diff --git a/extensions/feishu/src/monitor.account.ts b/extensions/feishu/src/monitor.account.ts
index 5dc6c622a8a..7bed5c68f05 100644
--- a/extensions/feishu/src/monitor.account.ts
+++ b/extensions/feishu/src/monitor.account.ts
@@ -13,6 +13,7 @@ import { handleFeishuCardAction, type FeishuCardActionEvent } from "./card-actio
 import { maybeHandleFeishuQuickActionMenu } from "./card-ux-launcher.js";
 import { createEventDispatcher } from "./client.js";
 import { handleFeishuCommentEvent } from "./comment-handler.js";
+import { isRecord } from "./comment-shared.js";
 import {
   hasProcessedFeishuMessage,
   recordProcessedFeishuMessage,
@@ -170,10 +171,6 @@ type FeishuBotMenuEvent = {
   };
 };
 
-function isRecord(value: unknown): value is Record<string, unknown> {
-  return typeof value === "object" && value !== null;
-}
-
 function readString(value: unknown): string | undefined {
   return typeof value === "string" ? value : undefined;
 }