import { type GroupXRuntimeIdentity } from "../core/runtime-instance.js";
export interface GroupXRuntimeLaunchDescriptor {
    readonly configPath: string;
    readonly host: "127.0.0.1";
    readonly port: number;
    readonly origin: string;
    readonly closeTimeoutMs: number;
    readonly identity: GroupXRuntimeIdentity;
}
export type GroupXRuntimeProbe = {
    readonly kind: "same";
    readonly identity: GroupXRuntimeIdentity;
} | {
    readonly kind: "different-config";
    readonly identity: GroupXRuntimeIdentity;
} | {
    readonly kind: "legacy-groupx";
} | {
    readonly kind: "incompatible-groupx";
} | {
    readonly kind: "occupied";
} | {
    readonly kind: "unreachable";
};
export interface GroupXRuntimeProbeOptions {
    readonly fetch?: typeof globalThis.fetch;
    readonly timeoutMs?: number;
}
export interface GroupXRuntimeShutdownOptions extends GroupXRuntimeProbeOptions {
}
export declare function describeGroupXRuntimeLaunch(configPath: string): Promise<GroupXRuntimeLaunchDescriptor>;
export declare function probeGroupXRuntime(descriptor: GroupXRuntimeLaunchDescriptor, options?: GroupXRuntimeProbeOptions): Promise<GroupXRuntimeProbe>;
/** Ask one already-identified local runtime to begin a graceful shutdown. */
export declare function requestGroupXRuntimeShutdown(descriptor: GroupXRuntimeLaunchDescriptor, runningIdentity: GroupXRuntimeIdentity, options?: GroupXRuntimeShutdownOptions): Promise<void>;
export declare function isAddressInUseError(error: unknown): boolean;
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