External Plugins

Install official Claude Code plugins via the installer.

How It Works

External plugins are installed using the official claude plugin CLI. The installer:

1. Registers the plugin marketplace (if needed)
2. Installs the plugin via claude plugin install
3. Enables the plugin automatically

This is different from Skills (which are copied to ~/.claude/skills/). External plugins are managed by Claude Code itself.

Available Plugins

Document Creation

• document-skills - Excel, Word, PowerPoint, PDF

Code Quality

• code-review-ai - Architectural review (recommended)

Installation

External plugins are offered during installation:

./install.sh        # Fresh install
./install.sh --add  # Add to existing installation

You’ll see a selection like:

External Plugins (via Claude CLI):

    ○ document-skills - Excel, Word, PowerPoint, PDF creation/editing
  ❯ ◉ code-review-ai - AI-powered architectural review (recommended)

  ↑↓ navigate  ⎵ toggle  ⏎ confirm

Manual Installation

You can also install plugins directly via Claude Code:

# Add marketplace (once)
claude plugin marketplace add anthropics/skills
 
# Install plugin
claude plugin install document-skills@anthropic-agent-skills
 
# List installed plugins
claude plugin list

Adding Custom Plugins

Create ~/.claude/custom/external-plugins.json:

{
  "marketplaces": {
    "my-company": {
      "repo": "mycompany/claude-plugins",
      "description": "Internal company plugins"
    }
  },
  "plugins": [
    {
      "id": "company-standards",
      "marketplace": "my-company",
      "description": "Company coding standards"
    }
  ]
}

These will appear in the installer alongside the default plugins.

Requirements

• Claude Code CLI must be installed and available
• Network access during installation (plugins are downloaded)
• If CLI is not available, external plugins are skipped silently