def skaff_description_get(short: bool=True) -> str:
    """
    Returns the description string of the skaff program.
    A concise description will be returned if 'short' is set to True; otherwise
    the full version is returned instead.
    """
    short_description = "An Extensible Project Scaffolding Tool"
    long_description = ("Skaff is a Python library for building programming "
                        "language dependent scaffolding of software projects, "
                        "and a command-line tool that uses this library with "
                        "built-in (CMake-based) C/C++ support.")
    if short:
        return short_description
    else:
        return long_description