# Mantle > A free, open-source (MIT) Claude Code plugin: themes and 4K wallpapers for Claude Code, Windows Terminal, iTerm2 and claude.ai; Mantle Atlas, a knowledge base of 30,000+ agent skills, 17,000+ MCP connectors and 440 plugins; and Mantle Doctor, a check-up for a Claude Code setup. Version 0.3.0. Install in Claude Code: `/plugin install mantle --marketplace AkshitTiwarii/mantle`. Skills only, in any agent: `npx skills add AkshitTiwarii/mantle`. ## Docs - [README](https://github.com/AkshitTiwarii/mantle#readme): everything Mantle does, commands and where it works - [Changelog](https://github.com/AkshitTiwarii/mantle/blob/main/CHANGELOG.md) - [Mantle Atlas skill](https://github.com/AkshitTiwarii/mantle/blob/main/mantle/skills/mantle-atlas/SKILL.md): find the right skill, MCP connector or plugin; stack recommendations; trust check - [Mantle Doctor skill](https://github.com/AkshitTiwarii/mantle/blob/main/mantle/skills/mantle-doctor/SKILL.md): context cost, CLAUDE.md lint, MCP and permission checks ## Website - [Gallery](https://mantle.akshittiwari.me): themes, wallpapers, skills, connectors and plugins with install commands - [Explore](https://mantle.akshittiwari.me/explore): search all 47,000+ skills, connectors and plugins - [Make a theme](https://mantle.akshittiwari.me/make): build a theme from colors or a wallpaper