diff --git a/template/tinyvue/src/utils/base-utils.ts b/template/tinyvue/src/utils/base-utils.ts
index 26490c1..4fb69ab 100644
--- a/template/tinyvue/src/utils/base-utils.ts
+++ b/template/tinyvue/src/utils/base-utils.ts
@@ -1,5 +1,11 @@
 import { CommonError } from '@/types/global';
 
+/**
+ * Determines whether a value conforms to the CommonError shape.
+ *
+ * @param error - The value to test for a CommonError-like object
+ * @returns `true` if `error` is a non-null object that has a `message` property of type `string`, `false` otherwise.
+ */
 export function isCommonError(error: unknown): error is CommonError {
   return (
     typeof error === 'object' &&
@@ -28,4 +34,4 @@ export default class BaseUtils {
       return new Error(String(error));
     }
   }
-}
+}
\ No newline at end of file