A skill is a single Markdown file that teaches an AI agent

I stopped reading right there.

was anyone ever arguing that skills are the same thing as a cli? where did this goofy ass argument even come from?

Skills Are the New CLI

4th paragraph:

Skills don’t replace CLIs.

Great start.

Anyway, skills are basically an alternative to tools. I believe Anthropic made a big deal about them. They come with all the same downsides using an LLM at all comes with, which means they’re fallible, nondeterministic, and possibly even an attack vector. But hey, it saves you remembering a few flags for git so whatever I guess.