On 2023-11-08 13:34, Bart Schaefer wrote: > Purely theoretically, is this the sort of thing where a hook might be > used? > Not really. Hooks are typically for things driven from the C code, > where an escape to shell control extends the default behavior, whereas > _arguments is entirely shell code Thanks.  No way of getting one's hands on _arguments then in the way I was speculating.