Adding VS Code to clients (#274)

Author: digitarald

clients.mdx

@@ -30,6 +30,7 @@ This page provides an overview of applications that support the Model Context Pr
 | [Sourcegraph Cody][Cody]                    | ✅          | ❌        | ❌      | ❌         | ❌    | Supports resources through OpenCTX                                          |
 | [Superinterface][Superinterface]            | ❌          | ❌        | ✅      | ❌         | ❌    | Supports tools                                                              |
 | [TheiaAI/TheiaIDE][TheiaAI/TheiaIDE]        | ❌          | ❌        | ✅      | ❌         | ❌    | Supports tools for Agents in Theia AI and the AI-powered Theia IDE          |
+| [VS Code GitHub Copilot][VS Code]           | ❌          | ❌        | ✅      | ❌         | ❌    | Supports tools, roots, dynamic discovery, secure secret configuration, and one-click installation |
 | [Windsurf Editor][Windsurf]                 | ❌          | ❌        | ✅      | ❌         | ❌    | Supports tools with AI Flow for collaborative development.                  |
 | [Witsy][Witsy]                              | ❌          | ❌        | ✅      | ❌         | ❌    | Supports tools in Witsy.                                                    |
 | [Zed][Zed]                                  | ❌          | ✅        | ❌      | ❌         | ❌    | Prompts appear as slash commands                                            |
@@ -72,6 +73,7 @@ This page provides an overview of applications that support the Model Context Pr
 [Tools]: https://modelcontextprotocol.io/docs/concepts/tools
 [Sampling]: https://modelcontextprotocol.io/docs/concepts/sampling
 [Microsoft Copilot Studio]: https://learn.microsoft.com/en-us/microsoft-copilot-studio/agent-extend-action-mcp
+[VS Code]: https://code.visualstudio.com/
 
 ## Client details
 
@@ -260,6 +262,16 @@ Theia AI and Theia IDE's MCP integration provide users with flexibility, making
 - [Theia IDE and Theia AI MCP Announcement](https://eclipsesource.com/blogs/2024/12/19/theia-ide-and-theia-ai-support-mcp/)
 - [Download the AI-powered Theia IDE](https://theia-ide.org/)
 
+### VS Code GitHub Copilot
+[VS Code](https://code.visualstudio.com/) integrates MCP with GitHub Copilot through [agent mode](https://code.visualstudio.com/docs/copilot/chat/chat-agent-mode), allowing direct interaction with MCP-provided tools within your agentic coding workflow. Configure servers in Claude Desktop, workspace or user settings, with guided MCP installation and secure handling of keys in input variables to avoid leaking hard-coded keys.
+
+**Key features:**
+- Support for stdio and server-sent events (SSE) transport
+- Per-session selection of tools per agent session for optimal performance
+- Easy server debugging with restart commands and output logging
+- Tool calls with editable inputs and always-allow toggle
+- Integration with existing VS Code extension system to register MCP servers from extensions
+
 ### Windsurf Editor
 [Windsurf Editor](https://codeium.com/windsurf) is an agentic IDE that combines AI assistance with developer workflows. It features an innovative AI Flow system that enables both collaborative and independent AI interactions while maintaining developer control.