diff --git a/pkg/core/app.py b/pkg/core/app.py
index c0ce12fa..c9d06e15 100644
--- a/pkg/core/app.py
+++ b/pkg/core/app.py
@@ -8,6 +8,7 @@ from ..openai import manager as openai_mgr
 from ..openai.session import sessionmgr as llm_session_mgr
 from ..openai.requester import modelmgr as llm_model_mgr
 from ..openai.sysprompt import sysprompt as llm_prompt_mgr
+from ..openai.tools import toolmgr as llm_tool_mgr
 from ..config import manager as config_mgr
 from ..database import manager as database_mgr
 from ..utils.center import v2 as center_mgr
@@ -27,6 +28,8 @@ class Application:
 
     prompt_mgr: llm_prompt_mgr.PromptManager = None
 
+    tool_mgr: llm_tool_mgr.ToolManager = None
+
     cfg_mgr: config_mgr.ConfigManager = None
 
     tips_mgr: config_mgr.ConfigManager = None
@@ -46,10 +49,21 @@ class Application:
     def __init__(self):
         pass
 
-    async def run(self):
-        # TODO make it async
+    async def initialize(self):
         plugin_host.initialize_plugins()
 
+        # 把现有的所有内容函数加到toolmgr里
+        for func in plugin_host.__callable_functions__:
+            print(func)
+            self.tool_mgr.register_legacy_function(
+                name=func['name'],
+                description=func['description'],
+                parameters=func['parameters'],
+                func=plugin_host.__function_inst_map__[func['name']]
+            )
+
+    async def run(self):
+
         tasks = [
             asyncio.create_task(self.im_mgr.run()),
             asyncio.create_task(self.ctrl.run())
diff --git a/pkg/core/boot.py b/pkg/core/boot.py
index a74615ec..c06cc6cd 100644
--- a/pkg/core/boot.py
+++ b/pkg/core/boot.py
@@ -18,6 +18,7 @@ from ..openai import manager as llm_mgr
 from ..openai.session import sessionmgr as llm_session_mgr
 from ..openai.requester import modelmgr as llm_model_mgr
 from ..openai.sysprompt import sysprompt as llm_prompt_mgr
+from ..openai.tools import toolmgr as llm_tool_mgr
 from ..openai import dprompt as llm_dprompt
 from ..qqbot import manager as im_mgr
 from ..qqbot.cmds import aamgr as im_cmd_aamgr
@@ -127,6 +128,10 @@ async def make_app() -> app.Application:
     await llm_prompt_mgr_inst.initialize()
     ap.prompt_mgr = llm_prompt_mgr_inst
 
+    llm_tool_mgr_inst = llm_tool_mgr.ToolManager(ap)
+    await llm_tool_mgr_inst.initialize()
+    ap.tool_mgr = llm_tool_mgr_inst
+
     im_mgr_inst = im_mgr.QQBotManager(first_time_init=True, ap=ap)
     await im_mgr_inst.initialize()
     ap.im_mgr = im_mgr_inst
@@ -140,7 +145,8 @@ async def make_app() -> app.Application:
 
     # TODO make it async
     plugin_host.load_plugins()
-    # plugin_host.initialize_plugins()
+    
+    await ap.initialize()
 
     return ap
 
diff --git a/pkg/openai/entities.py b/pkg/openai/entities.py
index 58f48d95..2dd5804b 100644
--- a/pkg/openai/entities.py
+++ b/pkg/openai/entities.py
@@ -5,27 +5,29 @@ import enum
 import pydantic
 
 
-class MessageRole(enum.Enum):
-
-    SYSTEM = 'system'
-
-    USER = 'user'
-
-    ASSISTANT = 'assistant'
-
-    FUNCTION = 'function'
-
-
 class FunctionCall(pydantic.BaseModel):
     name: str
 
