Ask HN: Do Agent skills make a difference?

I am unconvinced that agent skills are that impressive. My context is that I've built up a stack of "rules / playbooks" but these are just basic rules I would use for myself or a team.

This is the kind of thing any good team or dev writes so they have checklists. And the content is really best (if uncommon) practice.

But then I real and watch all kinds of people getting excited about what skills let them do.

And given that you can use AI to write any code to adapt to any database / system / integration, the most "wowish" thing is a skill which connects to another system... but that's just a skill + some code, and that's easy! I don't get it.

Has anyone actually measured the impact of these on a range of scenarios and users?