diff --git a/substore/README.md b/substore/README.md
index cd74603..f432bb2 100644
--- a/substore/README.md
+++ b/substore/README.md
@@ -5,7 +5,7 @@
 `common.js` 是公共工具库，各处理脚本会按下面的 raw 地址自动加载：
 
 ```text
-https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-4
+https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-5
 ```
 
 ## 推荐使用顺序
diff --git a/substore/alphaair-rename.js b/substore/alphaair-rename.js
index 73ccc51..a37716d 100644
--- a/substore/alphaair-rename.js
+++ b/substore/alphaair-rename.js
@@ -6,10 +6,13 @@
  * - 不追加订阅后缀，整合订阅最后仍交给 rename.js 处理
  */
 // noinspection JSUnusedGlobalSymbols
-const COMMON_SCRIPT_URL = 'https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-4';
+const COMMON_SCRIPT_URL = 'https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-5';
+const hasCurrentRenameUtils = utils => Boolean(
+    utils && typeof utils.normalizeLeadingMojibakeFlag === 'function'
+);
 
 async function loadRenameUtils() {
-    if (typeof globalThis !== 'undefined' && globalThis.SubStoreRenameUtils) {
+    if (typeof globalThis !== 'undefined' && hasCurrentRenameUtils(globalThis.SubStoreRenameUtils)) {
         return globalThis.SubStoreRenameUtils;
     }
 
@@ -22,6 +25,9 @@ async function loadRenameUtils() {
     }
 
     new Function(String(script))();
+    if (!hasCurrentRenameUtils(globalThis.SubStoreRenameUtils)) {
+        throw new Error('Loaded common.js is missing current rename utilities');
+    }
     return globalThis.SubStoreRenameUtils;
 }
 
diff --git a/substore/common.js b/substore/common.js
index 23ec6e7..8f4ce27 100644
--- a/substore/common.js
+++ b/substore/common.js
@@ -2,7 +2,7 @@
  * Sub-Store 节点命名公共工具
  *
  * 远程引用地址：
- * https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-4
+ * https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-5
  */
 (function (root) {
     const regexSpecialChars = new Set(['.', '*', '+', '?', '^', '$', '{', '}', '(', ')', '|', '[', ']', '\\']);
diff --git a/substore/liangxin-rename.js b/substore/liangxin-rename.js
index a975f9f..f8c2872 100644
--- a/substore/liangxin-rename.js
+++ b/substore/liangxin-rename.js
@@ -3,10 +3,13 @@
  * 负责去掉高速、BGP、CMCU 等 LiangXin 线路描述，保留地区、序号和倍率。
  */
 // noinspection JSUnusedGlobalSymbols
-const COMMON_SCRIPT_URL = 'https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-4';
+const COMMON_SCRIPT_URL = 'https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-5';
+const hasCurrentRenameUtils = utils => Boolean(
+    utils && typeof utils.normalizeLeadingMojibakeFlag === 'function'
+);
 
 async function loadRenameUtils() {
-    if (typeof globalThis !== 'undefined' && globalThis.SubStoreRenameUtils) {
+    if (typeof globalThis !== 'undefined' && hasCurrentRenameUtils(globalThis.SubStoreRenameUtils)) {
         return globalThis.SubStoreRenameUtils;
     }
 
@@ -19,6 +22,9 @@ async function loadRenameUtils() {
     }
 
     new Function(String(script))();
+    if (!hasCurrentRenameUtils(globalThis.SubStoreRenameUtils)) {
+        throw new Error('Loaded common.js is missing current rename utilities');
+    }
     return globalThis.SubStoreRenameUtils;
 }
 
diff --git a/substore/peiqian-rename.js b/substore/peiqian-rename.js
index bf40542..8c0d48f 100644
--- a/substore/peiqian-rename.js
+++ b/substore/peiqian-rename.js
@@ -3,10 +3,13 @@
  * 负责清理推荐、用途、hy2、倍率、线路特征和提供商等 PeiQian 节点文案。
  */
 // noinspection JSUnusedGlobalSymbols
-const COMMON_SCRIPT_URL = 'https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-4';
+const COMMON_SCRIPT_URL = 'https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-5';
+const hasCurrentRenameUtils = utils => Boolean(
+    utils && typeof utils.normalizeLeadingMojibakeFlag === 'function'
+);
 
 async function loadRenameUtils() {
-    if (typeof globalThis !== 'undefined' && globalThis.SubStoreRenameUtils) {
+    if (typeof globalThis !== 'undefined' && hasCurrentRenameUtils(globalThis.SubStoreRenameUtils)) {
         return globalThis.SubStoreRenameUtils;
     }
 
