diff --git a/apps/server/src/application/coordinators/disconnectCoordinator.ts b/apps/server/src/application/coordinators/disconnectCoordinator.ts
index b284eb2..18f23bf 100644
--- a/apps/server/src/application/coordinators/disconnectCoordinator.ts
+++ b/apps/server/src/application/coordinators/disconnectCoordinator.ts
@@ -12,7 +12,7 @@
 import { resolveCoordinatorRuntime } from "./runtimeCoordinatorSupport";
 
 /** 切断調停で利用する入力ポートと出力ポートの契約 */
-export type DisconnectCoordinatorParams = {
+type DisconnectCoordinatorParams = {
   socketId: string;
 } & DisconnectCoordinatorDeps & {
   gameOutput: Pick<GameOutputPort, "publishPlayerRemovedToRoom">;
diff --git a/apps/server/src/domains/game/application/services/BotRosterService.ts b/apps/server/src/domains/game/application/services/BotRosterService.ts
index 2073868..3aca566 100644
--- a/apps/server/src/domains/game/application/services/BotRosterService.ts
+++ b/apps/server/src/domains/game/application/services/BotRosterService.ts
@@ -10,7 +10,7 @@
 export type BotPlayerId = string & { readonly [botPlayerIdBrand]: true };
 
 /** BotプレイヤーIDを生成する */
-export const createBotPlayerId = (
+const createBotPlayerId = (
   roomId: string,
   serialNumber: number,
 ): BotPlayerId => {
diff --git a/apps/server/src/domains/game/entities/bomb/bombDedup.ts b/apps/server/src/domains/game/entities/bomb/bombDedup.ts
index d28ba33..e3955d3 100644
--- a/apps/server/src/domains/game/entities/bomb/bombDedup.ts
+++ b/apps/server/src/domains/game/entities/bomb/bombDedup.ts
@@ -17,7 +17,7 @@
 };
 
 /** 重複排除テーブルの期限切れエントリを削除する */
-export const cleanupExpiredBombDedup = (
+const cleanupExpiredBombDedup = (
   dedupTable: Map<string, number>,
   nowMs: number
 ): void => {
diff --git a/apps/server/src/logging/contracts/payloadByScope.ts b/apps/server/src/logging/contracts/payloadByScope.ts
index 63b10ac..0480671 100644
--- a/apps/server/src/logging/contracts/payloadByScope.ts
+++ b/apps/server/src/logging/contracts/payloadByScope.ts
@@ -5,7 +5,7 @@
 import { protocol } from "@repo/shared";
 import { gameDomainLogEvents, gameUseCaseLogEvents, roomDomainLogEvents, roomUseCaseLogEvents } from "../constants/eventNames";
 import { logResults } from "../constants/results";
-import { logScopes, type LogScope } from "../constants/scopes";
+import { logScopes } from "../constants/scopes";
 
 /** Network接続確立ログの契約 */
 type NetworkConnectLogPayload = {
@@ -276,6 +276,3 @@
   [logScopes.ROOM_JOIN_SERVICE]: RoomJoinServiceLogPayload;
   [logScopes.ROOM_EXIT_SERVICE]: RoomExitServiceLogPayload;
 };
-
-/** スコープごとのログペイロード型を参照するユーティリティ */
-export type LogPayloadOf<TScope extends LogScope> = LogPayloadByScope[TScope];
diff --git a/apps/server/src/logging/index.ts b/apps/server/src/logging/index.ts
index af0031a..3a35321 100644
--- a/apps/server/src/logging/index.ts
+++ b/apps/server/src/logging/index.ts
@@ -3,12 +3,8 @@
  * logging配下の公開APIを集約して再公開する
  */
 
-/** ログ出力関数を再公開 */
-export { logEvent } from "./logger";
-
 /** ログスコープ定数と型を再公開 */
 export { logScopes } from "./constants/scopes";
-export type { LogScope } from "./constants/scopes";
 
 /** ログ結果値定数を再公開 */
 export { logResults } from "./constants/results";
@@ -20,6 +16,3 @@
   gameDomainLogEvents,
   roomDomainLogEvents,
 } from "./constants/eventNames";
-
-/** ログペイロード契約型を再公開 */
-export type { LogPayloadByScope, LogPayloadOf } from "./contracts/payloadByScope";
diff --git a/apps/server/src/network/bootstrap/createServerRuntime.ts b/apps/server/src/network/bootstrap/createServerRuntime.ts
index eb577e3..30600ac 100644
--- a/apps/server/src/network/bootstrap/createServerRuntime.ts
+++ b/apps/server/src/network/bootstrap/createServerRuntime.ts
@@ -9,7 +9,7 @@
 import { createIo } from "./createIo";
 
