Documentation

GitHub Copilot

Configure Milkey for GitHub Copilot in IDE-based Agent mode or Copilot CLI.

GitHub Copilot now supports MCP across IDE and CLI surfaces, but the config shape differs depending on where you use Copilot.

Use the IDE format when you are configuring Copilot Chat in Agent mode. Use the CLI format when you want Milkey available from GitHub Copilot CLI sessions.

Configure GitHub Copilot

The client-specific work here is mostly about where the config lives and which field names the client expects.

For Copilot Chat in VS Code, Visual Studio, JetBrains, or Xcode, edit the relevant `mcp.json` file from the Copilot MCP UI.
For Copilot CLI, edit `~/.copilot/mcp-config.json` or use the built-in `/mcp add` flow in interactive mode.

1{2  "servers": {3    "milkey": {4      "url": "https://mcp.vexelityai.com/mcp",5      "requestInit": {6        "headers": {7          "Authorization": "Bearer mk_sk_your_api_key_id_your_secret"8        }9      }10    }11  }12}

1{2  "mcpServers": {3    "milkey": {4      "type": "http",5      "url": "https://mcp.vexelityai.com/mcp",6      "headers": {7        "Authorization": "Bearer mk_sk_your_api_key_id_your_secret"8      },9      "tools": ["*"]10    }11  }12}

Copilot IDEs

mcp.json

Copilot CLI

~/.copilot/mcp-config.json

Authorization

Copilot IDE integrations generally attach headers under `requestInit.headers`, while Copilot CLI stores headers directly on the HTTP MCP server entry. The Milkey token value itself stays the same.

Shared auth model

Every MCP client page uses the same Milkey auth contract: Authorization: Bearer <api_key>. Keep the setup snippet on this page for copy-paste speed, then use the dedicated Authorization and API Keys pages for storage, rotation, and error handling rules.

Verify the connection

In Copilot Chat, switch to Agent mode and confirm Milkey appears in the tools list after the server starts.
In Copilot CLI, run `/mcp show` to confirm the server exists and is enabled.
Ask for a specific Milkey-driven task so you can verify tools are actually being used.

Test prompt

1Use Milkey to find the best skill for API pagination design in this repository and summarize the recommendations before changing code.

Operational tips

If your organization manages Copilot MCP policies, make sure external MCP servers are allowed before debugging the Milkey config.
Use one key per environment so IDE and CLI access can be rotated independently.