diff --git a/docs/SYNC.md b/docs/SYNC.md
index 32495fd..1488070 100644
--- a/docs/SYNC.md
+++ b/docs/SYNC.md
@@ -51,7 +51,7 @@ Update the **Status** column when a phase transitions. Allowed states:
 
 | Task | Branch | Owner | Claimed at | ETA | Notes |
 |---|---|---|---|---|---|
-| _(none)_ | | | | | |
+| T-0.5 | feat/spike-tmux-cc | @worker-phase0.5 | 2026-05-15 | +3h | Evaluating tmux control mode |
 
 Example of a filled row:
 ```