 /** 起動時に構築する実行コンテキスト */
-export type ServerRuntime = {
+type ServerRuntime = {
   socketManager: SocketManager;
 };
 
diff --git a/apps/server/src/network/handlers/createOutputAdapters.ts b/apps/server/src/network/handlers/createOutputAdapters.ts
index 2547214..abd3bd5 100644
--- a/apps/server/src/network/handlers/createOutputAdapters.ts
+++ b/apps/server/src/network/handlers/createOutputAdapters.ts
@@ -23,7 +23,7 @@
 };
 
 /** 切断処理で利用するゲームとルームの出力アダプタ集合 */
-export type DisconnectOutputAdapters = {
+type DisconnectOutputAdapters = {
   game: GameDisconnectOutputAdapter;
   room: Pick<RoomOutputAdapter, "publishRoomUpdateToRoom">;
 };
diff --git a/apps/server/src/network/handlers/index.ts b/apps/server/src/network/handlers/index.ts
index 079d360..e6d1d4b 100644
--- a/apps/server/src/network/handlers/index.ts
+++ b/apps/server/src/network/handlers/index.ts
@@ -5,9 +5,3 @@
 
 /** 接続イベントの共通ハンドラ登録関数を再公開する */
 export { registerConnectionHandlers } from "./registerConnectionHandlers";
-
-/** ゲームイベント受信ハンドラ登録関数を再公開する */
-export { registerGameHandlers } from "./game/registerGameHandlers";
-
-/** ルームイベント受信ハンドラ登録関数を再公開する */
-export { registerRoomHandlers } from "./room/registerRoomHandlers";
diff --git a/apps/server/src/network/handlers/orchestratorEventLogger.ts b/apps/server/src/network/handlers/orchestratorEventLogger.ts
index b7decd3..7cfb0a5 100644
--- a/apps/server/src/network/handlers/orchestratorEventLogger.ts
+++ b/apps/server/src/network/handlers/orchestratorEventLogger.ts
@@ -7,7 +7,7 @@
 import { logResults, logScopes } from "@server/logging/index";
 
 /** オーケストレータで未解決時に記録するイベント型 */
-export type MissingRoomNetworkEvent =
+type MissingRoomNetworkEvent =
   | typeof protocol.SocketEvents.MOVE
   | typeof protocol.SocketEvents.PLACE_BOMB
   | typeof protocol.SocketEvents.BOMB_HIT_REPORT;
diff --git a/apps/server/src/network/handlers/registerConnectionHandlers.ts b/apps/server/src/network/handlers/registerConnectionHandlers.ts
index aa4b953..0703ca3 100644
--- a/apps/server/src/network/handlers/registerConnectionHandlers.ts
+++ b/apps/server/src/network/handlers/registerConnectionHandlers.ts
@@ -2,7 +2,7 @@
  * registerConnectionHandlers
  * 接続時にルームとゲームの各ハンドラを登録する
  */
-import { Server, Socket } from "socket.io";
+import { Socket } from "socket.io";
 import { protocol } from "@repo/shared";
 import { disconnectCoordinator } from "@server/application/coordinators/disconnectCoordinator";
 import { registerGameHandlers } from "./game/registerGameHandlers";
diff --git a/apps/server/src/network/handlers/registration/createConnectionRegistrationContext.ts b/apps/server/src/network/handlers/registration/createConnectionRegistrationContext.ts
index 2a087a6..e9a17e3 100644
--- a/apps/server/src/network/handlers/registration/createConnectionRegistrationContext.ts
+++ b/apps/server/src/network/handlers/registration/createConnectionRegistrationContext.ts
@@ -10,13 +10,13 @@
 } from "../createOutputAdapters";
 
 /** 接続イベント調停で利用する依存束 */
-export type ConnectionHandlerDeps = {
+type ConnectionHandlerDeps = {
   io: Server;
   socket: Socket;
 } & Omit<RegisterConnectionHandlersParams, "io">;
 
 /** 接続イベント登録で利用する共通コンテキスト */
-export type ConnectionRegistrationContext = {
+type ConnectionRegistrationContext = {
   deps: ConnectionHandlerDeps;
   socketOutputAdapters: SocketOutputAdapters;
 };
diff --git a/apps/server/src/network/handlers/registration/createSocketRegistrationContext.ts b/apps/server/src/network/handlers/registration/createSocketRegistrationContext.ts
index 1eb2d3e..a8e03b4 100644
--- a/apps/server/src/network/handlers/registration/createSocketRegistrationContext.ts
+++ b/apps/server/src/network/handlers/registration/createSocketRegistrationContext.ts
@@ -7,7 +7,7 @@
 import { createServerSocketOnBridge } from "../socketEventBridge";
 
 /** 受信イベント登録で利用する共通コンテキスト */
-export type SocketRegistrationContext = {
+type SocketRegistrationContext = {
   onEvent: ReturnType<typeof createServerSocketOnBridge>["onEvent"];
   guardOnEvent: ReturnType<typeof createPayloadGuard>["guardOnEvent"];
 };
diff --git a/apps/server/src/network/handlers/registration/index.ts b/apps/server/src/network/handlers/registration/index.ts
index d66cde1..9554126 100644
--- a/apps/server/src/network/handlers/registration/index.ts
+++ b/apps/server/src/network/handlers/registration/index.ts
@@ -7,15 +7,8 @@
 export {
   createSocketRegistrationContext,
 } from "./createSocketRegistrationContext";
-export type {
-  SocketRegistrationContext,
-} from "./createSocketRegistrationContext";
 
