diff --git a/nonebot_plugin_marshoai/cache/decos.py b/nonebot_plugin_marshoai/cache/decos.py
new file mode 100644
index 00000000..dd15e79a
--- /dev/null
+++ b/nonebot_plugin_marshoai/cache/decos.py
@@ -0,0 +1,39 @@
+from ..models import Cache
+
+cache = Cache()
+
+
+def from_cache(key):
+    """
+    当缓存中有数据时，直接返回缓存中的数据，否则执行函数并将结果存入缓存
+    """
+
+    def decorator(func):
+        async def wrapper(*args, **kwargs):
+            cached = cache.get(key)
+            if cached:
+                return cached
+            else:
+                result = await func(*args, **kwargs)
+                cache.set(key, result)
+                return result
+
+        return wrapper
+
+    return decorator
+
+
+def update_to_cache(key):
+    """
+    执行函数并将结果存入缓存
+    """
+
+    def decorator(func):
+        async def wrapper(*args, **kwargs):
+            result = await func(*args, **kwargs)
+            cache.set(key, result)
+            return result
+
+        return wrapper
+
+    return decorator
diff --git a/nonebot_plugin_marshoai/decos.py b/nonebot_plugin_marshoai/decos.py
deleted file mode 100644
index 66a12e30..00000000
--- a/nonebot_plugin_marshoai/decos.py
+++ /dev/null
@@ -1,15 +0,0 @@
-from .instances import cache
-
-
-def from_cache(key):
-    def decorator(func):
-        def wrapper(*args, **kwargs):
-            cached = cache.get(key)
-            if cached:
-                return cached
-            else:
-                result = func(*args, **kwargs)
-                cache.set(key, result)
-                return result
-
-        return wrapper
diff --git a/nonebot_plugin_marshoai/handler.py b/nonebot_plugin_marshoai/handler.py
new file mode 100644
index 00000000..e67a96c5
--- /dev/null
+++ b/nonebot_plugin_marshoai/handler.py
@@ -0,0 +1,241 @@
+import json
+from typing import Optional, Tuple, Union
+
+from azure.ai.inference.models import (
+    CompletionsFinishReason,
+    ImageContentItem,
+    ImageUrl,
+    TextContentItem,
+    ToolMessage,
+    UserMessage,
+)
+from nonebot.adapters import Bot, Event
+from nonebot.log import logger
+from nonebot.matcher import (
+    Matcher,
+    current_bot,
+    current_event,
+    current_matcher,
+)
+from nonebot_plugin_alconna.uniseg import UniMessage, UniMsg
+from openai import AsyncOpenAI
+from openai.types.chat import ChatCompletion, ChatCompletionMessage
+
+from .config import config
+from .constants import SUPPORT_IMAGE_MODELS
+from .instances import target_list
+from .models import MarshoContext
+from .plugin.func_call.caller import get_function_calls
+from .plugin.func_call.models import SessionContext
+from .util import (
+    extract_content_and_think,
+    get_image_b64,
+    get_nickname_by_user_id,
+    get_prompt,
+    make_chat_openai,
+    parse_richtext,
+)
+
+
+class MarshoHandler:
+    def __init__(
+        self,
+        client: AsyncOpenAI,
+        context: MarshoContext,
+    ):
+        self.client = client
+        self.context = context
+        self.bot: Bot = current_bot.get()
+        self.event: Event = current_event.get()
+        # self.state: T_State = current_handler.get().state
+        self.matcher: Matcher = current_matcher.get()
+        self.message_id: str = UniMessage.get_message_id(self.event)
+        self.target = UniMessage.get_target(self.event)
+
+    async def process_user_input(
+        self, user_input: UniMsg, model_name: str
+    ) -> Union[str, list]:
+        """
+        处理用户输入为可输入 API 的格式，并添加昵称提示
+        """
+        is_support_image_model = (
+            model_name.lower()
+            in SUPPORT_IMAGE_MODELS + config.marshoai_additional_image_models
+        )
+        usermsg = [] if is_support_image_model else ""
+        user_nickname = await get_nickname_by_user_id(self.event.get_user_id())
