They contain broad overviews(throw some disease-causing bacteria in a sort of rainbow arrangement of increasingly more effective antibiotics, you'll usually get something that's at least very deadly even if it doesn't have pandemic potential) but executing in a real lab takes a ton of trial and error to figure out the details. The issue is that the details ~all exist somewhere in the training dataset already, discovered and documented over the course of unrelated, benign biology research. Ability to quickly and accurately search over that corpus translates to large speedups in the physical development process.