Zed lets you add new functionality using user-defined extensions.

- Installing Extensions: [Installing Extensions](/content/docs/extensions/installing-extensions.html)
- Extension Capabilities: [Extension Capabilities](/content/docs/extensions/capabilities.html)
- Developing Extensions: [Developing Extensions](/content/docs/extensions/developing-extensions.html)
  - Developing Language Extensions: [Developing Language Extensions](/content/docs/extensions/languages.html)
  - Developing Debugger Extensions: [Developing Debugger Extensions](/content/docs/extensions/debugger-extensions.html)
  - Developing Themes: [Developing Themes](/content/docs/extensions/themes.html)
  - Developing Icon Themes: [Developing Icon Themes](/content/docs/extensions/icon-themes.html)
  - Developing Snippets: [Developing Snippets](/content/docs/extensions/snippets.html)
  - Developing Agent Servers: [Developing Agent Servers](/content/docs/extensions/agent-servers.html)
  - Developing MCP Servers: [Developing MCP Servers](/content/docs/extensions/mcp-extensions.html)

Zig: [Zig](/content/docs/languages/zig.html "Zig"/index.html) [Installing Extensions](/content/docs/extensions/installing-extensions.html "Installing Extensions"/index.html)