diff --git a/backend/src/entities/ai/ai-conversation-history/application/response-objects/user-ai-chat.ro.ts b/backend/src/entities/ai/ai-conversation-history/application/response-objects/user-ai-chat.ro.ts
index d527c14f9..c1d84da9e 100644
--- a/backend/src/entities/ai/ai-conversation-history/application/response-objects/user-ai-chat.ro.ts
+++ b/backend/src/entities/ai/ai-conversation-history/application/response-objects/user-ai-chat.ro.ts
@@ -1,19 +1,35 @@
+import { ApiProperty } from '@nestjs/swagger';
 import { MessageRole } from '../../ai-chat-messages/message-role.enum.js';
 
 export class AiChatMessageRO {
+	@ApiProperty({ description: 'Unique message identifier' })
 	id: string;
+
+	@ApiProperty({ description: 'Message content' })
 	message: string;
+
+	@ApiProperty({ enum: MessageRole, description: 'Role of the message sender (user or ai)' })
 	role: MessageRole;
+
+	@ApiProperty({ description: 'Message creation timestamp' })
 	created_at: Date;
 }
 
 export class UserAiChatRO {
+	@ApiProperty({ description: 'Unique chat identifier' })
 	id: string;
+
+	@ApiProperty({ description: 'Chat name' })
 	name: string;
+
+	@ApiProperty({ description: 'Chat creation timestamp' })
 	created_at: Date;
+
+	@ApiProperty({ description: 'Chat last update timestamp' })
 	updated_at: Date;
 }
 
 export class UserAiChatWithMessagesRO extends UserAiChatRO {
+	@ApiProperty({ type: AiChatMessageRO, isArray: true, description: 'List of messages in the chat' })
 	messages: AiChatMessageRO[];
 }