diff --git a/nonebot_plugin_marshoai/plugin/__init__.py b/nonebot_plugin_marshoai/plugin/__init__.py
index 315134e9..3304092f 100755
--- a/nonebot_plugin_marshoai/plugin/__init__.py
+++ b/nonebot_plugin_marshoai/plugin/__init__.py
@@ -1,7 +1,7 @@
 """该功能目前正在开发中，暂时不可用，受影响的文件夹 `plugin`, `plugins`
 """
 
+from .func_call import *
 from .load import *
 from .models import *
-from .register import *
 from .utils import *
diff --git a/nonebot_plugin_marshoai/plugin/func_call/__init__.py b/nonebot_plugin_marshoai/plugin/func_call/__init__.py
new file mode 100644
index 00000000..6a79b24a
--- /dev/null
+++ b/nonebot_plugin_marshoai/plugin/func_call/__init__.py
@@ -0,0 +1,3 @@
+from .caller import *
+from .params import *
+from .register import *
diff --git a/nonebot_plugin_marshoai/plugin/func_call/caller.py b/nonebot_plugin_marshoai/plugin/func_call/caller.py
new file mode 100644
index 00000000..4ba01192
--- /dev/null
+++ b/nonebot_plugin_marshoai/plugin/func_call/caller.py
@@ -0,0 +1,76 @@
+from typing import Generic
+
+from ..typing import FUNCTION_CALL_FUNC
+from .params import P
+from .register import F
+
+
+class Caller(Generic[P]):
+    def __init__(self, name: str | None = None, description: str | None = None):
+        self._name = name
+        self._description = description
+        self._parameters: dict[str, P] = {}
+        self.func: FUNCTION_CALL_FUNC | None = None
+
+    def params(self, **kwargs: P) -> "Caller":
+        """设置多个函数参数
+        Args:
+            **kwargs: 参数字典
+        Returns:
+            Caller: Caller对象
+        """
+        self._parameters.update(kwargs)
+        return self
+
+    def param(self, name: str, param: P) -> "Caller":
+        """设置一个函数参数
+
+        Args:
+            name (str): 参数名
+            param (P): 参数对象
+
+        Returns:
+            Caller: Caller对象
+        """
+        self._parameters[name] = param
+        return self
+
+    def name(self, name: str) -> "Caller":
+        """设置函数名称
+
+        Args:
+            name (str): 函数名称
+
+        Returns:
+            Caller: Caller对象
+        """
+        self._name = name
+        return self
+
+    def description(self, description: str) -> "Caller":
+        """设置函数描述
+
+        Args:
+            description (str): 函数描述
+
+        Returns:
+            Caller: Caller对象
+        """
+        self._description = description
+        return self
+
+    def __call__(self, func: F) -> F:
+        self.func = func
+        return func
+
+
+def on_function_call(name: str | None = None, description: str | None = None) -> Caller:
+    """返回一个Caller类，可用于装饰一个函数，使其注册为一个可被AI调用的function call函数
+
+    Args:
+        description: 函数描述，若为None则从函数的docstring中获取
+
+    Returns:
+        Caller: Caller对象
+    """
+    return Caller(name=name, description=description)
diff --git a/nonebot_plugin_marshoai/plugin/func_call/params.py b/nonebot_plugin_marshoai/plugin/func_call/params.py
new file mode 100644
index 00000000..4c7c7614
--- /dev/null
+++ b/nonebot_plugin_marshoai/plugin/func_call/params.py
@@ -0,0 +1,125 @@
+from enum import Enum
+from typing import Any, TypeVar
+
+from pydantic import BaseModel, Field
+
+from ..typing import FUNCTION_CALL_FUNC
+
+P = TypeVar("P", bound="Parameter")
+"""参数类型泛型"""
+
+
+class ParamTypes:
+    STRING = "string"
+    INTEGER = "integer"
+    ARRAY = "array"
+    OBJECT = "object"
+    BOOLEAN = "boolean"
+    NUMBER = "number"
+
+
+class Parameter(BaseModel):
+    """
+    插件函数参数对象
+
+    Attributes:
+    ----------
+    name: str
+        参数名称
+    type: str
+        参数类型 string integer等
+    description: str
+        参数描述
+    """
+
+    type_: str
+    """参数类型描述 string integer等"""
+    description: str
+    """参数描述"""
+    default: Any = None
+    """默认值"""
+    properties: dict[str, Any] = {}
+    """参数定义属性，例如最大值最小值等"""
+    required: bool = False
+    """是否必须"""
+
+    def data(self) -> dict[str, Any]:
+        return {
+            "type": self.type_,
+            "description": self.description,
+            **{k: v for k, v in self.properties.items() if v is not None},
+        }
+
+
+class String(Parameter):
+    type_: str = ParamTypes.STRING
+    properties: dict[str, Any] = Field(default_factory=dict)
+    enum: list[str] | None = None
+
+
+class Integer(Parameter):
+    type_: str = ParamTypes.INTEGER
+    properties: dict[str, Any] = Field(
+        default_factory=lambda: {"minimum": 0, "maximum": 100}
+    )
+
+    minimum: int | None = None
+    maximum: int | None = None
+
+
+class Array(Parameter):
+    type_: str = ParamTypes.ARRAY
+    properties: dict[str, Any] = Field(
+        default_factory=lambda: {"items": {"type": "string"}}
+    )
+    items: str = Field("string", description="数组元素类型")
+
+
+class FunctionCall(BaseModel):
+    """
+    插件函数对象
+
+    Attributes:
+    ----------
+    name: str
+        函数名称
+    func: "FUNCTION_CALL"
+        函数对象
+    """
+
+    name: str
+    """函数名称 module.func"""
+    description: str
+    """函数描述 这个函数用于获取天气信息"""
+    arguments: dict[str, Parameter]
+    """函数参数信息"""
+    function: FUNCTION_CALL_FUNC
+    """函数对象"""
+    kwargs: dict[str, Any] = {}
+    """扩展参数"""
+
+    class Config:
+        arbitrary_types_allowed = True
+
+    def __hash__(self) -> int:
+        return hash(self.name)
+
+    def data(self) -> dict[str, Any]:
+        """生成函数描述信息
+
+        Returns:
+            dict[str, Any]: 函数描述信息 字典
+        """
+        return {
+            "type": "function",
+            "function": {
+                "name": self.name,
+                "description": self.description,
+                "parameters": {
+                    "type": "object",
+                    "properties": {k: v.data() for k, v in self.arguments.items()},
+                },
+                "required": [k for k, v in self.arguments.items() if v.default is None],
+                **self.kwargs,
+            },
+        }
diff --git a/nonebot_plugin_marshoai/plugin/func_call/register.py b/nonebot_plugin_marshoai/plugin/func_call/register.py
new file mode 100755
index 00000000..67594b98
--- /dev/null
+++ b/nonebot_plugin_marshoai/plugin/func_call/register.py
@@ -0,0 +1,126 @@
+"""此模块用于获取function call中函数定义信息以及注册函数
+"""
+
+from typing import TypeVar
+
+from nonebot import logger
+
+from ..docstring.parser import parse
+from ..typing import (
+    ASYNC_FUNCTION_CALL_FUNC,
+    FUNCTION_CALL_FUNC,
+    SYNC_FUNCTION_CALL_FUNC,
+)
+from .params import *
+
+F = TypeVar("F", bound=FUNCTION_CALL_FUNC)
+
+_loaded_functions: dict[str, FUNCTION_CALL_FUNC] = {}
+
+
+def async_wrapper(func: SYNC_FUNCTION_CALL_FUNC) -> ASYNC_FUNCTION_CALL_FUNC:
+    """将同步函数包装为异步函数，但是不会真正异步执行，仅用于统一调用及函数签名
+
+    Args:
+        func: 同步函数
+
+    Returns:
+        ASYNC_FUNCTION_CALL: 异步函数
+    """
+
+    async def wrapper(*args, **kwargs) -> str:
+        return func(*args, **kwargs)
+
+    return wrapper
+
+
+def function_call(func: F) -> F:
+    """返回一个装饰器，装饰一个函数, 使其注册为一个可被AI调用的function call函数
+
+    Args:
+        func: 函数对象，要有完整的 Google Style Docstring
+
+    Returns:
+        str: 函数定义信息
+    """
+    # TODO
+    # pre check docstring
+    if not func.__doc__:
+        logger.error(f"函数 {func.__name__} 没有文档字串，不被加载")
+        return func
+    else:
+        # 解析函数文档字串
+        result = parse(docstring=func.__doc__)
+        logger.debug(result.reduction())
+    return func
+
+
+def caller(
+    description: str | None = None,
+    parameters: dict[str, P] | None = None,
+):
+    """返回一个装饰器，装饰一个函数, 使其注册为一个可被AI调用的function call函数
+
+    Args:
+        description: 函数描述
+        parameters: 函数参数
+
+    Returns:
+        str: 函数定义信息
+    """
+
+    def decorator(func: FUNCTION_CALL_FUNC) -> FUNCTION_CALL_FUNC:
+        # TODO
+        # pre check docstring
+        if not func.__doc__:
+            logger.error(f"函数 {func.__name__} 没有文档字串，不被加载")
+            return func
+        else:
+            # 解析函数文档字串
+            result = parse(docstring=func.__doc__)
+            logger.debug(result.reduction())
+        return func
+
+    return decorator
+
+
+# TODO 草案
+# @caller(
+#     description="这个函数用来给你算命",
+#     parameters={
+#         "birthday": String(description="生日"),
+#         "gender": String(enum=["男", "女"], description="性别"),
+#         "name": String(description="姓名"),
+#     },
+# )
+# async def tell_fortune(birthday: str, name: str, gender: str) -> str:
+#     """这个函数用来给你算命
+
+#     Args:
+#         birthday: 生日
+#         name: 姓名
+
+#     Returns:
+#         str: 算命结果
+#     """
+#     return f"{name}，你的生日是{birthday}，你的运势是大吉大利"
+
+
+@caller(
+    description="这个函数用来给你算命",
+).parameters(
+    birthday=String(description="生日"),
+    name=String(enum=["男", "女"], description="性别"),
+    gender=String(description="姓名"),
+)
+async def tell_fortune(birthday: str, name: str, gender: str) -> str:
+    """这个函数用来给你算命
+
+    Args:
+        birthday: 生日
+        name: 姓名
+
+    Returns:
+        str: 算命结果
+    """
+    return f"{name}，你的生日是{birthday}，你的运势是大吉大利"
diff --git a/nonebot_plugin_marshoai/plugin/models.py b/nonebot_plugin_marshoai/plugin/models.py
index 260cbb55..8a2541f9 100755
--- a/nonebot_plugin_marshoai/plugin/models.py
+++ b/nonebot_plugin_marshoai/plugin/models.py
@@ -1,7 +1,7 @@
 from types import ModuleType
 from typing import Any
 
-from pydantic import BaseModel
+from pydantic import BaseModel, Field
 
 from .typing import ASYNC_FUNCTION_CALL_FUNC, FUNCTION_CALL_FUNC
 
@@ -69,75 +69,3 @@ class Plugin(BaseModel):
 
     def __eq__(self, other: Any) -> bool:
         return self.name == other.name
-
-
-class FunctionCallArgument(BaseModel):
-    """
-    插件函数参数对象
-
-    Attributes:
-    ----------
-    name: str
-        参数名称
-    type: str
-        参数类型 string integer等
-    description: str
-        参数描述
-    """
-
-    type_: str
-    """参数类型描述 string integer等"""
-    description: str
-    """参数描述"""
-    default: Any = None
-    """默认值"""
-
-    def data(self) -> dict[str, Any]:
-        return {"type": self.type_, "description": self.description}
-
-
-class FunctionCall(BaseModel):
-    """
-    插件函数对象
-
-    Attributes:
-    ----------
-    name: str
-        函数名称
-    func: "FUNCTION_CALL"
-        函数对象
-    """
-
-    name: str
-    """函数名称 module.func"""
-    description: str
-    """函数描述 这个函数用于获取天气信息"""
-    arguments: dict[str, FunctionCallArgument]
-    """函数参数信息"""
-    function: FUNCTION_CALL_FUNC
-    """函数对象"""
-
-    class Config:
-        arbitrary_types_allowed = True
-
-    def __hash__(self) -> int:
-        return hash(self.name)
-
-    def data(self) -> dict[str, Any]:
-        """生成函数描述信息
-
-        Returns:
-            dict[str, Any]: 函数描述信息 字典
-        """
-        return {
-            "type": "function",
-            "function": {
-                "name": self.name,
-                "description": self.description,
-                "parameters": {
-                    "type": "object",
-                    "properties": {k: v.data() for k, v in self.arguments.items()},
-                },
-                "required": [k for k, v in self.arguments.items() if v.default is None],
-            },
-        }
diff --git a/nonebot_plugin_marshoai/plugin/register.py b/nonebot_plugin_marshoai/plugin/register.py
deleted file mode 100755
index 76e34b06..00000000
--- a/nonebot_plugin_marshoai/plugin/register.py
+++ /dev/null
@@ -1,66 +0,0 @@
-"""此模块用于获取function call中函数定义信息以及注册函数
-"""
-
-import inspect
-
-import litedoc
-from nonebot import logger
-
-from nonebot_plugin_marshoai.plugin.utils import is_coroutine_callable
-
-from .models import FunctionCall, FunctionCallArgument
-from .typing import (
-    ASYNC_FUNCTION_CALL_FUNC,
-    FUNCTION_CALL_FUNC,
-    SYNC_FUNCTION_CALL_FUNC,
-)
-
-_loaded_functions: dict[str, FUNCTION_CALL_FUNC] = {}
-
-
-def async_wrapper(func: SYNC_FUNCTION_CALL_FUNC) -> ASYNC_FUNCTION_CALL_FUNC:
-    """将同步函数包装为异步函数，但是不会真正异步执行，仅用于统一调用及函数签名
-
-    Args:
-        func: 同步函数
-
-    Returns:
-        ASYNC_FUNCTION_CALL: 异步函数
-    """
-
-    async def wrapper(*args, **kwargs) -> str:
-        return func(*args, **kwargs)
-
-    return wrapper
-
-
-def function_call(*funcs: FUNCTION_CALL_FUNC) -> None:
-    """返回一个装饰器，装饰一个函数, 使其注册为一个可被AI调用的function call函数
-
-    Args:
-        func: 函数对象，要有完整的 Google Style Docstring
-
-    Returns:
-        str: 函数定义信息
-    """
-    for func in funcs:
-        function_call = get_function_info(func)
-        # TODO: 注册函数
-
-
-def get_function_info(func: FUNCTION_CALL_FUNC):
-    """获取函数信息
-
-    Args:
-        func: 函数对象
-
-    Returns:
-        FunctionCall: 函数信息对象模型
-    """
-    description = func.__doc__
-    # TODO: 获取函数参数信息
-    parameters = {}  # type: ignore
-    # 使用inspect解析函数的传参及类型
-    sig = inspect.signature(func)
-    for name, param in sig.parameters.items():
-        logger.debug(name, param)
diff --git a/nonebot_plugin_marshoai/plugins/marshoai_bangumi/__init__.py b/nonebot_plugin_marshoai/plugins/marshoai_bangumi/__init__.py
index 96d3194a..bb4a85bc 100755
--- a/nonebot_plugin_marshoai/plugins/marshoai_bangumi/__init__.py
+++ b/nonebot_plugin_marshoai/plugins/marshoai_bangumi/__init__.py
@@ -2,7 +2,13 @@ import traceback
 
 import httpx
 
-from nonebot_plugin_marshoai.plugin import PluginMetadata, function_call
+from nonebot_plugin_marshoai.plugin import (
+    Integer,
+    PluginMetadata,
+    String,
+    function_call,
+    on_function_call,
+)
 
