Reference
Every command, flag, output format, and setting, plus a troubleshooting guide.
The complete surface, for when you know what you want and need the exact spelling: the CLI command tree and flags, configuration and environment, output formats, and troubleshooting.
CLI
Every command and subcommand, with the flags that matter.
Configuration
The global flags every command shares, and what they do.
Output formats
Text for reading, json for piping, and the exit code that carries the rest.
Troubleshooting
The handful of things that trip people up, and what each one actually means.