Claude Code plugins

Package and share custom Claude Code functionality: bundle slash commands, sub-agents, and hooks for reusable, versioned workflow extensions.

Claude Code plugins are the standardized extension system for the Claude Code agentic terminal tool. They package custom functionality—like slash commands, sub-agents, hooks, and MCP servers—into reusable, versioned bundles. This architecture allows developers to standardize and share specific toolchains and project conventions across teams (e.g., a 'security-review' plugin). Plugins move beyond local configuration, enabling distribution through marketplaces and installation via the `/plugin` command for consistent, efficient workflows on any project.

https://docs.claude.com/en/docs/claude-code/plugins