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cmux-settings

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View and edit cmux settings in ~/.config/cmux/cmux.json. Use when the user wants to change cmux preferences (appearance, sidebar, notifications, automation, browser, shortcuts), set a value by JSON path, validate the file, open it in an editor, or look up which keys cmux recognizes. Triggers on '/cmux-settings', 'change cmux setting', 'set <something> in cmux', 'cmux config', 'cmux.json', or 'rebind a cmux shortcut'.

ai_docs/cmux-skills/cmux-settings/SKILL.md

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Local scripts
Last checked
Nov 11, 2026

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116
Repository last updated
Jun 29, 2026
License
MIT

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# cmux-settings

cmux reads user settings from `~/.config/cmux/cmux.json` (JSONC). The app installs a file watcher; saving the file applies changes immediately, no restart needed. Legacy `~/.config/cmux/settings.json` is read only as a fallback for keys not present in `cmux.json`.

Schema: `https://raw.githubusercontent.com/manaflow-ai/cmux/main/web/data/cmux.schema.json`. The authoritative path list lives in `Sources/CmuxSettingsJSONPathSupport.swift` in the cmux checkout, and the installed skill includes a generated copy in `references/all-keys.md`. Top-level sections are `app`, `terminal`, `notifications`, `sidebar`, `sidebarAppearance`, `workspaceColors`, `automation`, `browser`, and `shortcuts`. Non-settings sections (`actions`, `ui`, `commands`, `vault`, `rightSidebar`) coexist in the same file.

## Helper script

Use the bundled helper for every read/write. It strips JSONC comments, writes atomically, and validates keys against the schema.

```bash
# From a cmux checkout
skills/cmux-settings/scripts/cmux-settings <subcommand>
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