$ claude -h
Usage: claude [options] [command] [prompt]
Claude Code - starts an interactive session by default, use -p/--print for non-interactive output
$ gemini -h
Usage: gemini [options] [command]
Gemini CLI - Defaults to interactive mode. Use -p/--prompt for non-interactive (headless) mode.
$ copilot -h
Usage: copilot [options] [command]
GitHub Copilot CLI - An AI-powered coding assistant.
Start an interactive session to chat with Copilot, or use -p/--prompt for non-interactive scripting.