def resultIsSuccess(res):
    """
    JSON-decoded stake pool responses have a common base structure that enables
    a universal success check.

    Args:
        res (dict): The freshly-decoded-from-JSON response.

    Returns:
        bool: True if result fields indicate success.
    """
    try:
        return res["status"] == "success"
    except (KeyError, TypeError):
        return False