When input contains a CSV header or any other table header commonly found in process output, the skip filter may be of help.
<?php
use ZeroConfig\Cli\Reader\StandardIn;
use ZeroConfig\Cli\Transformer\Sequence\SkipFilter;
use ZeroConfig\Cli\Writer\File;
$input = new StandardIn();
$output = new File('records.csv');
$filter = new SkipFilter(1);
$output($filter($input));
See other available transformers.