Coleoni Coleoni Skills
Skills for Claude Code, Codex and other agents

Tools from my workflow, open.

The skills I use to ship projects, free. Each one comes with the code, a walkthrough and real examples.

npx skills add c0le0ni/skills
View on GitHub
Image made by coleoni-thumb: Coleoni OS in a browser and a phone
/coleoni-thumb

Portfolio thumbnails from the real screens of your project.

Captures the site on desktop and mobile and sets the screens in browser and phone frames, on a background taken from its own palette. Exports JPG at 1× and 2×.

6 layouts · 7 backgrounds · 1× and 2×
The next skill goes here.
How to use

One command installs it.

Nothing to configure. The skills follow the open SKILL.md standard, so they work in any agent that reads it.

  1. 01

    Install

    npx skills add c0le0ni/skills downloads the skills from GitHub and asks which ones you want.

  2. 02

    Pick your agent

    Claude Code, Codex, Cursor, Gemini CLI and more. Per project or for your whole user.

  3. 03

    Call it by name

    A slash, the name and what you want, in plain words. /coleoni-thumb https://yoursite.com