+        if user_nickname:
+            nickname_prompt = f"\n此消息的说话者为: {user_nickname}"
+        else:
+            nickname_prompt = ""
+        for i in user_input:  # type: ignore
+            if i.type == "text":
+                if is_support_image_model:
+                    usermsg += [TextContentItem(text=i.data["text"] + nickname_prompt).as_dict()]  # type: ignore
+                else:
+                    usermsg += str(i.data["text"] + nickname_prompt)  # type: ignore
+            elif i.type == "image":
+                if is_support_image_model:
+                    usermsg.append(  # type: ignore
+                        ImageContentItem(
+                            image_url=ImageUrl(  # type: ignore
+                                url=str(await get_image_b64(i.data["url"]))  # type: ignore
+                            )  # type: ignore
+                        ).as_dict()  # type: ignore
+                    )  # type: ignore
+                    logger.info(f"输入图片 {i.data['url']}")
+                elif config.marshoai_enable_support_image_tip:
+                    await UniMessage(
+                        "*此模型不支持图片处理或管理员未启用此模型的图片支持。图片将被忽略。"
+                    ).send()
+        return usermsg  # type: ignore
+
+    async def handle_single_chat(
+        self,
+        user_message: Union[str, list],
+        model_name: str,
+        tools_list: list,
+        tool_message: Optional[list] = None,
+    ) -> ChatCompletion:
+        """
+        处理单条聊天
+        """
+
+        context_msg = get_prompt(model_name) + (
+            self.context.build(self.target.id, self.target.private)
+        )
+        response = await make_chat_openai(
+            client=self.client,
+            msg=context_msg + [UserMessage(content=user_message).as_dict()] + (tool_message if tool_message else []),  # type: ignore
+            model_name=model_name,
+            tools=tools_list if tools_list else None,
+        )
+        return response
+
+    async def handle_function_call(
+        self,
+        completion: ChatCompletion,
+        user_message: Union[str, list],
+        model_name: str,
+        tools_list: list,
+    ):
+        # function call
+        # 需要获取额外信息，调用函数工具
+        tool_msg = []
+        choice = completion.choices[0]
+        # await UniMessage(str(response)).send()
+        tool_calls = choice.message.tool_calls
+        # try:
+        #     if tool_calls[0]["function"]["name"].startswith("$"):
+        #         choice.message.tool_calls[0][
+        #             "type"
+        #         ] = "builtin_function"  # 兼容 moonshot AI 内置函数的临时方案
+        # except:
+        #     pass
+        tool_msg.append(choice.message)
+        for tool_call in tool_calls:
+            try:
+                function_args = json.loads(tool_call.function.arguments)
+            except json.JSONDecodeError:
+                function_args = json.loads(
+                    tool_call.function.arguments.replace("'", '"')
+                )
+            # 删除args的placeholder参数
+            if "placeholder" in function_args:
+                del function_args["placeholder"]
+            logger.info(
+                f"调用函数 {tool_call.function.name.replace('-', '.')}\n参数:"
+                + "\n".join([f"{k}={v}" for k, v in function_args.items()])
+            )
+            await UniMessage(
+                f"调用函数 {tool_call.function.name.replace('-', '.')}\n参数:"
+                + "\n".join([f"{k}={v}" for k, v in function_args.items()])
+            ).send()
+            if caller := get_function_calls().get(tool_call.function.name):
+                logger.debug(f"调用插件函数 {caller.full_name}")
+                # 权限检查，规则检查 TODO
