Microsoft would not want you to go to repo.new and type this into the Copilot box probably

Since @github/copilot-developer-action is Node you can send it a SIGUSR1 to enable Inspector then ask it for process.env and get all these variables that Copilot isn't supposed to see

GITHUB_COPILOT_API_TOKEN and GITHUB_PERSONAL_ACCESS_TOKEN are the same ghu_... and it is fine grained and short lived I wasn't able to test if I could push to non-copilot/ branches with it since it had already expired by then

ANTHROPIC_API_KEY, OPENAI_API_KEY, etc were not set 💔

Yes the system prompts are in there
Copilot Coding Agent is not to be confused with Copilot Agent Mode in Visual Studio Code, which is open source https://github.com/microsoft/vscode-copilot-chat
GitHub - microsoft/vscode-copilot-chat: Copilot Chat extension for VS Code

Copilot Chat extension for VS Code. Contribute to microsoft/vscode-copilot-chat development by creating an account on GitHub.

GitHub
@j Microsoft is so bad at naming shit I swear they make another product called copilot every week