Plugins extend Claude Code with new tools and capabilities. This guide covers installation only - see the full article for when and why to use them.

Marketplaces are repositories of installable plugins.

# Add official Anthropic marketplace
claude plugin marketplace add https://github.com/anthropics/claude-plugins-official

# Add community marketplaces (mgrep by @mixedbread-ai)
claude plugin marketplace add https://github.com/mixedbread-ai/mgrep

# Open plugins browser
/plugins

# Or install directly
claude plugin install typescript-lsp@claude-plugins-official

Development:

• typescript-lsp - TypeScript intelligence
• pyright-lsp - Python type checking
• hookify - Create hooks conversationally
• code-simplifier - Refactor code

Code Quality:

• code-review - Code review
• pr-review-toolkit - PR automation
• security-guidance - Security checks

Search:

• mgrep - Enhanced search (better than ripgrep)
• context7 - Live documentation lookup

Workflow:

• commit-commands - Git workflow
• frontend-design - UI patterns
• feature-dev - Feature development

# Add marketplaces
claude plugin marketplace add https://github.com/anthropics/claude-plugins-official
claude plugin marketplace add https://github.com/mixedbread-ai/mgrep

# Open /plugins and install what you need

~/.claude/plugins/
|-- cache/                    # Downloaded plugins
|-- installed_plugins.json    # Installed list
|-- known_marketplaces.json   # Added marketplaces
|-- marketplaces/             # Marketplace data