Cross-agent skills · GitHub Copilot · Claude · Codex

jongio/skills

Jon Gallant's collection of skills for AI coding agents. Each skill lives in its own folder and installs individually or all at once — works with any agent that supports the SKILL.md format.

Browse skills View on GitHub

npx skills add jongio/skills --all

Skills

create-canvas-app

Build GitHub Copilot canvas extensions fast — a no-build Preact + htm kit with live SSE state, durable per-user storage, optional multiplayer state shared through a private GitHub repo, Primer theming, the official Lucide icon set, a one-command generator, and deep links into the app.

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Install in your agent

install create-canvas-app from jongio/skills

create-gh-pages-site

Scaffold a working GitHub Pages site from a vetted template (static, Astro, React + Vite, Eleventy, or Jekyll) — the correct base path, the official GitHub Actions deploy, and content authored from your repo.

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Install in your agent

install create-gh-pages-site from jongio/skills

repo-ready

Scaffold and maintain the standard community health files every GitHub repository needs: .gitignore, .gitattributes, LICENSE, CONTRIBUTING, issue templates, CI workflows, dependabot, editorconfig, and repo metadata.

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Install in your agent

install repo-ready from jongio/skills

naming-is-hard

Interactive naming assistant for projects, CLIs, and products — generates diverse candidate names, learns your preferences, validates availability across domains, GitHub, package registries, and social handles, and screens for trademark and existing-business collisions.

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Install in your agent

install naming-is-hard from jongio/skills

Install

Pick whichever fits your setup.

1 · Ask your agent

In Copilot (or any agent that supports plugins), just say:

install jongio/skills

2 · Skills CLI

npx skills add jongio/skills --list
npx skills add jongio/skills --skill create-canvas-app -g --agent github-copilot

3 · Copilot plugin marketplace

From the CLI:

copilot plugin marketplace add jongio/skills
copilot plugin install create-canvas-app@jongio-skills

Or in the Copilot app, no commands needed:

Open Settings and select Plugins.
Click Install ▾ → Add marketplace, enter jongio/skills, and click Add marketplace.
The marketplace's skills appear grouped under jongio-skills. Click Install on the one you want.
The skill installs and is enabled, ready to use right away.

4 · Whole repo as one plugin

copilot plugin install jongio/skills

After any install, reload with /skills reload or start a new session.