 /** 接続イベント登録コンテキストを再公開する */
 export {
   createConnectionRegistrationContext,
 } from "./createConnectionRegistrationContext";
-export type {
-  ConnectionHandlerDeps,
-  ConnectionRegistrationContext,
-} from "./createConnectionRegistrationContext";
diff --git a/apps/server/src/network/types/connectionPorts.ts b/apps/server/src/network/types/connectionPorts.ts
index 110e570..b025c7b 100644
--- a/apps/server/src/network/types/connectionPorts.ts
+++ b/apps/server/src/network/types/connectionPorts.ts
@@ -20,14 +20,14 @@
 } from "@server/domains/room/application/ports/roomUseCasePorts";
 
 /** 接続時のルーム処理で利用する入力ポート集合 */
-export type ConnectionRoomPort =
+type ConnectionRoomPort =
   & JoinRoomPort
   & FindRoomByOwnerPort
   & FindRoomByPlayerPort
   & RoomPhaseTransitionPort;
 
 /** 接続時のゲームランタイム解決で利用する入力ポート集合 */
-export type ConnectionRuntimePort =
+type ConnectionRuntimePort =
   & EnsureGameRuntimePort
   & FindGameByRoomPort
   & FindGameByPlayerPort;
diff --git a/package.json b/package.json
index bca0277..c586fb4 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,9 @@
   "description": "",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "shared:prune": "node scripts/ts-prune-filter.mjs packages/shared/tsconfig.json packages/shared/ts-prune-allowlist.json",
+    "shared:prune:check": "node scripts/ts-prune-filter.mjs packages/shared/tsconfig.json packages/shared/ts-prune-allowlist.json --fail-on-findings"
   },
   "keywords": [],
   "author": "",
diff --git a/packages/shared/ts-prune-allowlist.json b/packages/shared/ts-prune-allowlist.json
new file mode 100644
index 0000000..e63bfc8
--- /dev/null
+++ b/packages/shared/ts-prune-allowlist.json
@@ -0,0 +1,7 @@
+{
+  "ignoreFiles": [
+    "packages/shared/src/index.ts",
+    "packages/shared/src/config/index.ts"
+  ],
+  "ignoreExports": []
+}
\ No newline at end of file
diff --git a/scripts/ts-prune-filter.mjs b/scripts/ts-prune-filter.mjs
new file mode 100644
index 0000000..37a48a5
--- /dev/null
+++ b/scripts/ts-prune-filter.mjs
@@ -0,0 +1,64 @@
+import { readFileSync } from "node:fs";
+import { spawnSync } from "node:child_process";
+
+const [, , tsconfigPath, allowlistPath, ...restArgs] = process.argv;
+
+if (!tsconfigPath || !allowlistPath) {
+  console.error(
+    "Usage: node scripts/ts-prune-filter.mjs <tsconfigPath> <allowlistPath> [--fail-on-findings]",
+  );
+  process.exit(2);
+}
+
+const failOnFindings = restArgs.includes("--fail-on-findings");
+
+const allowlist = JSON.parse(readFileSync(allowlistPath, "utf8"));
+const ignoreFiles = new Set(allowlist.ignoreFiles ?? []);
+const ignoreExports = new Set(allowlist.ignoreExports ?? []);
+
+const run = spawnSync(
+  "pnpm",
+  ["dlx", "ts-prune", "-p", tsconfigPath],
+  { encoding: "utf8" },
+);
+
+if (run.error) {
+  console.error(run.error.message);
+  process.exit(2);
+}
+
+const stdout = run.stdout ?? "";
+const stderr = run.stderr ?? "";
+if (stderr.trim()) {
+  process.stderr.write(stderr);
+}
+
+const lines = stdout
+  .split("\n")
+  .map((line) => line.trimEnd())
+  .filter((line) => line.length > 0);
+
+const findings = lines.filter((line) => {
+  const match = line.match(/^(.+?):\d+\s+-\s+([^\s].*?)\s*(?:\(used in module\))?$/);
+  if (!match) {
+    return true;
+  }
+
+  const filePath = match[1];
+  const symbolName = match[2];
+  if (ignoreFiles.has(filePath)) {
+    return false;
+  }
+
+  return !ignoreExports.has(`${filePath}#${symbolName}`);
+});
+
+if (findings.length > 0) {
+  process.stdout.write(`${findings.join("\n")}\n`);
+}
+
+if (failOnFindings && findings.length > 0) {
+  process.exit(1);
+}
+
+process.exit(0);
\ No newline at end of file