import { type DeviceIdentity } from "./device-identity.js";
/**
 * Why preview sync is currently inoperative, for the capture status surface
 * (`capture.status` → sources). Kicks the lazy sharp probe when it has not run
 * yet, so status converges even before the first preview is enqueued.
 */
export declare function graphPreviewsDisabledReason(): "sharp-unavailable" | undefined;
export declare function enqueueGraphPreview(options: {
    versionId: string;
    sourcePath: string;
    occurredAt?: string;
    directory?: string;
    identity?: DeviceIdentity;
}): Promise<void>;
/** Serialize expensive native preview generation so a save burst stays bounded. */
export declare function scheduleGraphPreview(options: Parameters<typeof enqueueGraphPreview>[0]): void;
export declare function flushGraphPreviewOutbox(options: {
    platformUrl: string;
    koiId: string;
    gatewayToken: string;
    directory?: string;
    identity?: DeviceIdentity;
    fetchImpl?: typeof fetch;
}): Promise<{
    sent: number;
    remaining: number;
}>;
export declare function graphPreviewOutboxSize(override?: string): number;