ## MCP Orientation (when available)