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AI / GitHub Copilot CLI Fundamentals Interview Questions

What is the full list of GitHub Copilot CLI command-line flags and their purposes?

Understanding the complete flag set allows you to use Copilot CLI effectively in both interactive and scripted contexts. Flags are passed at launch to configure the session or a single non-interactive call.

GitHub Copilot CLI flags reference
FlagDescription
--versionPrint the installed version and exit
-p, --prompt Run a single non-interactive prompt and exit
-s, --silentSuppress extra output - print only Copilot's response (use with -p)
--model Specify the AI model to use (or 'auto' for automatic selection)
--experimentalEnable experimental/preview features
--no-experimentalDisable experimental features (override persisted setting)
--remoteEnable remote control - monitor and interact from GitHub.com/Mobile
--no-remoteDisable remote control for this session
--remote-exportShare output remotely without full session control
--no-remote-exportDisable remote export
--resume Resume a specific previous or remote task by ID
--connectConnect to an existing remote session
--delegate Delegate a task for autonomous execution
--log-level Set logging verbosity (debug, info, warn, error)
--log-file Write log output to the specified file
-h, --helpShow help and all available flags
# Common flag combinations:

# Run a quick question non-interactively
copilot -p "What is the difference between let and const in JS?" -s

# Start a session with a specific model
copilot --model gpt-4o

# Delegate a task with remote monitoring
copilot --delegate "Add pagination to /api/users" --remote

# Resume a task from the command line
copilot --resume task-abc123

# Debug a failing session
copilot --log-level debug --log-file ./debug.log

Which flag suppresses additional output and prints only Copilot's response, making it suitable for use in shell scripts?
What does the --resume flag allow you to do in GitHub Copilot CLI?

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What is GitHub Copilot CLI and how does it differ from the deprecated gh copilot extension? What are the prerequisites for installing GitHub Copilot CLI? How do you install GitHub Copilot CLI? How do you authenticate GitHub Copilot CLI and what token types are supported? What is the directory trust model in GitHub Copilot CLI and why does it exist? How do you start an interactive Copilot CLI session and what are the two main usage modes? What are slash commands in GitHub Copilot CLI and what are the most important ones? What are the operating modes in GitHub Copilot CLI and how do you switch between them? What is the copilot-instructions.md file and how does it affect Copilot CLI behaviour? How does model selection work in GitHub Copilot CLI? What is the /pr slash command in GitHub Copilot CLI and what can it do? What is the /fleet slash command and what problem does it solve? What is remote control in GitHub Copilot CLI and how does it work? What are Copilot CLI hooks and what can they be used for? What is the AGENTS.md file and how does it differ from copilot-instructions.md? What is the /chronicle slash command and what session history features does it provide? What is MCP (Model Context Protocol) support in Copilot CLI and how do you use it? What is the COPILOT_HOME environment variable and where does Copilot CLI store its config? What are experimental features in Copilot CLI and how do you enable them? What is AI Credits billing in GitHub Copilot CLI and how does it work? How does Copilot CLI read and understand repository context? What are the keyboard shortcuts available in an interactive Copilot CLI session? What is the difference between GitHub Copilot CLI and Copilot in VS Code? What is GitHub Copilot Workspace and how does it differ from Copilot CLI? What are common Copilot CLI troubleshooting steps and how do you debug issues? How does Copilot CLI differ between Copilot Individual, Business, and Enterprise plans? How do you use Copilot CLI effectively with private repositories? What are best practices for writing effective prompts in GitHub Copilot CLI? How can you use GitHub Copilot CLI in CI/CD pipelines and automation workflows? What security considerations should developers be aware of when using GitHub Copilot CLI? What is the --delegate flag and how does the /delegate slash command work? What logging and diagnostic capabilities does GitHub Copilot CLI provide? What does GitHub Copilot CLI's diff and undo capability provide? What are the Windows-specific considerations for GitHub Copilot CLI? What is the full list of GitHub Copilot CLI command-line flags and their purposes? How does GitHub Copilot CLI integrate with GitHub issues? What are the key differences when using Copilot CLI on macOS vs Linux? What is the overall workflow for using Copilot CLI on a real development task from start to finish?
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