Method is_allowed

tutorials/18_design_patterns_for_agents.py:550–552

(self, tool_name: str)

            return self  # 链式调用

        def is_allowed(self, tool_name: str) -> bool:
            required = self._requirements.get(tool_name, PermissionMode.DangerFullAccess)
            return self._active_mode >= required

    policy = (
        PermissionPolicy(PermissionMode.WorkspaceWrite)