+                # 实现依赖注入，检查函数参数及参数注解类型，对Event类型的参数进行注入
+                func_return = await caller.with_ctx(
+                    SessionContext(
+                        bot=self.bot,
+                        event=self.event,
+                        matcher=self.matcher,
+                    )
+                ).call(**function_args)
+            else:
+                logger.error(f"未找到函数 {tool_call.function.name.replace('-', '.')}")
+                func_return = f"未找到函数 {tool_call.function.name.replace('-', '.')}"
+            tool_msg.append(
+                ToolMessage(tool_call_id=tool_call.id, content=func_return).as_dict()  # type: ignore
+            )
+            #  tool_msg[0]["tool_calls"][0]["type"] = "builtin_function"
+            # await UniMessage(str(tool_msg)).send()
+        return await self.handle_common_chat(
+            user_message=user_message,
+            model_name=model_name,
+            tools_list=tools_list,
+            tool_message=tool_msg,
+        )
+
+    async def handle_common_chat(
+        self,
+        user_message: Union[str, list],
+        model_name: str,
+        tools_list: list,
+        stream: bool = False,
+        tool_message: Optional[list] = None,
+    ) -> Union[Tuple[UserMessage, ChatCompletionMessage], None]:
+        """
+        处理一般聊天
+        """
+        global target_list
+        if stream:
+            raise NotImplementedError
+        response = await self.handle_single_chat(
+            user_message=user_message,
+            model_name=model_name,
+            tools_list=tools_list,
+            tool_message=tool_message,
+        )
+        choice = response.choices[0]
+        # Sprint(choice)
+        # 当tool_calls非空时，将finish_reason设置为TOOL_CALLS
+        if choice.message.tool_calls is not None and config.marshoai_fix_toolcalls:
+            choice.finish_reason = "tool_calls"
+        logger.info(f"完成原因：{choice.finish_reason}")
+        if choice.finish_reason == CompletionsFinishReason.STOPPED:
+
+            ##### DeepSeek-R1 兼容部分 #####
+            choice_msg_content, choice_msg_thinking, choice_msg_after = (
+                extract_content_and_think(choice.message)
+            )
+            if choice_msg_thinking and config.marshoai_send_thinking:
+                await UniMessage("思维链：\n" + choice_msg_thinking).send()
+            ##### 兼容部分结束 #####
+
+            if [self.target.id, self.target.private] not in target_list:
+                target_list.append([self.target.id, self.target.private])
+
+            # 对话成功发送消息
+            if config.marshoai_enable_richtext_parse:
+                await (await parse_richtext(str(choice_msg_content))).send(
+                    reply_to=True
+                )
+            else:
+                await UniMessage(str(choice_msg_content)).send(reply_to=True)
+            return UserMessage(content=user_message), choice_msg_after
+        elif choice.finish_reason == CompletionsFinishReason.CONTENT_FILTERED:
+
+            # 对话失败，消息过滤
+
+            await UniMessage("*已被内容过滤器过滤。请调整聊天内容后重试。").send(
+                reply_to=True
+            )
+            return None
+        elif choice.finish_reason == CompletionsFinishReason.TOOL_CALLS:
+            return await self.handle_function_call(
+                response, user_message, model_name, tools_list
+            )
+        else:
+            await UniMessage(f"意外的完成原因:{choice.finish_reason}").send()
+            return None
diff --git a/nonebot_plugin_marshoai/hooks.py b/nonebot_plugin_marshoai/hooks.py
index 8b6ddd0e..6e6f439e 100644
--- a/nonebot_plugin_marshoai/hooks.py
+++ b/nonebot_plugin_marshoai/hooks.py
@@ -6,7 +6,7 @@ import nonebot_plugin_localstore as store
 from nonebot import logger
 
