Okay it's been a long time since I've read hs but like, what is it you need for successful session? You at least need to prototype the kernels once before entering, and I think you need a space player? For frog duties, right? Is there anything else?

Time Players are implied to be necessary, although so far the only reason I’ve seen for that is to have a way of changing things in case the Timeline goes wrong- Since otherwise you have pretty much just one shot to complete the Session, and may not have enough time to finish the Frog Breeding.

That’s… Pretty much the only requirements.