Looking at the Reference doc, there are 6 Star Trek skills left, and yeah, they do look rather important. Really, one could say that at least half of them are necessary foundational skills that Joe is sorely lacking and the other half are very nice to have in and of themselves.
Hmmm, yeah, I hope he lands 600 cp on that cluster and claims them all, espionage and communication especially.
Edit: For whoever updates the Reference doc, the Jumpchain docs and perk counts part is messed up a little.
Stargate SG-1 is listed twice (thankfully with the jumpdoc only posted once) while Symphogear's jumpdoc isn't posted at all.
I am not on the discord, chronic anxiety makes real time chat a nightmare for me, so there may be a reason for this, but I thought I would give a heads up.
Edit2: Thank you dilnu tsani for working toward fixing it