Read arguments from standard input and execute a command with bounded batches.Supports -0/--null, -n N/--max-args=N, -r/--no-run-if-empty, and-t/--verbose. Input size is controlled by the calling harness and isparsed into argv entries; there is no shell evaluation. Each child argv batchis kept below a conservative 64 KiB operating-system limit. Since itstarts child processes, it is not in the default policy allow-list.