 from .config import config
-from .instances import *
+from .instances import context, driver, target_list, tools
 from .plugin import load_plugin, load_plugins
 from .util import get_backup_context, save_context_to_json
 
diff --git a/nonebot_plugin_marshoai/instances.py b/nonebot_plugin_marshoai/instances.py
index d450d2d2..d5aaf709 100644
--- a/nonebot_plugin_marshoai/instances.py
+++ b/nonebot_plugin_marshoai/instances.py
@@ -3,7 +3,7 @@ from nonebot import get_driver
 from openai import AsyncOpenAI
 
 from .config import config
-from .models import Cache, MarshoContext, MarshoTools
+from .models import MarshoContext, MarshoTools
 
 driver = get_driver()
 
@@ -11,7 +11,6 @@ command_start = driver.config.command_start
 model_name = config.marshoai_default_model
 context = MarshoContext()
 tools = MarshoTools()
-cache = Cache()
 token = config.marshoai_token
 endpoint = config.marshoai_azure_endpoint
 # client = ChatCompletionsClient(endpoint=endpoint, credential=AzureKeyCredential(token))
diff --git a/nonebot_plugin_marshoai/marsho.py b/nonebot_plugin_marshoai/marsho.py
index ce20fba6..a922cc80 100644
--- a/nonebot_plugin_marshoai/marsho.py
+++ b/nonebot_plugin_marshoai/marsho.py
@@ -1,5 +1,4 @@
 import contextlib
-import json
 import traceback
 from typing import Optional
 
@@ -7,10 +6,6 @@ from arclet.alconna import Alconna, AllParam, Args
 from azure.ai.inference.models import (
     AssistantMessage,
     CompletionsFinishReason,
-    ImageContentItem,
-    ImageUrl,
-    TextContentItem,
-    ToolMessage,
     UserMessage,
 )
 from nonebot import logger, on_command, on_message
@@ -24,11 +19,11 @@ from nonebot_plugin_alconna import MsgTarget, UniMessage, UniMsg, on_alconna
 
 from .config import config
 from .constants import INTRODUCTION, SUPPORT_IMAGE_MODELS
+from .handler import MarshoHandler
 from .hooks import *
 from .instances import client, context, model_name, target_list, tools
 from .metadata import metadata
 from .plugin.func_call.caller import get_function_calls
-from .plugin.func_call.models import SessionContext
 from .util import *
 
 
@@ -232,16 +227,16 @@ async def marsho(
         # 发送说明
         # await UniMessage(metadata.usage + "\n当前使用的模型：" + model_name).send()
         await marsho_cmd.finish(INTRODUCTION)
+        backup_context = await get_backup_context(target.id, target.private)
+        if backup_context:
+            context.set_context(
+                backup_context, target.id, target.private
+            )  # 加载历史记录
+            logger.info(f"已恢复会话 {target.id} 的上下文备份~")
+    handler = MarshoHandler(client, context)
     try:
-        user_id = event.get_user_id()
-        nicknames = await get_nicknames()
-        user_nickname = nicknames.get(user_id, "")
-        if user_nickname != "":
-            nickname_prompt = (
-                f"\n*此消息的说话者id为:{user_id}，名字为:{user_nickname}*"
-            )
-        else:
-            nickname_prompt = ""
+        user_nickname = await get_nickname_by_user_id(event.get_user_id())
+        if not user_nickname:
             # 用户名无法获取，暂时注释
             # user_nickname = event.sender.nickname  # 未设置昵称时获取用户名
             # nickname_prompt = f"\n*此消息的说话者:{user_nickname}"
@@ -255,188 +250,21 @@ async def marsho(
                     "※你未设置自己的昵称。推荐使用「nickname [昵称]」命令设置昵称来获得个性化(可能）回答。"
                 ).send()
 
