diff --git a/A00_Common/design/logic/design_calc_registry.ts b/A00_Common/design/logic/design_calc_registry.ts
index 7fc9c6126..10ee3388a 100644
--- a/A00_Common/design/logic/design_calc_registry.ts
+++ b/A00_Common/design/logic/design_calc_registry.ts
@@ -161,6 +161,7 @@ export const CALC_REGISTRY: readonly CalcEntry[] = [
     until: "472-4",
     pair: `${U}common_util_station_key.py#station_key`,
     mirror: ["test_344_3_station_key_mirror"],
+    note: "서버 열쇠(Route_Save_Parts.station_keys)는 주인 = 파이썬 plan_stations(F3 · 카탈로그) · 부르는 곳 = 노선 저장 이월(③) — ③ · F3 와 같이 Node 로",
   },
   {
     id: "stations.swap",