-    args: dict[str, typing.Any]
+    arguments: str
+
+
+class ToolCall(pydantic.BaseModel):
+    id: str
+
+    type: str
+
+    function: FunctionCall
 
 
 class Message(pydantic.BaseModel):
+    role: str
 
-    role: MessageRole
+    name: typing.Optional[str] = None
 
     content: typing.Optional[str] = None
 
     function_call: typing.Optional[FunctionCall] = None
+
+    tool_calls: typing.Optional[list[ToolCall]] = None
+
+    tool_call_id: typing.Optional[str] = None
diff --git a/pkg/openai/requester/apis/chatcmpl.py b/pkg/openai/requester/apis/chatcmpl.py
index 5b6d2297..24ff2d7e 100644
--- a/pkg/openai/requester/apis/chatcmpl.py
+++ b/pkg/openai/requester/apis/chatcmpl.py
@@ -2,8 +2,10 @@ from __future__ import annotations
 
 import asyncio
 import typing
+import json
 
 import openai
+import openai.types.chat.chat_completion as chat_completion
 
 from .. import api
 from ....core import entities as core_entities
@@ -12,21 +14,127 @@ from ...session import entities as session_entities
 
 
 class OpenAIChatCompletion(api.LLMAPIRequester):
-
-    client: openai.Client
+    client: openai.AsyncClient
 
     async def initialize(self):
-        self.client = openai.Client(
-            base_url=self.ap.cfg_mgr.data['openai_config']['reverse_proxy'],
-            timeout=self.ap.cfg_mgr.data['process_message_timeout']
+        self.client = openai.AsyncClient(
+            api_key="",
+            base_url=self.ap.cfg_mgr.data["openai_config"]["reverse_proxy"],
+            timeout=self.ap.cfg_mgr.data["process_message_timeout"],
         )
 
-    async def request(self, query: core_entities.Query, conversation: session_entities.Conversation) -> typing.AsyncGenerator[llm_entities.Message, None]:
-        """请求
-        """
-        await asyncio.sleep(10)
+    async def _req(
+        self,
+        args: dict,
+    ) -> chat_completion.ChatCompletion:
+        self.ap.logger.debug(f"req chat_completion with args {args}")
+        return await self.client.chat.completions.create(**args)
 
