This is genuinely the only way to do it now in a way that will not virtually guarantee some new and exciting ways to subvert your system. I briefly toyed with an idea of giving agent a vm playground, but I scrapped it after a while. I gave mine an old ( by today's standards ) pentium box and small local model to draw from, but, in truth, the only thing it really does is limit the amount of damage it can cause. The underlying issue remains in place.