-        is_support_image_model = (
-            model_name.lower()
-            in SUPPORT_IMAGE_MODELS + config.marshoai_additional_image_models
-        )
-        usermsg = [] if is_support_image_model else ""
-        for i in text:  # type: ignore
-            if i.type == "text":
-                if is_support_image_model:
-                    usermsg += [TextContentItem(text=i.data["text"] + nickname_prompt).as_dict()]  # type: ignore
-                else:
-                    usermsg += str(i.data["text"] + nickname_prompt)  # type: ignore
-            elif i.type == "image":
-                if is_support_image_model:
-                    usermsg.append(  # type: ignore
-                        ImageContentItem(
-                            image_url=ImageUrl(  # type: ignore
-                                url=str(await get_image_b64(i.data["url"]))  # type: ignore
-                            )  # type: ignore
-                        ).as_dict()  # type: ignore
-                    )  # type: ignore
-                    logger.info(f"输入图片 {i.data['url']}")
-                elif config.marshoai_enable_support_image_tip:
-                    await UniMessage(
-                        "*此模型不支持图片处理或管理员未启用此模型的图片支持。图片将被忽略。"
-                    ).send()
-        backup_context = await get_backup_context(target.id, target.private)
-        if backup_context:
-            context.set_context(
-                backup_context, target.id, target.private
-            )  # 加载历史记录
-            logger.info(f"已恢复会话 {target.id} 的上下文备份~")
-        context_msg = get_prompt(model_name) + context.build(target.id, target.private)
+        usermsg = await handler.process_user_input(text, model_name)
 
