/** What crtrd exposes to handlers that act on the daemon process itself. */
export interface DaemonControl {
    /** This daemon's epoch id. */
    epoch: string;
    /** Schedule the handover: this daemon answers now, then after a bounded
     *  grace tears its fleet down, releases its claim, spawns a successor on the
     *  currently selected runtime generation, and exits.
     *
     *  Returns the grace it will wait. Idempotent — a second request while one is
     *  already scheduled returns the same grace and schedules nothing new, so an
     *  agent that retries cannot stack handovers. */
    requestHandover(): {
        graceMs: number;
    };
}
/** Bind this process's control surface. Called once, by `runDaemon`. */
export declare function bindDaemonControl(control: DaemonControl): void;
/** Release the binding (cleanup, and test isolation). */
export declare function clearDaemonControl(): void;
/** The bound control surface, or null when this process is not a live daemon. */
export declare function boundDaemonControl(): DaemonControl | null;