diff --git a/docs/superpowers/plans/2026-08-27-ui-asset-and-skin.md b/docs/superpowers/plans/2026-08-27-ui-asset-and-skin.md
index 72b6d43..c56beda 100644
--- a/docs/superpowers/plans/2026-08-27-ui-asset-and-skin.md
+++ b/docs/superpowers/plans/2026-08-27-ui-asset-and-skin.md
@@ -691,8 +691,11 @@ export function validateOverrides(frameworkUiDir, overrideDir) {
     }
 
     // Spine 贴图豁免尺寸校验（区域坐标在 .atlas 内，整套替换时自洽）
+    // 注意：override 是否自带 .meta 必须用 existsSync 查磁盘——listAssets 排除了 .meta，
+    // 故 ovSet 里永远没有 .meta 项，用 ovSet.has 会让例外通道永不生效。
+    const metaPath = join(overrideDir, ...`${rel}.meta`.split(posix.sep));
     const needSizeCheck =
-      isImage(rel) && !isSpine(rel) && !ovSet.has(`${rel}.meta`);
+      isImage(rel) && !isSpine(rel) && !existsSync(metaPath);
     if (needSizeCheck) {
       const a = readPngSize(join(frameworkUiDir, ...rel.split(posix.sep)));
       const b = readPngSize(join(overrideDir, ...rel.split(posix.sep)));