diff --git a/src/plugins/built_in/at_user_plugin/__init__.py b/src/plugins/built_in/at_user_plugin/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/src/plugins/built_in/at_user_plugin/_manifest.json b/src/plugins/built_in/at_user_plugin/_manifest.json
new file mode 100644
index 000000000..f4b038728
--- /dev/null
+++ b/src/plugins/built_in/at_user_plugin/_manifest.json
@@ -0,0 +1,11 @@
+{
+    "manifest_version": 1,
+    "name": "At User Plugin",
+    "description": "一个通过名字艾特用户的插件",
+    "author": "Kilo Code",
+    "version": "1.0.0",
+    "requirements": [],
+    "license": "MIT",
+    "keywords": ["at", "mention", "user"],
+    "categories": ["Chat", "Utility"]
+}
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diff --git a/src/plugins/built_in/at_user_plugin/plugin.py b/src/plugins/built_in/at_user_plugin/plugin.py
new file mode 100644
index 000000000..4a44ed035
--- /dev/null
+++ b/src/plugins/built_in/at_user_plugin/plugin.py
@@ -0,0 +1,115 @@
+from typing import List, Tuple, Type
+from src.plugin_system import (
+    BasePlugin,
+    BaseCommand,
+    CommandInfo,
+    register_plugin,
+    BaseAction,
+    ActionInfo,
+    ActionActivationType
+)
+from src.person_info.person_info import get_person_info_manager
+from src.common.logger import get_logger
+from src.plugin_system import database_api
+logger = get_logger(__name__)
+
+class AtAction(BaseAction):
+    """发送艾特消息"""
+
+    # === 基本信息（必须填写）===
+    action_name = "at_user"
+    action_description = "发送艾特消息"
+    activation_type = ActionActivationType.LLM_JUDGE  # 消息接收时激活(?)
+    parallel_action = False
+
+    # === 功能描述（必须填写）===
+    action_parameters = {
+        "user_name": "需要艾特用户的名字",
+        "at_message": "艾特用户时要发送的消,注意消息里不要有@"
+    }
+    action_require = ["当需要艾特某个用户时使用","当你需要提醒特定用户查看消息时使用","在回复中需要明确指向某个用户时使用"]
+    llm_judge_prompt = """
+    判定是否需要使用艾特用户动作的条件：
+    1. 你在对话中提到了某个具体的人，并且需要提醒他/她。
+    3. 上下文明确需要你艾特一个或多个人。
+
+    请回答"是"或"否"。
+    """
+    associated_types = ["text"]
+
+    async def execute(self) -> Tuple[bool, str]:
+        """执行艾特用户的动作"""
+        user_name = self.action_data.get("user_name")
+        at_message = self.action_data.get("at_message")
+
+        if not user_name or not at_message:
+            logger.warning("艾特用户的动作缺少必要参数。")
+            await self.store_action_info(
+                action_build_into_prompt=True,
+                action_prompt_display=f"执行了艾特用户动作：艾特用户 {user_name} 并发送消息: {at_message},失败了,因为没有提供必要参数",
+                action_done=False
+            )
+            return False, "缺少必要参数"
+
+
+        user_info = await get_person_info_manager().get_person_info_by_name(user_name)
+        if not user_info or not user_info.get("user_id"):
+            logger.info(f"找不到名为 '{user_name}' 的用户。")
+            return False, "用户不存在"
+        await self.send_command(
+            "SEND_AT_MESSAGE",
+            args={"qq_id": user_info.get("user_id"), "text": at_message},
+            display_message=f"艾特用户 {user_name} 并发送消息: {at_message}"
+        )
+        await self.store_action_info(
+                action_build_into_prompt=True,
+                action_prompt_display=f"执行了艾特用户动作：艾特用户 {user_name} 并发送消息: {at_message}",
+                action_done=True
+            )
+
+        logger.info("艾特用户的动作已触发，但具体实现待完成。")
+        return True, "艾特用户的动作已触发，但具体实现待完成。"
+
+class AtCommand(BaseCommand):
+    command_name: str = "at_user"
+    description: str = "通过名字艾特用户"
+    command_pattern: str = r"/at\s+@?(?P<name>[\S]+)(?:\s+(?P<text>.*))?"
+
+    async def execute(self) -> Tuple[bool, str, bool]:
+        name = self.matched_groups.get("name")
+        text = self.matched_groups.get("text", "")
+
+        if not name:
+            await self.send_text("请指定要艾特的用户名称。")
+            return False, "缺少用户名称", True
+
+        person_info_manager = get_person_info_manager()
+        user_info = await person_info_manager.get_person_info_by_name(name)
+
+        if not user_info or not user_info.get("user_id"):
+            await self.send_text(f"找不到名为 '{name}' 的用户。")
+            return False, "用户不存在", True
+
+        user_id = user_info.get("user_id")
+        
+        await self.send_command(
+            "SEND_AT_MESSAGE",
+            args={"qq_id": user_id, "text": text},
+            display_message=f"艾特用户 {name} 并发送消息: {text}"
+        )
+        
+        return True, "艾特消息已发送", True
+
+@register_plugin
+class AtUserPlugin(BasePlugin):
+    plugin_name: str = "at_user_plugin"
+    enable_plugin: bool = True
+    dependencies: list[str] = []
+    python_dependencies: list[str] = []
+    config_file_name: str = "config.toml"
+    config_schema: dict = {}
+    
+    def get_plugin_components(self) -> List[Tuple[CommandInfo | ActionInfo, Type[BaseCommand] | Type[BaseAction]]]:
+        return [
+            (AtAction.get_action_info(), AtAction),
+        ]
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