return

Skills

Skills I’ve written for coding agents, each one a command away.

/hairline-create

Draws a new figure in the style of Hairline from an idea you give it: an isometric line drawing, built from rounded solids in a single stroke, that answers the pointer. It checks the figure against the rules before handing it over as one HTML file with nothing to install. Below are the two figures it ships with as examples, the bar it holds its own work to.

hairline-terrain.html
npx skills add lucasmarkes/hairline

/faq

What is a skill?

A folder of instructions an agent reads when a task calls for it: a SKILL.md, and whatever else it needs. hairline-create carries the Hairline engine, its rules, and two finished figures to measure against.

How do I install one?

Run the command under it. The skills CLI asks which of your agents should have it and puts the folder where each of them looks.

Which agents does it work with?

Any agent that reads skills, which today includes Claude Code, Codex and Cursor.

How do I use it?

Type /hairline-create and the idea after it, or just ask your agent for a Hairline figure. You get one HTML file back that opens in any browser.

How do I get updates?

Run npx skills update. It pulls the latest version of every skill you’ve installed.