In Germany we say “gelernt ist gelernt” (“learned is learned”) when someone is very good at something.
We can sometimes do something and it is good enough. Or we cheat, find a short cut or mimic a skill, but all this is short term thinking and behaviour.
Owning a skill is something valuable. Something people need at the right time. Something people will pay for.
If you can repeat a result with high quality then you have a skill.