[dotemacs]

Isn't that what Geoff did: https://ghuntley.com/cursed/

OK, it wasn't a Claude Skill, but it was done using Claude.

[simonw]

That's slightly different - that's draining and implementing a new language from scratch, not just using LLMs to help onboard new language users.

That said, part of what he did with Cursed was get LLMs to read its own documentation and use that to test and demonstrate the language.