asking an agent to develop that skill on its own will end in disappointment.

What I do is:

1. Bot builds skill
2. I review it
3. Install it
4. Use it interactively a couple of times
5. Shit goes very wrong
6. Suggest improvement
7. Cleanup
8. Review
9. Spank the bot, more cleanup
10. Install the new version
11. Goto 4.

Continuous improvement, and this is why you want to have bespoke tools.