-        yield llm_entities.Message(
-            role=llm_entities.MessageRole.ASSISTANT,
-            content="hello"
-        )
+    async def _make_msg(
+        self,
+        chat_completion: chat_completion.ChatCompletion,
+    ) -> llm_entities.Message:
+        chatcmpl_message = chat_completion.choices[0].message.dict()
+
+        message = llm_entities.Message(**chatcmpl_message)
+
+        return message
+
+    async def _closure(
+        self,
+        req_messages: list[dict],
+        conversation: session_entities.Conversation,
+        user_text: str = None,
+        function_ret: str = None,
+    ) -> llm_entities.Message:
+        self.client.api_key = conversation.use_model.token_mgr.get_token()
+
+        args = self.ap.cfg_mgr.data["completion_api_params"].copy()
+        args["model"] = conversation.use_model.name
+
+        tools = await self.ap.tool_mgr.generate_tools_for_openai(conversation)
+        # tools = [
+        #     {
+        #         "type": "function",
+        #         "function": {
+        #             "name": "get_current_weather",
+        #             "description": "Get the current weather in a given location",
+        #             "parameters": {
+        #                 "type": "object",
+        #                 "properties": {
+        #                     "location": {
+        #                         "type": "string",
+        #                         "description": "The city and state, e.g. San Francisco, CA",
+        #                     },
+        #                     "unit": {
+        #                         "type": "string",
+        #                         "enum": ["celsius", "fahrenheit"],
+        #                     },
+        #                 },
+        #                 "required": ["location"],
+        #             },
+        #         },
+        #     }
+        # ]
+        if tools:
+            args["tools"] = tools
+
+        # 设置此次请求中的messages
+        messages = req_messages
+        args["messages"] = messages
+
+        # 发送请求
+        resp = await self._req(args)
+
+        # 处理请求结果
+        message = await self._make_msg(resp)
+
+        return message
+
+    async def request(
+        self, query: core_entities.Query, conversation: session_entities.Conversation
+    ) -> typing.AsyncGenerator[llm_entities.Message, None]:
+        """请求"""
+
+        pending_tool_calls = []
+
+        req_messages = [
+            m.dict(exclude_none=True) for m in conversation.prompt.messages
+        ] + [m.dict(exclude_none=True) for m in conversation.messages]
+
+        req_messages.append({"role": "user", "content": str(query.message_chain)})
+
+        msg = await self._closure(req_messages, conversation)
+
+        yield msg
+
+        pending_tool_calls = msg.tool_calls
+
+        req_messages.append(msg.dict(exclude_none=True))
+
+        while pending_tool_calls:
+            for tool_call in pending_tool_calls:
+                func = tool_call.function
+
+                parameters = json.loads(func.arguments)
+
+                func_ret = await self.ap.tool_mgr.execute_func_call(
+                    query, func.name, parameters
+                )
+
+                msg = llm_entities.Message(
+                    role="tool", content=json.dumps(func_ret, ensure_ascii=False), tool_call_id=tool_call.id
+                )
+
+                yield msg
+
+                req_messages.append(msg.dict(exclude_none=True))
+
+            # 处理完所有调用，继续请求
+            msg = await self._closure(req_messages, conversation)
+
+            yield msg
+
+            pending_tool_calls = msg.tool_calls
+
+            req_messages.append(msg.dict(exclude_none=True))
diff --git a/pkg/openai/requester/modelmgr.py b/pkg/openai/requester/modelmgr.py
index cc606b03..7e6a3b52 100644
--- a/pkg/openai/requester/modelmgr.py
+++ b/pkg/openai/requester/modelmgr.py
@@ -19,7 +19,8 @@ class ModelManager:
 
     async def initialize(self):
         openai_chat_completion = chatcmpl.OpenAIChatCompletion(self.ap)
-        openai_token_mgr = token.TokenManager(self.ap, self.ap.cfg_mgr.data['openai_config']['api_key'].values())
+        await openai_chat_completion.initialize()
+        openai_token_mgr = token.TokenManager(self.ap, list(self.ap.cfg_mgr.data['openai_config']['api_key'].values()))
 
         self.model_list.append(
             entities.LLMModelInfo(
diff --git a/pkg/openai/session/entities.py b/pkg/openai/session/entities.py
index 49ddb845..cbeb72a3 100644
--- a/pkg/openai/session/entities.py
+++ b/pkg/openai/session/entities.py
@@ -10,6 +10,7 @@ from ..sysprompt import entities as sysprompt_entities
 from .. import entities as llm_entities
 from ..requester import entities
 from ...core import entities as core_entities
+from ..tools import entities as tools_entities
 
 
 class Conversation(pydantic.BaseModel):
@@ -25,6 +26,8 @@ class Conversation(pydantic.BaseModel):
 
