Demo Claude Marketplace — Development skill for Claude Code

Claude Code Private Marketplace Demo

A teaching project that shows how to build a private plugin marketplace for Claude Code. Contains two example plugins with agents, commands, and skills -- everything you need to understand the plugin architecture and start building your own.

What This Demo Shows

If you have been looking at Claude Code plugins and wondering "how do I actually structure a private marketplace for my team?" -- this is your reference. The repository demonstrates:

• How to create a marketplace manifest (marketplace.json) that lists and distributes plugins
• How to structure plugins with agents, commands, and skills
• How plugins, project config (CLAUDE.md), and settings work together to form the full Claude Code experience

This is a demo. The plugins here are illustrative -- they show the correct file structure and conventions, not production-ready tooling. Use this as a starting point, then refer to the official docs linked below for the full specification.

Project Structure

demo-claude-marketplace/
├── .claude-plugin/
│   └── marketplace.json          # Marketplace manifest -- lists all plugins
├── claude-plugins/
│   ├── data-toolkit/
│   │   ├── .claude-plugin/
│   │   │   └── plugin.json       # Plugin metadata (name, description, version)
│   │   ├── agents/               # Subagent definitions (data-engineer, pipeline-architect)
│   │   ├── commands/             # Slash commands (ingest, transform)
│   │   └── skills/               # Skills organized by domain (sql/, etl/)
│   └── api-guardian/
│       ├── .claude-plugin/
│       │   └── plugin.json
│       ├── agents/               # Subagent definitions (security-auditor, api-reviewer)
│       ├── commands/             # Slash commands (audit, scan)
│       └── skills/               # Skills organized by domain (openapi/, security/)
├── CLAUDE.md                     # Project-level memory and conventions
└── README.md

How Plugin Marketplaces Work

A mar