         tools_lists = tools.tools_list + list(
             map(lambda v: v.data(), get_function_calls().values())
         )
         logger.info(f"正在获取回答，模型：{model_name}")
         # logger.info(f"上下文：{context_msg}")
-        response = await make_chat_openai(
-            client=client,
-            model_name=model_name,
-            msg=context_msg + [UserMessage(content=usermsg).as_dict()],  # type: ignore
-            tools=tools_lists if tools_lists else None,  # TODO 临时追加函数，后期优化
-        )
+        response = await handler.handle_common_chat(usermsg, model_name, tools_lists)
         # await UniMessage(str(response)).send()
-        choice = response.choices[0]
-        # Sprint(choice)
-        # 当tool_calls非空时，将finish_reason设置为TOOL_CALLS
-        if choice.message.tool_calls is not None and config.marshoai_fix_toolcalls:
-            choice.finish_reason = "tool_calls"
-        logger.info(f"完成原因：{choice.finish_reason}")
-        if choice.finish_reason == CompletionsFinishReason.STOPPED:
-            # 当对话成功时，将dict的上下文添加到上下文类中
-            context.append(
-                UserMessage(content=usermsg).as_dict(), target.id, target.private  # type: ignore
-            )
-
-            ##### DeepSeek-R1 兼容部分 #####
-            choice_msg_content, choice_msg_thinking, choice_msg_after = (
-                extract_content_and_think(choice.message)
-            )
-            if choice_msg_thinking and config.marshoai_send_thinking:
-                await UniMessage("思维链：\n" + choice_msg_thinking).send()
-            ##### 兼容部分结束 #####
-
-            context.append(choice_msg_after.to_dict(), target.id, target.private)
-            if [target.id, target.private] not in target_list:
-                target_list.append([target.id, target.private])
-
-            # 对话成功发送消息
-            if config.marshoai_enable_richtext_parse:
-                await (await parse_richtext(str(choice_msg_content))).send(
-                    reply_to=True
-                )
-            else:
-                await UniMessage(str(choice_msg_content)).send(reply_to=True)
-        elif choice.finish_reason == CompletionsFinishReason.CONTENT_FILTERED:
-
-            # 对话失败，消息过滤
-
-            await UniMessage("*已被内容过滤器过滤。请调整聊天内容后重试。").send(
-                reply_to=True
-            )
-            return
-        elif choice.finish_reason == CompletionsFinishReason.TOOL_CALLS:
-            # function call
-            # 需要获取额外信息，调用函数工具
-            tool_msg = []
-            while choice.message.tool_calls is not None:
-                # await UniMessage(str(response)).send()
-                tool_calls = choice.message.tool_calls
-                # try:
-                #     if tool_calls[0]["function"]["name"].startswith("$"):
-                #         choice.message.tool_calls[0][
-                #             "type"
-                #         ] = "builtin_function"  # 兼容 moonshot AI 内置函数的临时方案
-                # except:
-                #     pass
-                tool_msg.append(choice.message)
-                for tool_call in tool_calls:
-                    try:
-                        function_args = json.loads(tool_call.function.arguments)
-                    except json.JSONDecodeError:
-                        function_args = json.loads(
-                            tool_call.function.arguments.replace("'", '"')
-                        )
-                    # 删除args的placeholder参数
-                    if "placeholder" in function_args:
-                        del function_args["placeholder"]
-                    logger.info(
-                        f"调用函数 {tool_call.function.name.replace('-', '.')}\n参数:"
-                        + "\n".join([f"{k}={v}" for k, v in function_args.items()])
-                    )
-                    await UniMessage(
-                        f"调用函数 {tool_call.function.name.replace('-', '.')}\n参数:"
-                        + "\n".join([f"{k}={v}" for k, v in function_args.items()])
-                    ).send()
-                    # TODO 临时追加插件函数，若工具中没有则调用插件函数
-                    if tools.has_function(tool_call.function.name):
-                        logger.debug(f"调用工具函数 {tool_call.function.name}")
-                        func_return = await tools.call(
-                            tool_call.function.name, function_args
-                        )  # 获取返回值
-                    else:
-                        if caller := get_function_calls().get(tool_call.function.name):
-                            logger.debug(f"调用插件函数 {caller.full_name}")
-                            # 权限检查，规则检查 TODO
-                            # 实现依赖注入，检查函数参数及参数注解类型，对Event类型的参数进行注入
-                            func_return = await caller.with_ctx(
-                                SessionContext(
-                                    bot=bot,
-                                    event=event,
-                                    state=state,
-                                    matcher=matcher,
-                                )
-                            ).call(**function_args)
-                        else:
-                            logger.error(
-                                f"未找到函数 {tool_call.function.name.replace('-', '.')}"
-                            )
-                            func_return = f"未找到函数 {tool_call.function.name.replace('-', '.')}"
-                    tool_msg.append(
-                        ToolMessage(tool_call_id=tool_call.id, content=func_return).as_dict()  # type: ignore
-                    )
-                    #  tool_msg[0]["tool_calls"][0]["type"] = "builtin_function"
-                    # await UniMessage(str(tool_msg)).send()
-                request_msg = context_msg + [UserMessage(content=usermsg).as_dict()] + tool_msg  # type: ignore
-                response = await make_chat_openai(
-                    client=client,
-                    model_name=model_name,
-                    msg=request_msg,  # type: ignore
-                    tools=(
-                        tools_lists if tools_lists else None
-                    ),  # TODO 临时追加函数，后期优化
-                )
-                choice = response.choices[0]
-                # 当tool_calls非空时，将finish_reason设置为TOOL_CALLS
-                if choice.message.tool_calls is not None:
-                    choice.finish_reason = CompletionsFinishReason.TOOL_CALLS
-            if choice.finish_reason == CompletionsFinishReason.STOPPED:
-
-                # 对话成功 添加上下文
-                context.append(
-                    UserMessage(content=usermsg).as_dict(), target.id, target.private  # type: ignore
-                )
-                # context.append(tool_msg, target.id, target.private)
-                choice_msg_dict = choice.message.to_dict()
-                if "reasoning_content" in choice_msg_dict:
-                    del choice_msg_dict["reasoning_content"]
-                context.append(choice_msg_dict, target.id, target.private)
-
-                # 发送消息
-                if config.marshoai_enable_richtext_parse:
-                    await (await parse_richtext(str(choice.message.content))).send(
-                        reply_to=True
-                    )
-                else:
-                    await UniMessage(str(choice.message.content)).send(reply_to=True)
-            else:
-                await marsho_cmd.finish(f"意外的完成原因:{choice.finish_reason}")
+        if response is not None:
+            context_user, context_assistant = response
+            context.append(context_user.as_dict(), target.id, target.private)
+            context.append(context_assistant.to_dict(), target.id, target.private)
         else:
-            await marsho_cmd.finish(f"意外的完成原因:{choice.finish_reason}")
+            await UniMessage("没有回答").send()
     except Exception as e:
         await UniMessage(str(e) + suggest_solution(str(e))).send()
         traceback.print_exc()
@@ -451,12 +279,10 @@ with contextlib.suppress(ImportError):  # 优化先不做（）
     @poke_notify.handle()
     async def poke(event: Event):
 
