We have the
"Skills You Can't Live Without" challenge, although take note that this is simply the skills that must be used
no matter what solution you use, not a complete set that the level can be solved with these and nothing else. (ie: if a level can be solved with 1 Builder + 1 Basher, or 1 Builder + 1 Miner, then the SYCLW result would just be "1 builder", as you can avoid the basher
or the miner by using the other one instead, but you can't avoid the builder no matter what you do).
There's also
fewest skills challenge, but this is purely about a quantity of skills, not specifically
which ones.
The other thing to keep in mind is both of these lists include results that require glitches to achieve.
It sounds like what you're after is basically just a more restrictive skillset for each level, akin to the repeat versions of levels in L1. There isn't really a single "right" answer to any of these - taking Tricky 1 as an example, one person may suggest 2 bombers 2 builders 1 basher with a lose-2 save requirement; another might suggest 10 builders (and nothing else) with 100% required, and there's plenty more possibilities too.