     use_model: entities.LLMModelInfo
 
+    use_funcs: typing.Optional[list[tools_entities.LLMFunction]]
+
 
 class Session(pydantic.BaseModel):
     """会话"""
diff --git a/pkg/openai/session/sessionmgr.py b/pkg/openai/session/sessionmgr.py
index 8aff6e02..a1d5d4d9 100644
--- a/pkg/openai/session/sessionmgr.py
+++ b/pkg/openai/session/sessionmgr.py
@@ -29,7 +29,7 @@ class SessionManager:
         session = entities.Session(
             launcher_type=query.launcher_type,
             launcher_id=query.launcher_id,
-            semaphore=asyncio.Semaphore(1) if self.ap.cfg_mgr.data['wait_last_done'] else asyncio.Semaphore(10000)
+            semaphore=asyncio.Semaphore(1) if self.ap.cfg_mgr.data['wait_last_done'] else asyncio.Semaphore(10000),
         )
         self.session_list.append(session)
         return session
@@ -43,6 +43,7 @@ class SessionManager:
                 prompt=await self.ap.prompt_mgr.get_prompt(session.use_prompt_name),
                 messages=[],
                 use_model=await self.ap.model_mgr.get_model_by_name(self.ap.cfg_mgr.data['completion_api_params']['model']),
+                use_funcs=await self.ap.tool_mgr.get_all_functions(),
             )
             session.conversations.append(conversation)
             session.using_conversation = conversation
diff --git a/pkg/openai/sysprompt/loaders/scenario.py b/pkg/openai/sysprompt/loaders/scenario.py
index e0c2bd33..4d54f30f 100644
--- a/pkg/openai/sysprompt/loaders/scenario.py
+++ b/pkg/openai/sysprompt/loaders/scenario.py
@@ -21,14 +21,9 @@ class ScenarioPromptLoader(loader.PromptLoader):
                 file_json = json.loads(file_str)
                 messages = []
                 for msg in file_json["prompt"]:
-                    role = llm_entities.MessageRole.SYSTEM
+                    role = 'system'
                     if "role" in msg:
-                        if msg["role"] == "user":
-                            role = llm_entities.MessageRole.USER
-                        elif msg["role"] == "system":
-                            role = llm_entities.MessageRole.SYSTEM
-                        elif msg["role"] == "function":
-                            role = llm_entities.MessageRole.FUNCTION
+                        role = msg['role']
                     messages.append(
                         llm_entities.Message(
                             role=role,
diff --git a/pkg/openai/sysprompt/loaders/single.py b/pkg/openai/sysprompt/loaders/single.py
index ad37d878..1fff5a69 100644
--- a/pkg/openai/sysprompt/loaders/single.py
+++ b/pkg/openai/sysprompt/loaders/single.py
@@ -19,7 +19,7 @@ class SingleSystemPromptLoader(loader.PromptLoader):
                 name=name,
                 messages=[
                     llm_entities.Message(
-                        role=llm_entities.MessageRole.SYSTEM,
+                        role='system',
                         content=cnt
                     )
                 ]
@@ -34,7 +34,7 @@ class SingleSystemPromptLoader(loader.PromptLoader):
                     name=file_name,
                     messages=[
                         llm_entities.Message(
-                            role=llm_entities.MessageRole.SYSTEM,
+                            role='system',
                             content=file_str
                         )
                     ]
diff --git a/pkg/openai/tools/__init__.py b/pkg/openai/tools/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/pkg/openai/tools/entities.py b/pkg/openai/tools/entities.py
new file mode 100644
index 00000000..b79627e5
--- /dev/null
+++ b/pkg/openai/tools/entities.py
@@ -0,0 +1,35 @@
+from __future__ import annotations
+
+import abc
+import typing
+import asyncio
+
+import pydantic
+
+
+class LLMFunction(pydantic.BaseModel):
+    """函数"""
+
+    name: str
+    """函数名"""
+
+    human_desc: str
+
+    description: str
+    """给LLM识别的函数描述"""
+
+    enable: typing.Optional[bool] = True
+
+    parameters: dict
+
+    func: typing.Callable
+    """供调用的python异步方法
+    
+    此异步方法第一个参数接收当前请求的query对象，可以从其中取出session等信息。
+    query参数不在parameters中，但在调用时会自动传入。
+    但在当前版本中，插件提供的内容函数都是同步的，且均为请求无关的，故在此版本的实现（以及考虑了向后兼容性的版本）中，
+    对插件的内容函数进行封装并存到这里来。
+    """
+
+    class Config:
+        arbitrary_types_allowed = True
diff --git a/pkg/openai/tools/toolmgr.py b/pkg/openai/tools/toolmgr.py
new file mode 100644
index 00000000..cc160e39
--- /dev/null
+++ b/pkg/openai/tools/toolmgr.py
@@ -0,0 +1,99 @@
+from __future__ import annotations
+
+import typing
+
+from ...core import app, entities as core_entities
+from . import entities
+from ..session import entities as session_entities
+
+
+class ToolManager:
+    """LLM工具管理器
+    """
+
+    ap: app.Application
+
+    all_functions: list[entities.LLMFunction]
+    
+    def __init__(self, ap: app.Application):
+        self.ap = ap
+        self.all_functions = []
+
+    async def initialize(self):
+        pass
+
+    def register_legacy_function(self, name: str, description: str, parameters: dict, func: callable):
+        """注册函数
+        """
+        async def wrapper(query, **kwargs):
+            return func(**kwargs)
+        function = entities.LLMFunction(
+            name=name,
+            description=description,
+            human_desc='',
+            enable=True,
+            parameters=parameters,
+            func=wrapper
+        )
+        self.all_functions.append(function)
+
+    async def register_function(self, function: entities.LLMFunction):
+        """添加函数
+        """
+        self.all_functions.append(function)
+
+    async def get_function(self, name: str) -> entities.LLMFunction:
+        """获取函数
+        """
+        for function in self.all_functions:
+            if function.name == name:
+                return function
+        return None
+    
+    async def get_all_functions(self) -> list[entities.LLMFunction]:
+        """获取所有函数
+        """
+        return self.all_functions
+    
+    async def generate_tools_for_openai(self, conversation: session_entities.Conversation) -> str:
+        """生成函数列表
+        """
+        tools = []
+
+        for function in conversation.use_funcs:
+            if function.enable:
+                function_schema = {
+                    "type": "function",
+                    "function": {
+                        "name": function.name,
+                        "description": function.description,
+                        "parameters": function.parameters
+                    }
+                }
+                tools.append(function_schema)
+
+        return tools
+
+    async def execute_func_call(
+        self,
+        query: core_entities.Query,
+        name: str,
+        parameters: dict
+    ) -> typing.Any:
+        """执行函数调用
+        """
+
+        # return "i'm not sure for the args "+str(parameters)
+
+        function = await self.get_function(name)
+        if function is None:
+            return None
+        
+        parameters = parameters.copy()
+
+        parameters = {
+            "query": query,
+            **parameters
+        }
+        
+        return await function.func(**parameters)
diff --git a/pkg/pipeline/longtext/longtext.py b/pkg/pipeline/longtext/longtext.py
index 11144891..72c36cdf 100644
--- a/pkg/pipeline/longtext/longtext.py
+++ b/pkg/pipeline/longtext/longtext.py
@@ -50,8 +50,8 @@ class LongTextProcessStage(stage.PipelineStage):
     
