Skillc — Development skill for Claude Code

skillc

Skills that don't break when you share them.

**New here, or not into command lines?** [**Start on the skillc site →**](https://baron-3dl.github.io/skillc/) — a plain-language walkthrough with a live demo. Nothing to install to look. Come back here when you want the details.

You got Claude doing something just right. You share it, and for everyone else it falls flat, because it quietly leaned on *your* setup. skillc is a **skill that makes skills**: tell it what you want, show it a couple of examples you like, and it hands you one file you can send to anyone.

What makes the file different is what is inside it. It does not carry finished instructions; it carries the examples you approved, plus a recipe. The first time someone uses it, their Claude rebuilds the skill against its own setup, tests itself on a few examples it was never shown, and reports a score. So the skill works there, or it says plainly that it does not, instead of quietly doing the wrong thing.

Get skillc

Install it once, like any skill.

• Claude Code: /plugin marketplace add baron-3dl/skillc, then /plugin install skillc@skillc.
• claude.ai: download skillc.zip, turn on "Code Execution and File Creation" (Settings, then Capabilities), then upload the zip under Customize, then Skills (the "+" button, then "Upload a skill").
• OpenCode: unzip skillc.zip into ~/.claude/skills/; it is picked up automatically.

Skills work on every Claude plan, Free included. The claude.ai Code Execution switch is a one-time toggle.

Use it

Just ask, in plain words:

skillc, make me a skill that writes my emails in my voice

It asks a few questions (what you want, a couple of examples you like, your taste), shows you a test, and you say "yes" or "tweak that." Then it hands you the finished skill as one file.

Share what you make

Send the file to anyone. They install it the same way