1---
 2title: Extensions
 3description: "Extend Zed with themes, language support, AI tools, and more through the extension system."
 4---
 5
 6# Extensions
 7
 8Zed lets you add new functionality using user-defined extensions.
 9
10- [Installing Extensions](./extensions/installing-extensions.md)
11- [Extension Capabilities](./extensions/capabilities.md)
12- [Developing Extensions](./extensions/developing-extensions.md)
13  - [Developing Language Extensions](./extensions/languages.md)
14  - [Developing Debugger Extensions](./extensions/debugger-extensions.md)
15  - [Developing Themes](./extensions/themes.md)
16  - [Developing Icon Themes](./extensions/icon-themes.md)
17  - [Developing Slash Commands](./extensions/slash-commands.md)
18  - [Developing Agent Servers](./extensions/agent-servers.md)
19  - [Developing MCP Servers](./extensions/mcp-extensions.md)