sorted

This directive will stop the spreadsheet execution if the values in the specified column are not sorted.

pebblestream:sorted[:(asc|desc)][:<number>]

The runtime will throw an exception if this column is not sorted, ascending by default. If multiple are placed in the same sheet, the columns will be considered multiple keys for the same sorted check, and they should each have a number to indicate their order for breaking ties (lower = earlier).

Example