export type ExecResult = {
    stdout: string;
    stderr: string;
    code: number;
    killed: boolean;
    stdoutTruncated?: boolean;
};
export type ExecOptions = {
    cwd: string;
    signal?: AbortSignal;
    /** Omit for the default timeout; null disables elapsed-time expiry. */
    timeoutMs?: number | null;
    stdoutLimitBytes?: number;
    stdoutTailBytes?: number;
    stderrLimitBytes?: number;
    stdin?: string;
};
export type Exec = (command: string, args: string[], options: ExecOptions) => Promise<ExecResult>;
/** Run one argv-only child process with bounded streaming output and cancellation. */
export declare const spawnBounded: Exec;