GitHub Copilot Chat Cheat Sheet

Slash Commands Use slash commands to avoid writing complex prompts for common scenarios. To use a slash command, type / in the chat prompt box, followed by the command name. Command Description /clear Start a new chat session. /explain Explain how the code in your active editor works. /fix Propose a fix for problems in the selected code. /fixTestFailure Find and fix a failing test. /help Quick reference and basics of using GitHub Copilot. /new Create a new project. /tests Generate unit tests for the selected code. Chat Variables Use chat variables to include specific context in your prompt. To use a chat variable, type # in the chat prompt box, followed by a chat variable. Variable Description #block Includes the current block of code in the prompt. #class Includes the current class in the prompt. #comment Includes the current comment in the prompt. #file Includes the current file's content in the prompt. #function Includes the current function or method in the prompt. #line Includes the current line of code in the prompt. #path Includes the file path in the prompt. #project Includes the project context in the prompt. #selection Includes the currently selected text in the prompt. #sym Includes the current symbol in the prompt. Chat Participants Chat participants are like domain experts who have a specialty that they can help you with. You can specify a chat participant by typing @ in the chat prompt box, followed by a chat participant name. To see all available chat participants, type @ in the chat prompt box. Below is a list of some of the most common chat participants for using Copilot Chat. Variable Description @azure Has context about Azure services and how to use, deploy and manage them. Use @azure when you want help with Azure. The @azure chat participant is currently in public preview and is subject to change. @github Allows you to use GitHub-specific Copilot skills. See Asking GitHub Copilot questions in your IDE. @terminal Has context about the Visual Studio Code terminal shell and its contents. Use @terminal when you want help creating or debugging terminal commands. @vscode Has context about Visual Studio Code commands and features. Use @vscode when you want help with Visual Studio Code. @workspace Has context about the code in your workspace. Use @workspace when you want Copilot to consider the structure of your project, how different parts of your code interact, or design patterns in your project. Reference: https://docs.github.com/en/copilot/using-github-copilot/copilot-chat/github-copilot-chat-cheat-sheet?tool=vscode

Feb 22, 2025 - 02:13

Slash Commands

Use slash commands to avoid writing complex prompts for common scenarios. To use a slash command, type / in the chat prompt box, followed by the command name.

Command	Description
/clear	Start a new chat session.
/explain	Explain how the code in your active editor works.
/fix	Propose a fix for problems in the selected code.
/fixTestFailure	Find and fix a failing test.
/help	Quick reference and basics of using GitHub Copilot.
/new	Create a new project.
/tests	Generate unit tests for the selected code.

Chat Variables

Use chat variables to include specific context in your prompt. To use a chat variable, type # in the chat prompt box, followed by a chat variable.

Variable	Description
#block	Includes the current block of code in the prompt.
#class	Includes the current class in the prompt.
#comment	Includes the current comment in the prompt.
#file	Includes the current file's content in the prompt.
#function	Includes the current function or method in the prompt.
#line	Includes the current line of code in the prompt.
#path	Includes the file path in the prompt.
#project	Includes the project context in the prompt.
#selection	Includes the currently selected text in the prompt.
#sym	Includes the current symbol in the prompt.

Chat Participants

Chat participants are like domain experts who have a specialty that they can help you with. You can specify a chat participant by typing @ in the chat prompt box, followed by a chat participant name. To see all available chat participants, type @ in the chat prompt box.

Below is a list of some of the most common chat participants for using Copilot Chat.

Variable	Description
@azure	Has context about Azure services and how to use, deploy and manage them. Use @azure when you want help with Azure. The @azure chat participant is currently in public preview and is subject to change.
@github	Allows you to use GitHub-specific Copilot skills. See Asking GitHub Copilot questions in your IDE.
@terminal	Has context about the Visual Studio Code terminal shell and its contents. Use @terminal when you want help creating or debugging terminal commands.
@vscode	Has context about Visual Studio Code commands and features. Use @vscode when you want help with Visual Studio Code.
@workspace	Has context about the code in your workspace. Use @workspace when you want Copilot to consider the structure of your project, how different parts of your code interact, or design patterns in your project.

Reference: https://docs.github.com/en/copilot/using-github-copilot/copilot-chat/github-copilot-chat-cheat-sheet?tool=vscode