diff --git a/.custodian-brief.md b/.custodian-brief.md
index a3d5521..3cc47bd 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,18 +2,19 @@
 # Custodian Brief — soul-frame
 
 **Domain:** agents  
-**Last synced:** 2026-08-11 23:22 UTC  
+**Last synced:** 2026-08-11 23:26 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
-### Phase III — Personhood: person, character, persona
-Progress: 0/3 done  |  workplan_id: `bd2b325a-5873-472e-9f16-75422c21a631`
+### Phase IV — Artificial Beings: agents and persistent identity
+Progress: 0/4 done  |  workplan_id: `5db87ddb-aeb3-4648-834f-3833390831a0`
 
 **Open tasks:**
-- · T01 — Personhood dimensions literature map  `67cefbce`
-- · T02 — Character / persona / performance map  `85a00121`
-- · T03 — Phase III synthesis note  `1e371078`
+- · T01 — Agent architecture crosswalk  `ddc81bc0`
+- · T02 — Persistence & memory architectures  `70f35381`
+- · T03 — Catalog approximate Beings  `2b6bd6b6`
+- · T04 — Phase IV synthesis note  `dbe3eaea`
 
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 ## MCP Orientation (when available)