Quick answer: 9arm-skills is a small Claude Code skills repo by 9arm, a Thai creator: 6 skills, buckets modeled on Matt Pocock's repo. The part worth taking is a skill called qwen-agent, about handing menial work to a cheap model and keeping the expensive one for judgment. It's a cost idea none of the four bigger repos I reviewed have.
I have reviewed four Claude Code skill repos so far, some with hundreds of thousands of stars. This one is different. 9arm, a Thai creator, has a repo of around 2,900 stars, far smaller, just 6 skills, and its bucket layout is borrowed straight from Matt Pocock's repo.
To be straight: on scale or fame, this repo isn't in the same league as the other four. But it has one skill sharp enough to be worth writing up, and it covers something the other four don't: controlling cost by choosing which model does which job. So this isn't a review of the whole set. It's taking the single most useful idea.
Terms, defined once, right here:
skill — a set of instructions in a file that tells the AI to follow a given process for a given task.
