Hi Rob

I think 'conditional' is the ideal word for it. So it's either mandatory, optional or conditional. 

Cheers
Denis

On Tue, 30 Sept 2025, 14:57 Rob Evans, <rhe@nosc.ja.net> wrote:
Hi,

Just picking the item that is easiest to bike shed...

> So unless someone has a better suggestion for naming this attribute property, I recommend that we adopt 'variable' in the documentation and in the templates returned by a whois query with -t and -v.

It sounds to me like these attributes are ‘conditionally mandatory’, or perhaps just ‘conditional’.

Rob