Originally Posted by
Grod_The_Giant
Weirdly, the revised TOOL rules in Xanathar's are a quite GOOD example of how 5e should have presented skills from the beginning. For each tool, there are a few points on how they interact with other skills, a table of example DCs, and a couple unique things you can do with said skill, like making traps with Thief's Tools. There's enough to give you a firm grasp on things without being overwhelming.
I would love to see the designers put something like that in a future book, but given the release schedule that'll probably be in like 2025 or something. Maybe I should write some myself...