ai-builder-kit

A collection of skills, plugins, and hooks for AI coding agents. Works as a Claude Code plugin marketplace, a Codex plugin marketplace, and a plain skills repo for npx skills. Every skill is a portable SKILL.md, so the same folder works in Claude Code, Codex, and any agent that follows the Agent Skills spec.

Available Skills

Available Plugins

Getting Started

Pick one path. They all read the same skills/ folder.

Option A: npx skills (any agent, one skill at a time)

npx skills add jackzhaojin/ai-builder-kit --list                       # see what is available
npx skills add jackzhaojin/ai-builder-kit --skill excalidraw            # into this project
npx skills add jackzhaojin/ai-builder-kit --skill excalidraw -g -a claude-code codex   # global, Claude Code + Codex
npx skills add jackzhaojin/ai-builder-kit -g -y                         # everything, global
npx skills update -g -y                                                 # pull updates later

Codex and OpenCode read ~/.agents/skills directly, so a global install shows up in both with no extra step.

Option B: Claude Code plugin marketplace

Every skill is a plugin of the same name, and ai-builder-kit is a bundle of all of them. Install the bundle or individual skills, not both, or the skills load twice.

claude plugin marketplace add jackzhaojin/ai-builder-kit
claude plugin install excalidraw@ai-builder-kit                # one skill
claude plugin install ai-builder-kit@ai-builder-kit            # every skill
claude plugin install hlx-admin-api-executor-guarded@ai-builder-kit   # skill + enforced hook

Or in a session: /plugin > Marketplaces > Add > jackzhaojin/ai-builder-kit, then Discover. The same marketplace can be pinned for a team in ~/.claude/settings.json:

{
  "extraKnownMarketplaces": {
    "ai-builder-kit": {
      "source": { "source": "git", "url": "https://github.com/jackzhaojin/ai-builder-kit.git" }
    }
  }
}

Plugin entries carry no pinned version, so /plugin update picks up every push to main.

Option C: Codex and the ChatGPT desktop app

The repo ships .agents/plugins/marketplace.json with one plugin, ai-builder-kit, that bundles all skills (portable manifest in plugin.json).

codex plugin marketplace add jackzhaojin/ai-builder-kit

Then restart the ChatGPT desktop app, open the Plugins Directory, choose the AI Builder Kit marketplace, and install. For single skills in Codex, use Option A with -a codex.

Keeping it up to date

Skill entries carry no pinned version, so every push to main is an update. Pull it with whichever path you installed from:

Repo layout