export interface LocalRuntime {
    pid: number;
    port: number;
    baseUrl: string;
    startedAt: string;
    version: string;
}
export interface RuntimeLockOptions {
    cwd?: string;
    env?: Record<string, string | undefined>;
    lockPath?: string;
    platform?: NodeJS.Platform;
}
export interface RuntimeHealthCheckOptions {
    fetchImpl?: typeof fetch;
    timeoutMs?: number;
}
export declare function isLoopbackHost(host: string): boolean;
export declare function assertLoopbackHost(host: string): void;
export declare function resolveRuntimeLockPath(options?: RuntimeLockOptions): string;
export declare function readRuntimeLock(options?: RuntimeLockOptions): Promise<LocalRuntime | null>;
export declare function writeRuntimeLock(runtime: LocalRuntime, options?: RuntimeLockOptions): Promise<string>;
export declare function removeRuntimeLock(options?: RuntimeLockOptions): Promise<void>;
export declare function findRuntime(options?: RuntimeLockOptions): Promise<LocalRuntime | null>;
export declare function assertRuntimeHealthy(runtime: LocalRuntime, options?: RuntimeHealthCheckOptions): Promise<boolean>;
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