# GitHub Copilot app reference

Find reference information for slash commands and GitHub-provided built-in skills in the GitHub Copilot app.

## Links

* [Slash commands for the GitHub Copilot app](/en/copilot/reference/github-copilot-app-reference/slash-commands)

  Use slash commands in the GitHub Copilot app to switch modes, run common workflows, and manage sessions without writing a long prompt.

* [Built-in skills for the GitHub Copilot app](/en/copilot/reference/github-copilot-app-reference/built-in-skills)

  Use this reference to find built-in agent skills available in the GitHub Copilot app.