ticket: hold queued mcp chain for dependencies

.yoi/tickets/00001KVHR3WSW/artifacts/orchestration-plan.jsonl

@@ -0,0 +1 @@
+{"id":"orch-plan-20260620-060022-1","ticket_id":"00001KVHR3WSW","kind":"blocked_by","related_ticket":"00001KVHR3WS6","note":"list_changed handling requires initial tools/list registration. `00001KVHR3WS6` is queued and depends on lifecycle; leave this Ticket queued until tool registration is closed.","author":"yoi-orchestrator","at":"2026-06-20T06:00:22Z"}

.yoi/tickets/00001KVHR3WSW/item.md

@@ -2,7 +2,7 @@
 title: 'MCP: handle list_changed notifications safely'
 state: 'queued'
 created_at: '2026-06-20T05:30:04Z'
-updated_at: '2026-06-20T05:59:05Z'
+updated_at: '2026-06-20T06:00:44Z'
 assignee: null
 readiness: 'implementation_ready'
 risk_flags: ['mcp', 'notifications', 'tool-schema', 'prompt-cache', 'refresh']

.yoi/tickets/00001KVHR3WSW/thread.md

@@ -13,4 +13,17 @@ LocalTicketBackend によって作成されました。
 Ticket を `workspace-panel` が queued にしました。
 
 
+---
+
+<!-- event: decision author: yoi-orchestrator at: 2026-06-20T06:00:44Z -->
+
+## Decision
+
+Routing decision: blocked_pending_dependency
+
+Panel Queue により routing 対象として確認したが、`00001KVHR3WSW` は `00001KVHR3WS6` に `depends_on` している。list_changed handling は initial tools/list registration を前提にするため、`00001KVHR3WS6` が closed になるまで実装開始せず queued のまま保持する。
+
+Next:
+- `00001KVHR3WS6` が closed になった後、改めて reroute する。
+
 ---