spec

Claude Code Plugins

A collection of plugins for Claude Code.

Installation

Using the Plugin Command (Recommended)

In Claude Code, run:

/plugin marketplace add hl/mp

Then browse and install plugins:

/plugin

Navigate to the Discover tab to see available plugins, or install directly:

/plugin install <plugin-name>@hl-mp

Manual Installation

1. Clone the Repository

git clone https://github.com/hl/mp.git ~/.claude/hl-mp

2. Add to Claude Code Settings

Edit ~/.claude/settings.json:

{
  "extraKnownMarketplaces": {
    "hl-mp": {
      "source": {
        "source": "github",
        "repo": "hl/mp"
      }
    }
  }
}

Installing Plugins

Via Plugin Command

/plugin install <plugin-name>@hl-mp

Choose installation scope:

• User: Available across all projects (default)
• Project: Shared with team via version control
• Local: Personal to this repo only

Manual Installation

Skills

cp -r ~/.claude/hl-mp/plugins/skills/<plugin-name>/skills/<plugin-name> ~/.claude/skills/<plugin-name>

Available Plugins

Skills

Plugin	Description
oi	Inter-session messaging for Claude Code — send and receive messages between independent sessions.
spec	Spec-driven development: collaboratively write testable specifications, review them for gaps and contradictions, then implement them with tests-first incremental builds.

Contributing

See CONTRIBUTING.md for details.

Quick start:

1. Create plugins/<type>/<your-plugin>/
2. Add .claude-plugin/plugin.json with plugin metadata
3. Add plugin files
4. Run npm run build:registry
5. Submit a pull request

Documentation

• Contributing Guide
• Plugin Types

Development

npm run build:registry   # Build .claude-plugin/marketplace.json
npm run validate         # Build and display the registry

License

MIT