cmux Localization

Use this skill for any user-facing string change.

Hard rules

• Every user-facing string is localized. Never a bare string literal in SwiftUI Text(), Button(), alert titles, tooltips, menus, or dialogs.
• Swift/AppKit/SwiftUI: String(localized: "key.name", defaultValue: "English text"), with keys in Resources/Localizable.xcstrings. Feature PRs add the key and English source value; translations for every supported language are completed in the release PR.
• defaultValue, English fallback text, schema descriptions, and copied English strings do not count as localization. They are acceptable in feature PRs only when the release workflow tracks the key for translation.
• Localized web/docs content updates every supported message catalog (currently web/messages/en.json and web/messages/ja.json) plus any localized data structures carrying inline translations.
• A localization audit is required for every user-facing change.

Audit checklist

Before finishing a task that changes UI, Settings rows, menus, shortcut metadata, schema/config text, docs, command/help text, alerts, or tooltips: