The Escapists 3 XP carries between prisons
The announcement says you earn XP, unlock skills, and carry those options into the next prison. It does not name the skills.
The 8 October 2026 press release says this directly: new to The Escapists 3, inmates gain XP as they play, unlocking skills and gameplay options that carry over to each prison. Harley Homewood's quotation in that release is about 3D facilities, not about a skill list.
The Steam about text says you earn XP, unlock skills, develop different strengths, and take what you learned into the next prison. It also invites cell customisation. Neither source names a skill, a level cap, or a cost.
Until a skill list exists, there is nothing to rank or calculate. The useful fact is the carry-over rule, and the limit is that the rule has no published tree.