Handle empty sanitized messages in chat name generation logic

Author: Roman Snapko

packages/server/api/src/app/ai/chat/ai-chat.service.ts

@@ -16,6 +16,7 @@ import {
   CustomAuthConnectionValue,
   ErrorCode,
   GeneratedChatName,
+  isEmpty,
   removeConnectionBrackets,
 } from '@openops/shared';
 import { generateObject, LanguageModel, ModelMessage, UIMessage } from 'ai';
@@ -112,6 +113,10 @@ export async function generateChatName(
   const sanitizedMessages: ModelMessage[] =
     sanitizeMessagesForChatName(messages);
 
+  if (isEmpty(sanitizedMessages.length)) {
+    return { name: null, isGenerated: false };
+  }
+
   const result = await generateObject({
     model: languageModel,
     system: systemPrompt,