diff --git a/.custodian-brief.md b/.custodian-brief.md
index 52c7d14..eb76528 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,18 +2,15 @@
 # Custodian Brief — the-custodian
 
 **Domain:** custodian  
-**Last synced:** 2026-05-11 13:47 UTC  
+**Last synced:** 2026-05-11 15:33 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
 ### Dashboard Poll Optimization
-Progress: 0/6 done  |  workstream_id: `d5ffb008-a517-4b8b-86ce-093fcc285fb3`
+Progress: 3/6 done  |  workstream_id: `d5ffb008-a517-4b8b-86ce-093fcc285fb3`
 
 **Open tasks:**
-- · T1 — Add Cache-Control headers to reference endpoints  `b36713d8`
-- · T2 — Add ETag support to high-frequency list endpoints  `75f1c2cd`
-- · T3 — Add lightweight `/state/deps` endpoint  `cb7608d3`
 - · T4 — Replace `/state/summary` in workstreams.md and dependencies.md  `b80dce9c`
 - · T5 — Consolidate index.md's 4 polling loops into 1  `7c2d5e01`
 - · T6 — Full visibility-based polling pause in config.js  `31b6a353`