Shape cmux around how you work.
terminal customization
Customize cmux configuration and validate the resulting actions, layouts, controls, and preferences.
When to use it
Use when changing cmux actions, commands, layouts, plus-button behavior, tab-bar buttons, settings, shortcuts, notifications, browser routing, presets, or Ghostty-backed preferences.
Give it a cmux customization request; it edits the appropriate configuration, reloads cmux, and verifies the configured entrypoint.
What you provide
This skill
~/.config/cmux/cmux.json and .cmux/cmux.json
Reads cmux configuration
cmux configuration files
Backs up and edits config
cmux-settings
The settings helper
cmux
Reloads cmux configuration
The cmux CLI must be available for reloading configuration and, when applicable, workspace or feed operations.
The cmux-settings helper is required for app settings and cmux-owned shortcuts.