/**
 * The runtime shell the web UI is rendering inside. Used as pass-through
 * feedback metadata so form owners can tell whether a submission came from the
 * Agent Native desktop app (Electron), a Tauri desktop shell (e.g. Clips), or a
 * plain browser — without surfacing it as a visible form field.
 */
export type ClientSurface = "web" | "electron" | "tauri";
/**
 * Best-effort, side-effect-free detection of the current client surface.
 * Returns "web" during SSR and in any plain browser.
 *
 * Electron detection keys off the `AgentNativeDesktop` User-Agent token that the
 * desktop shell appends app-wide (see `app.userAgentFallback`), plus the preload
 * globals, so it stays specific to our app rather than every Electron webview.
 */
export declare function getClientSurface(): ClientSurface;
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