Edits cmux's JSONC config file at ~/.config/cmux/cmux.json without making you open an editor or worry about breaking syntax. The bundled helper script handles everything: get/set by JSON path, validate unknown keys, strip comments, atomic writes. Changes apply immediately thanks to the file watcher, no restart. Covers appearance, sidebar tint and details, notifications, browser defaults, automation socket modes, and shortcut rebinding. The main workflow is lookup (list-supported or grep references/all-keys.md), set the dotted path, validate, done. Honest take: this is exactly the kind of plumbing you want when an app stores preferences in JSON and you'd rather script changes than click through menus or hand-edit and hope you didn't typo a key name.
npx skills add https://github.com/manaflow-ai/cmux --skill cmux-settings