ticket: split mcp stdio roadmap

.yoi/tickets/00001KTR82RB7/thread.md

@@ -22,4 +22,34 @@ LocalTicketBackend によって作成されました。
 - `00001KSXRQ4G8` と `00001KT0Z4BK8` は Plugin permission を Plugin layer として扱い、MCP を初期 Plugin packaging/runtime から分離する。
 
 
+---
+
+<!-- event: state_changed author: hare at: 2026-06-20T05:33:15Z from: planning to: closed reason: closed field: state -->
+
+## State changed
+
+Ticket を closed にしました。
+
+
+---
+
+<!-- event: close author: hare at: 2026-06-20T05:33:15Z status: closed -->
+
+## 完了
+
+Closed as superseded by concrete MCP implementation Tickets.
+
+This Ticket bundled config/trust policy, stdio lifecycle, tools/list registration, tools/call execution, resources/prompts operations, result serialization, and list_changed handling into one broad implementation item. That is too coarse for the current Ticket policy: Tickets should be concrete implementation tasks.
+
+The MCP roadmap now lives in Objective `00001KTR80WMN` (`MCP local stdio integration roadmap`). Concrete follow-up Tickets are:
+- `00001KVHR3WRF` — local stdio server config and trust policy;
+- `00001KVHR3WRY` — stdio JSON-RPC lifecycle client;
+- `00001KVHR3WS6` — server tools registration into ToolRegistry;
+- `00001KVHR3WSD` — tools/call execution through ordinary Tool path;
+- `00001KVHR3WSN` — resources/prompts as explicit tool operations;
+- `00001KVHR3WSW` — list_changed notification handling.
+
+Future MCP work should use those concrete Tickets or similarly scoped follow-ups, not this broad umbrella Ticket.
+
+
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