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GitHub Copilot ​

GitHub Copilot for VS Code supports custom Bring-Your-Own-Key model endpoints in Copilot Chat. You can point Copilot at Corveil for unified logging, budgets, and guardrails on Copilot traffic.

Prerequisites ​

  • VS Code with the GitHub Copilot and Copilot Chat extensions installed
  • A Copilot subscription on a plan that allows custom model endpoints
  • A Corveil virtual API key (sk-citadel-...)

Mode ​

Direct mode only. Copilot Chat treats Corveil as a generic OpenAI-compatible provider.

1. Add a custom model in VS Code ​

Open the command palette (Cmd+Shift+P / Ctrl+Shift+P) and run "GitHub Copilot: Manage Models > OpenAI Compatible". Provide:

  • Base URL: https://your-corveil-host/v1
  • API key: sk-citadel-your-key-here
  • Model ID: any model exposed by your Corveil instance (e.g. or-gpt-5.1)

2. Select the Corveil model ​

In the Copilot Chat picker, choose the model you just added. All chat completions for that model will route through Corveil.

Caveats ​

  • Inline completions ("ghost text") may continue to use GitHub's hosted backend — only chat is reliably routable today
  • Copilot's custom model UI is evolving; the menu name may differ between VS Code versions