@@ -19,6 +22,9 @@ async function loadRenameUtils() {
     }
 
     new Function(String(script))();
+    if (!hasCurrentRenameUtils(globalThis.SubStoreRenameUtils)) {
+        throw new Error('Loaded common.js is missing current rename utilities');
+    }
     return globalThis.SubStoreRenameUtils;
 }
 
diff --git a/substore/rename.js b/substore/rename.js
index 9f9434c..84e55d8 100644
--- a/substore/rename.js
+++ b/substore/rename.js
@@ -5,10 +5,13 @@
  * - 基于归一化后的完整名称做精准去重
  */
 // noinspection JSUnusedGlobalSymbols
-const COMMON_SCRIPT_URL = 'https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-4';
+const COMMON_SCRIPT_URL = 'https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-5';
+const hasCurrentRenameUtils = utils => Boolean(
+    utils && typeof utils.normalizeLeadingMojibakeFlag === 'function'
+);
 
 async function loadRenameUtils() {
-    if (typeof globalThis !== 'undefined' && globalThis.SubStoreRenameUtils) {
+    if (typeof globalThis !== 'undefined' && hasCurrentRenameUtils(globalThis.SubStoreRenameUtils)) {
         return globalThis.SubStoreRenameUtils;
     }
 
@@ -21,6 +24,9 @@ async function loadRenameUtils() {
     }
 
     new Function(String(script))();
+    if (!hasCurrentRenameUtils(globalThis.SubStoreRenameUtils)) {
+        throw new Error('Loaded common.js is missing current rename utilities');
+    }
     return globalThis.SubStoreRenameUtils;
 }
 
diff --git a/substore/sntp-rename.js b/substore/sntp-rename.js
index 98b3e52..09d34d6 100644
--- a/substore/sntp-rename.js
+++ b/substore/sntp-rename.js
@@ -4,10 +4,13 @@
  * 维护说明：仅需修改 featureMap 字典即可，底部逻辑永远无需改动。
  */
 // noinspection JSUnusedGlobalSymbols
-const COMMON_SCRIPT_URL = 'https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-4';
+const COMMON_SCRIPT_URL = 'https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-5';
+const hasCurrentRenameUtils = utils => Boolean(
+    utils && typeof utils.normalizeLeadingMojibakeFlag === 'function'
+);
 
 async function loadRenameUtils() {
-    if (typeof globalThis !== 'undefined' && globalThis.SubStoreRenameUtils) {
+    if (typeof globalThis !== 'undefined' && hasCurrentRenameUtils(globalThis.SubStoreRenameUtils)) {
         return globalThis.SubStoreRenameUtils;
     }
 
@@ -20,6 +23,9 @@ async function loadRenameUtils() {
     }
 
     new Function(String(script))();
+    if (!hasCurrentRenameUtils(globalThis.SubStoreRenameUtils)) {
+        throw new Error('Loaded common.js is missing current rename utilities');
+    }
     return globalThis.SubStoreRenameUtils;
 }
 
diff --git a/substore/yuetong-rename.js b/substore/yuetong-rename.js
index 641b1cb..ae9cf1c 100644
--- a/substore/yuetong-rename.js
+++ b/substore/yuetong-rename.js
@@ -4,10 +4,13 @@
  * 按地区稳定归并后重新连续编号，避免专属/普通节点撞号。
  */
 // noinspection JSUnusedGlobalSymbols
-const COMMON_SCRIPT_URL = 'https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-4';
+const COMMON_SCRIPT_URL = 'https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-5';
+const hasCurrentRenameUtils = utils => Boolean(
+    utils && typeof utils.normalizeLeadingMojibakeFlag === 'function'
+);
 
 async function loadRenameUtils() {
-    if (typeof globalThis !== 'undefined' && globalThis.SubStoreRenameUtils) {
+    if (typeof globalThis !== 'undefined' && hasCurrentRenameUtils(globalThis.SubStoreRenameUtils)) {
         return globalThis.SubStoreRenameUtils;
     }
 
@@ -20,6 +23,9 @@ async function loadRenameUtils() {
     }
 
     new Function(String(script))();
+    if (!hasCurrentRenameUtils(globalThis.SubStoreRenameUtils)) {
+        throw new Error('Loaded common.js is missing current rename utilities');
+    }
     return globalThis.SubStoreRenameUtils;
 }