-        user_id = event.get_user_id()
-        nicknames = await get_nicknames()
-        user_nickname = nicknames.get(user_id, "")
+        user_nickname = await get_nickname_by_user_id(event.get_user_id())
         try:
             if config.marshoai_poke_suffix != "":
-                logger.info(f"收到戳一戳，用户昵称：{user_nickname}，用户ID：{user_id}")
+                logger.info(f"收到戳一戳，用户昵称：{user_nickname}")
                 response = await make_chat_openai(
                     client=client,
                     model_name=model_name,
diff --git a/nonebot_plugin_marshoai/plugin/func_call/caller.py b/nonebot_plugin_marshoai/plugin/func_call/caller.py
index cf634e3a..04ab747c 100644
--- a/nonebot_plugin_marshoai/plugin/func_call/caller.py
+++ b/nonebot_plugin_marshoai/plugin/func_call/caller.py
@@ -70,11 +70,9 @@ class Caller:
         ):
             return False, "告诉用户 Permission Denied 权限不足"
 
-        if self.ctx.state is None:
-            return False, "State is None"
-        if self._rule and not await self._rule(
-            self.ctx.bot, self.ctx.event, self.ctx.state
-        ):
+        # if self.ctx.state is None:
+        #     return False, "State is None"
+        if self._rule and not await self._rule(self.ctx.bot, self.ctx.event):
             return False, "告诉用户 Rule Denied 规则不匹配"
 
         return True, ""
@@ -115,6 +113,10 @@ class Caller:
         # 检查函数签名，确定依赖注入参数
         sig = inspect.signature(func)
         for name, param in sig.parameters.items():
+            if param.annotation == T_State:
+                self.di.state = name
+                continue  # 防止后续判断T_State子类时报错
+
             if issubclass(param.annotation, Event) or isinstance(
                 param.annotation, Event
             ):
@@ -133,9 +135,6 @@ class Caller:
             ):
                 self.di.matcher = name
 
-            if param.annotation == T_State:
-                self.di.state = name
-
         # 检查默认值情况
         for name, param in sig.parameters.items():
             if param.default is not inspect.Parameter.empty:
diff --git a/nonebot_plugin_marshoai/plugin/func_call/models.py b/nonebot_plugin_marshoai/plugin/func_call/models.py
index 379388e7..3eeefe05 100644
--- a/nonebot_plugin_marshoai/plugin/func_call/models.py
+++ b/nonebot_plugin_marshoai/plugin/func_call/models.py
@@ -19,7 +19,7 @@ class SessionContext(BaseModel):
     bot: Bot
     event: Event
     matcher: Matcher
-    state: T_State
+    # state: T_State
     caller: Any = None
 
     class Config:
@@ -30,5 +30,5 @@ class SessionContextDepends(BaseModel):
     bot: str | None = None
     event: str | None = None
     matcher: str | None = None
-    state: str | None = None
+    # state: str | None = None
     caller: str | None = None
diff --git a/nonebot_plugin_marshoai/util.py b/nonebot_plugin_marshoai/util.py
index 0fbd6ec0..1a35320f 100755
--- a/nonebot_plugin_marshoai/util.py
+++ b/nonebot_plugin_marshoai/util.py
@@ -20,13 +20,13 @@ from openai.types.chat import ChatCompletion, ChatCompletionMessage
 from zhDateTime import DateTime
 
 from ._types import DeveloperMessage
+from .cache.decos import *
 from .config import config
 from .constants import CODE_BLOCK_PATTERN, IMG_LATEX_PATTERN, OPENAI_NEW_MODELS
 from .deal_latex import ConvertLatex
-from .instances import cache
 
-nickname_json = None  # 记录昵称
-praises_json = None  # 记录夸赞名单
+# nickname_json = None  # 记录昵称
+# praises_json = None  # 记录夸赞名单
 loaded_target_list: List[str] = []  # 记录已恢复备份的上下文的列表
 
