diff --git a/.yoi/tickets/00001KVHR3WRY/item.md b/.yoi/tickets/00001KVHR3WRY/item.md
index 2ccc1329..7b1b803f 100644
--- a/.yoi/tickets/00001KVHR3WRY/item.md
+++ b/.yoi/tickets/00001KVHR3WRY/item.md
@@ -1,11 +1,13 @@
 ---
 title: 'MCP: implement stdio JSON-RPC lifecycle client'
-state: 'ready'
+state: 'queued'
 created_at: '2026-06-20T05:30:04Z'
-updated_at: '2026-06-20T05:33:03Z'
+updated_at: '2026-06-20T05:58:54Z'
 assignee: null
 readiness: 'implementation_ready'
 risk_flags: ['mcp', 'stdio', 'json-rpc', 'process-lifecycle', 'diagnostics']
+queued_by: 'workspace-panel'
+queued_at: '2026-06-20T05:58:54Z'
 ---
 
 ## Background
diff --git a/.yoi/tickets/00001KVHR3WRY/thread.md b/.yoi/tickets/00001KVHR3WRY/thread.md
index c69a1729..49ccf7ea 100644
--- a/.yoi/tickets/00001KVHR3WRY/thread.md
+++ b/.yoi/tickets/00001KVHR3WRY/thread.md
@@ -4,4 +4,13 @@
 
 LocalTicketBackend によって作成されました。
 
+---
+
+<!-- event: state_changed author: workspace-panel at: 2026-06-20T05:58:54Z from: ready to: queued reason: queued field: state -->
+
+## State changed
+
+Ticket を `workspace-panel` が queued にしました。
+
+
 ---