/**
 * The current app's default agent model (browser).
 *
 * Named client helper for `/_agent-native/agent-model-defaults`, the setting
 * behind `agent-app-model-default:<appId>`. The agent changes the same value
 * with `manage-agent-engine` (`get-app-default`, `set-app-default`,
 * `reset-app-default`); UI code calls these instead of hand-writing a fetch.
 */
export interface AppModelDefaultEngine {
    name: string;
    label: string;
    defaultModel: string;
    /** The models the picker offers, after the provider's model selection. */
    supportedModels: string[];
    packageInstalled?: boolean;
    configured: boolean;
}
export interface AppModelDefaultSelection {
    engine: string;
    model: string;
}
export interface AppModelDefaultState {
    appId: string;
    /** The app's own default; both `null` when it uses the organization's. */
    engine: string | null;
    model: string | null;
    source: "org" | "user" | "default";
    /** Owners and admins, or a signed-in user with no organization. */
    canUpdate: boolean;
    orgName?: string | null;
    /**
     * The organization's default model, which applies while the app sets none.
     * `null` when nobody chose one; absent from servers that don't report it.
     */
    orgDefault?: {
        engine: string;
        model: string | null;
    } | null;
    engines: AppModelDefaultEngine[];
}
export declare function fetchAppModelDefault(): Promise<AppModelDefaultState>;
/** Owners and admins only; the server answers 403 for everyone else. */
export declare function saveAppModelDefault(selection: AppModelDefaultSelection): Promise<AppModelDefaultState>;
/** Clear the app's own default so it uses the organization's again. */
export declare function resetAppModelDefault(): Promise<AppModelDefaultState>;