Customizing Copilot

You can add additional functionality to Copilot in your organization, by installing certain GitHub Apps from GitHub Marketplace.

You can create a file in a repository that automatically adds information to all questions you ask Copilot Chat.

You can add personal instructions for GitHub Copilot Chat to customize chat responses for your conversations.

Organization owners can create a knowledge base bringing together Markdown documentation across one or more repositories, and then organization members can use that knowledge base as context for Copilot Chat in GitHub.

You can fine-tune Copilot code completion by creating a custom model based on code in your organization's repositories.