Settings ownerless-copy and product-onboarding plugin: registers everything on the Settings surface that belongs to no single feature — the shell's trigger/header/close chrome content, the General section (Permission/Tool Call skeleton rows + the settings.general.item slot declaration), the settings dictionaries, and the first ordered welcome step. Feature-owned rows (Language, Appearance), sections (Models), and conditional onboarding steps stay with their feature packages.

src/onboarding-copy.ts is the single editable owner of the complete Chinese and English notice plus WELCOME_NOTICE_VERSION. The Host half registers ui-onboarding in the user-settings seam; the browser compares welcomeNoticeVersion for exact equality and writes the current value only after Continue succeeds. The path mutation is idempotent across tabs and preserves sibling settings, while host/settings-changed makes an externally acknowledged notice advance without a reload. A different version deliberately presents the notice again. The welcome page preserves every authored paragraph, gives the requested clause in the final paragraph the sole emphasis, initially focuses the title, and has no close, Escape, mask-click, or secondary path. None of its copy or acknowledgement enters a Session log or model request.

Model Experience

None, as the plugin renders browser settings UI; nothing here reaches a model request.

KV Cache effect

None; this package neither assembles nor sends a provider request.

Known Limitations and Deferred Work

Permission and Tool Call are display skeletons — the backing host services and RPC methods do not exist yet; the controls are disabled and write nothing. When they gain real backing, each moves to its owning feature plugin per the self-registration doctrine.