feat: tool loader abstraction

pkg/provider/tools/loader.py

@@ -3,11 +3,11 @@ from __future__ import annotations
 import abc
 import typing
 
-from ...core import app
+from ...core import app, entities as core_entities
 from . import entities as tools_entities
 
 
-preregistered_loaders = []
+preregistered_loaders: list[typing.Type[ToolLoader]] = []
 
 def loader_class(name: str):
     """注册一个工具加载器
@@ -34,6 +34,16 @@ class ToolLoader(abc.ABC):
         pass
 
     @abc.abstractmethod
-    def get_tools(self) -> list[tools_entities.LLMFunction]:
+    async def get_tools(self, enabled: bool=True) -> list[tools_entities.LLMFunction]:
         """获取所有工具"""
         pass
+
+    @abc.abstractmethod
+    async def has_tool(self, name: str) -> bool:
+        """检查工具是否存在"""
+        pass
+
+    @abc.abstractmethod
+    async def invoke_tool(self, query: core_entities.Query, name: str, parameters: dict) -> typing.Any:
+        """执行工具调用"""
+        pass