 NOT_GIVEN = NotGiven()
@@ -156,30 +156,29 @@ async def make_chat_openai(
     )
 
 
+@from_cache("praises")
 def get_praises():
-    global praises_json
-    if praises_json is None:
-        praises_file = store.get_plugin_data_file(
-            "praises.json"
-        )  # 夸赞名单文件使用localstore存储
-        if not praises_file.exists():
-            with open(praises_file, "w", encoding="utf-8") as f:
-                json.dump(_praises_init_data, f, ensure_ascii=False, indent=4)
-        with open(praises_file, "r", encoding="utf-8") as f:
-            data = json.load(f)
-        praises_json = data
+    praises_file = store.get_plugin_data_file(
+        "praises.json"
+    )  # 夸赞名单文件使用localstore存储
+    if not praises_file.exists():
+        with open(praises_file, "w", encoding="utf-8") as f:
+            json.dump(_praises_init_data, f, ensure_ascii=False, indent=4)
+    with open(praises_file, "r", encoding="utf-8") as f:
+        data = json.load(f)
+    praises_json = data
     return praises_json
 
 
+@update_to_cache("praises")
 async def refresh_praises_json():
-    global praises_json
     praises_file = store.get_plugin_data_file("praises.json")
     if not praises_file.exists():
         with open(praises_file, "w", encoding="utf-8") as f:
             json.dump(_praises_init_data, f, ensure_ascii=False, indent=4)  # 异步？
     async with aiofiles.open(praises_file, "r", encoding="utf-8") as f:
         data = json.loads(await f.read())
-    praises_json = data
+    return data
 
 
 def build_praises() -> str:
@@ -211,22 +210,21 @@ async def load_context_from_json(name: str, path: str) -> list:
         return []
 
 
+@from_cache("nickname")
 async def get_nicknames():
-    """获取nickname_json, 优先来源于全局变量"""
-    global nickname_json
-    if nickname_json is None:
-        filename = store.get_plugin_data_file("nickname.json")
-        # noinspection PyBroadException
-        try:
-            async with aiofiles.open(filename, "r", encoding="utf-8") as f:
-                nickname_json = json.loads(await f.read())
-        except (json.JSONDecodeError, FileNotFoundError):
-            nickname_json = {}
+    """获取nickname_json, 优先来源于缓存"""
+    filename = store.get_plugin_data_file("nickname.json")
+    # noinspection PyBroadException
+    try:
+        async with aiofiles.open(filename, "r", encoding="utf-8") as f:
+            nickname_json = json.loads(await f.read())
+    except (json.JSONDecodeError, FileNotFoundError):
+        nickname_json = {}
     return nickname_json
 
 
+@update_to_cache("nickname")
 async def set_nickname(user_id: str, name: str):
-    global nickname_json
     filename = store.get_plugin_data_file("nickname.json")
     if not filename.exists():
         data = {}
@@ -238,18 +236,24 @@ async def set_nickname(user_id: str, name: str):
         del data[user_id]
     with open(filename, "w", encoding="utf-8") as f:
         json.dump(data, f, ensure_ascii=False, indent=4)
-    nickname_json = data
+    return data
 
 
+async def get_nickname_by_user_id(user_id: str):
+    nickname_json = await get_nicknames()
+    return nickname_json.get(user_id, "")
+
+
+@update_to_cache("nickname")
 async def refresh_nickname_json():
-    """强制刷新nickname_json, 刷新全局变量"""
-    global nickname_json
+    """强制刷新nickname_json"""
     # noinspection PyBroadException
     try:
         async with aiofiles.open(
             store.get_plugin_data_file("nickname.json"), "r", encoding="utf-8"
         ) as f:
             nickname_json = json.loads(await f.read())
+        return nickname_json
     except (json.JSONDecodeError, FileNotFoundError):
         logger.error("刷新 nickname_json 表错误：无法载入 nickname.json 文件")