Class StaticToolExecutor

tutorials/18_design_patterns_for_agents.py:502–515

对应 conversation.rs:429-447

    print("  Builder 2: StaticToolExecutor (工具注册)")

    class StaticToolExecutor:
        """对应 conversation.rs:429-447"""
        def __init__(self):
            self._handlers: dict[str, Callable] = {}

        def register(self, name: str, handler: Callable) -> StaticToolExecutor:
            """对应 .register(tool_name, handler) -> Self"""
            self._handlers[name] = handler
            return self  # 链式调用

        def execute(self, name: str, inp: str) -> str:
            if name not in self._handlers:
                raise KeyError(f"unknown tool: {name}")
            return self._handlers[name](inp)

    executor = (
        StaticToolExecutor()