Organization custom instructions for GitHub Copilot, first introduced in April 2025, are now generally available.

With organization custom instructions, Copilot Business and Copilot Enterprise organization administrators can set default instructions that guide Copilot’s behavior across all repositories in their organization.

Organization custom instructions are applied across:

  • Copilot Chat on github.com
  • Copilot code review
  • Copilot cloud agent

To add custom instructions, navigate to your organization’s settings, select Copilot, then click Custom instructions.

To learn more, see “Adding organization custom instructions for GitHub Copilot” in the documentation.