export interface ExecResult {
    code: number | null;
    stdout: string;
    stderr: string;
    timedOut: boolean;
}
/** Keep only the last `max` characters of a string. */
export declare function tail(text: string, max?: number): string;
/**
 * Run `command` in `cwd` via a shell, capturing stdout/stderr. On Windows we
 * use `shell: true` so npm scripts / .cmd shims resolve. Resolves (never
 * rejects) with the exit code and captured output; kills the process on timeout.
 */
export declare function runCommand(command: string, cwd: string, timeoutMs?: number): Promise<ExecResult>;