[ElevenLathe]

The bigger problem I have as a worker is that, once I externalize it (by writing a skill or whatever), it becomes a work-for-hire whose copyright is owned by my employer. Technically this is true of a few other things I do for work, like my .emacs and .bashrc files, small scripts I keep in ~/bin on my workstation, etc., but no employer cares to assert this unless they're being assholes for some unrelated reason. Agent skill files, especially ones that seem to semi-reliably do what they say on the tin (the white whale!), are not like that at all, and I can see them pursuing you if you try to use them at a future employer.

[hammock]

This is a solid point and the only answer to it I can think of is that execution is 99x harder than ideas. Even if you enumerate everything someone else trying to use it is still going to muck it up