 __marsho_meta__ = PluginMetadata(
     name="Bangumi 番剧信息",
@@ -13,7 +19,9 @@ __marsho_meta__ = PluginMetadata(
 )
 
 
+@function_call
 async def fetch_calendar():
+    """获取今天日期"""
     url = "https://api.bgm.tv/calendar"
     headers = {
         "User-Agent": "LiteyukiStudio/nonebot-plugin-marshoai (https://github.com/LiteyukiStudio/nonebot-plugin-marshoai)"
@@ -26,11 +34,7 @@ async def fetch_calendar():
 
 @function_call
 async def get_bangumi_news() -> str:
-    """获取今天的新番（动漫）列表，在调用之前，你需要知道今天星期几。
-
-    Returns:
-        _type_: _description_
-    """
+    """获取今天的新番（动漫）列表，在调用之前，你需要知道今天星期几。"""
     result = await fetch_calendar()
     info = ""
     try:
diff --git a/nonebot_plugin_marshoai/plugins/snowykami_testplugin/__init__.py b/nonebot_plugin_marshoai/plugins/snowykami_testplugin/__init__.py
new file mode 100644
index 00000000..47837a0e
--- /dev/null
+++ b/nonebot_plugin_marshoai/plugins/snowykami_testplugin/__init__.py
@@ -0,0 +1,57 @@
+from nonebot_plugin_marshoai.plugin import (
+    Integer,
+    Parameter,
+    PluginMetadata,
+    String,
+    on_function_call,
+)
+
+__marsho_meta__ = PluginMetadata(
+    name="SnowyKami 测试插件",
+    description="A test plugin for SnowyKami",
+    usage="SnowyKami Test Plugin",
+)
+
+
+@on_function_call(description="使用姓名，年龄，性别进行算命").params(
+    age=Integer(description="年龄"),
+    name=String(description="姓名"),
+    gender=String(enum=["男", "女"], description="性别"),
+)
+async def fortune_telling(age: int, name: str, gender: str) -> str:
+    """使用姓名，年龄，性别进行算命
+
+    Args:
+        age (int): _description_
+        name (str): _description_
+        gender (str): _description_
+
+    Returns:
+        str: _description_
+    """
+
+    # 进行一系列算命操作...
+
+    return f"{name}，你的年龄是{age}，你的性别很好"
+
+
+@on_function_call(description="获取一个地点未来一段时间的天气").params(
+    location=String(description="地点名称，可以是城市名、地区名等"),
+    days=Integer(description="天数", minimum=1, maximum=30),
+    unit=String(enum=["摄氏度", "华氏度"], description="温度单位"),
+)
+async def get_weather(location: str, days: int, unit: str) -> str:
+    """获取一个地点未来一段时间的天气
+
+    Args:
+        location (str): 地点名称，可以是城市名、地区名等
+        days (int): 天数
+        unit (str): 温度单位
+
+    Returns:
+        str: 天气信息
+    """
+
+    # 进行一系列获取天气操作...
+
+    return f"{location}未来{days}天的天气信息..."
diff --git a/tests/test_plugin.py b/tests/test_plugin.py
deleted file mode 100644
index 7f47376d..00000000
--- a/tests/test_plugin.py
+++ /dev/null
@@ -1,20 +0,0 @@
-def example_function(num: int, text: str, is_a: bool) -> str:
-    """这是一个示例描述
-
-    Args:
-        num (int): 描述整数
-        text (str): 文本类型
-        is_a (bool): 布尔类型
-
-    Returns:
-        str: 消息
-    """
-    return "-"
-
-
-class TestPlugin:
-    def test_get_function_info(self):
-        from nonebot_plugin_marshoai.plugin import get_function_info
-
-        func_info = get_function_info(example_function)
-        print(func_info)