diff --git a/.yoi/tickets/00001KVZD10ED/item.md b/.yoi/tickets/00001KVZD10ED/item.md
index 9bc20ca6..867bc3a8 100644
--- a/.yoi/tickets/00001KVZD10ED/item.md
+++ b/.yoi/tickets/00001KVZD10ED/item.md
@@ -1,8 +1,8 @@
 ---
 title: 'llm-worker crateをllm-engineへ改名する'
-state: 'queued'
+state: 'inprogress'
 created_at: '2026-06-25T12:45:38Z'
-updated_at: '2026-06-25T13:26:00Z'
+updated_at: '2026-06-25T13:26:35Z'
 assignee: null
 queued_by: 'workspace-panel'
 queued_at: '2026-06-25T13:24:26Z'
diff --git a/.yoi/tickets/00001KVZD10ED/thread.md b/.yoi/tickets/00001KVZD10ED/thread.md
index 5f5ca942..0d22b609 100644
--- a/.yoi/tickets/00001KVZD10ED/thread.md
+++ b/.yoi/tickets/00001KVZD10ED/thread.md
@@ -108,3 +108,16 @@ Next action:
 - `queued -> inprogress` を記録してから worktree-workflow で `/home/hare/Projects/yoi/.worktree/00001KVZD10ED-llm-engine-rename` を作成し、multi-agent-workflow で Coder/Reviewer sibling loop に進める。
 
 ---
+
+<!-- event: state_changed author: yoi-orchestrator at: 2026-06-25T13:26:35Z from: queued to: inprogress reason: orchestrator_acceptance_unblocked field: state -->
+
+## State changed
+
+Orchestrator acceptance: queued -> inprogress
+
+- 直前確認で `TicketShow` は state `queued`、blocking relation は 0 件、accepted plan `orch-plan-20260625-132518-1` を確認した。
+- routing decision と IntentPacket は Ticket thread に記録済み。
+- orchestration worktree は clean。この Ticket 用 worktree/branch はまだ作成していない。
+- これ以降に worktree-workflow で `/home/hare/Projects/yoi/.worktree/00001KVZD10ED-llm-engine-rename` を作成し、multi-agent-workflow に接続する。
+
+---