These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.01 s (backtrack: 0/20).

[ebuild  N     ] app-misc/skim-5.6.6::gentoo  USE="-debug -test" 38832 KiB

Total: 1 package (1 new), Size of downloads: 38832 KiB