diff --git a/libs/bot-commander/src/index.ts b/libs/bot-commander/src/index.ts
index 90a6394..32ddba6 100644
--- a/libs/bot-commander/src/index.ts
+++ b/libs/bot-commander/src/index.ts
@@ -14,7 +14,7 @@ import type {
   IStarResolveResult,
 } from './types';
 
-export { CompareFunc, FuncName, equalFunc, regex };
+export { CompareFunc, FuncName, regex };
 
 export interface IArgv<T> {
   raw: mri.Argv<T>;
@@ -215,6 +215,29 @@ export class CommandCenter<C extends Record<string, any>> {
       console.log('no handler found for', str);
     }
   }
+
+  help() {
+    let text = '';
+    const prefix = this.prefixes.filter(Boolean).join('、');
+    if (prefix) {
+      text += `前缀：${prefix}\n`;
+    }
+
+    text += '支持的命令：\n';
+
+    this.registry.handlers.forEach(([key, [_, compareFunc]]) => {
+      text += `- ${key}: ${compareFunc.name}\n`;
+    });
+
+    this.regexRegistry.handlers.forEach(([key, [_, compareFunc]]) => {
+      text += `- ${key}: ${compareFunc.name}\n`;
+    });
+    if (this.starHandlers) {
+      text += `- *: fallbackHandler\n`;
+    }
+
+    return text;
+  }
 }
 
 export class StopError extends Error {
diff --git a/src/im/commands/common.ts b/src/im/commands/common.ts
index af6af1c..8ba942c 100644
--- a/src/im/commands/common.ts
+++ b/src/im/commands/common.ts
@@ -31,26 +31,7 @@ export function registerCommonCommand(it: IMCommandCenter) {
   });
 
   it.on('help', async ({ bot }) => {
-    const text = new StringBuilder();
-    const prefix = it.prefixes.filter(Boolean).join('、');
-    if (prefix) {
-      text.add('前缀：' + prefix);
-    }
-
-    text.add('支持的命令：', true);
-
-    it.registry.handlers.forEach(([key, [_, compareFunc]]) => {
-      text.add(`- ${key}: ${compareFunc.name}`);
-    });
-
-    it.regexRegistry.handlers.forEach(([key, [_, compareFunc]]) => {
-      text.add(`- ${key}: ${compareFunc.name}`);
-    });
-    if (it.fallbackHandler) {
-      text.add(`- *: fallbackHandler`);
-    }
-
-    await bot.replyText(text.build());
+    await bot.replyText(it.help());
   });
 
   it.on('ping', async ({ bot }) => {
diff --git a/src/im/commands/opensumi.ts b/src/im/commands/opensumi.ts
index c85f16d..7bbff18 100644
--- a/src/im/commands/opensumi.ts
+++ b/src/im/commands/opensumi.ts
@@ -1,6 +1,5 @@
 import { RC_WORKFLOW_FILE } from '@/constants/opensumi';
 import { markdown } from '@/github/dingtalk';
-import { equalFunc } from '@opensumi/bot-commander';
 
 import { IBotAdapter } from '../types';
 
@@ -247,6 +246,5 @@ export function registerOpenSumiCommand(it: IMCommandCenter) {
       await bot.replyText('Starts generating monthly report.');
     },
     [],
-    equalFunc,
   );
 }