diff --git a/extensions/feishu/src/comment-shared.ts b/extensions/feishu/src/comment-shared.ts
index 072b1ffcf9b..80fa9ac630f 100644
--- a/extensions/feishu/src/comment-shared.ts
+++ b/extensions/feishu/src/comment-shared.ts
@@ -25,6 +25,10 @@ export function asRecord(value: unknown): Record<string, unknown> | undefined {
   return value as Record<string, unknown>;
 }
 
+export function hasNonEmptyString(value: unknown): value is string {
+  return typeof value === "string" && value.trim().length > 0;
+}
+
 export function extractCommentElementText(element: unknown): string | undefined {
   if (!isRecord(element)) {
     return undefined;
diff --git a/extensions/feishu/src/security-audit.ts b/extensions/feishu/src/security-audit.ts
index 082700c885b..9e9e8918b5f 100644
--- a/extensions/feishu/src/security-audit.ts
+++ b/extensions/feishu/src/security-audit.ts
@@ -1,10 +1,6 @@
 import type { OpenClawConfig } from "openclaw/plugin-sdk/config-runtime";
 import { hasConfiguredSecretInput } from "openclaw/plugin-sdk/setup";
-import { asRecord } from "./comment-shared.js";
-
-function hasNonEmptyString(value: unknown): boolean {
-  return typeof value === "string" && value.trim().length > 0;
-}
+import { asRecord, hasNonEmptyString } from "./comment-shared.js";
 
 function isFeishuDocToolEnabled(cfg: OpenClawConfig): boolean {
   const channels = asRecord(cfg.channels);