     async def process(self, query: core_entities.Query, stage_inst_name: str) -> entities.StageProcessResult:
         if len(str(query.resp_message_chain)) > self.ap.cfg_mgr.data['blob_message_threshold']:
-            query.message_chain = MessageChain(await self.strategy_impl.process(str(query.resp_message_chain)))
+            query.resp_message_chain = MessageChain(await self.strategy_impl.process(str(query.resp_message_chain)))
         return entities.StageProcessResult(
             result_type=entities.ResultType.CONTINUE,
             new_query=query
-        )
\ No newline at end of file
+        )
diff --git a/pkg/pipeline/process/handlers/chat.py b/pkg/pipeline/process/handlers/chat.py
index ebe958bf..629c2b11 100644
--- a/pkg/pipeline/process/handlers/chat.py
+++ b/pkg/pipeline/process/handlers/chat.py
@@ -26,13 +26,11 @@ class ChatMessageHandler(handler.MessageHandler):
         conversation = await self.ap.sess_mgr.get_conversation(session)
 
         async for result in conversation.use_model.requester.request(query, conversation):
+            conversation.messages.append(result)
+
             query.resp_message_chain = mirai.MessageChain([mirai.Plain(str(result))])
 
             yield entities.StageProcessResult(
                 result_type=entities.ResultType.CONTINUE,
                 new_query=query
             )
-
-                
-
-