export interface LaunchRuntime {
    /** Launch argv with a PATH-resolved command, so the mounted executable is the one invoked. */
    argv: string[];
    /** Exact executable and package roots required by the launch, mounted read-only. */
    readPaths: string[];
}
export interface LaunchRuntimeOptions {
    path?: string;
    nodeExecutable?: string;
}
/**
 * Resolve the concrete runtime closure for an already-selected harness launch.
 * System roots are already present in every isolation policy; everything else
 * is returned as an exact read-only executable or npm package-root bind.
 */
export declare function resolveLaunchRuntime(argv: string[], options?: LaunchRuntimeOptions): LaunchRuntime;