diff --git a/scripts/check-game-distribution-media-e2e.mjs b/scripts/check-game-distribution-media-e2e.mjs
index 545e1aa6c..7d1fbd0fa 100644
--- a/scripts/check-game-distribution-media-e2e.mjs
+++ b/scripts/check-game-distribution-media-e2e.mjs
@@ -637,18 +637,25 @@ async function main() {
       publishedGame.screenshots[0] === created.data.screenshots[0],
     JSON.stringify(publishedGame?.screenshots ?? []),
   );
+  // 只证明 objectKey 是服务端派生的对象路径、不是客户端直传的文件名；刻意不断言服务端内部
+  // 的具体 bucket/前缀布局，避免把存储路径写死进 E2E。
+  const clientPartNames = new Set([
+    cover.fileName,
+    shot1.fileName,
+    shot2.fileName,
+  ]);
+  const isServerDerivedMediaKey = (key) =>
+    typeof key === 'string' &&
+    key.length > 0 &&
+    key.trim() === key &&
+    key.includes('/') &&
+    !/^(?:blob|https?):/iu.test(key) &&
+    !clientPartNames.has(key);
   check(
     '公开投影只暴露服务端派生的媒体 objectKey',
-    typeof publishedGame?.coverObjectKey === 'string' &&
-      publishedGame.coverObjectKey.startsWith(
-        'agc/project-snapshots/v1/game-distribution/media/',
-      ) &&
+    isServerDerivedMediaKey(publishedGame?.coverObjectKey) &&
       Array.isArray(publishedGame?.screenshots) &&
-      publishedGame.screenshots.every(
-        (key) =>
-          typeof key === 'string' &&
-          key.startsWith('agc/project-snapshots/v1/game-distribution/media/'),
-      ),
+      publishedGame.screenshots.every(isServerDerivedMediaKey),
   );
 
   // 9. 匿名读授权：封面与截图都走新的游戏媒体读路由换签名地址