A skill is a tiny folder: instructions, examples, maybe a script. Claude only loads it when relevant, so you don’t have to shovel context every time. And since you can include real code, the output becomes predictable, not “vibes-based.”
I’ve been testing them for scaffolding projects, enforcing team conventions, generating boilerplate and cleaning data. It’s shockingly effective. You can learn more about my testing here: https://www.shuttle.dev/blog/2025/12/02/claude-skills-complete-guide
Feels like a missing primitive for AI-assisted dev work.
Anyone else playing with these yet?