How would you define a "work" ?
In general, I think I agree with the view that works are the means through which merit is generated. So, if one goes through life participating in rituals and doing good deeds because that is central to his understanding of salvation/theosis, then he follows what I call a "works-based" salvation model. Reformers, OTOH, believe that salvation is had not by the "works" of men, but by the work of Christ already done.