Interesting approach to templates. But I think I’d prefer actual templates within Agenda - not least becuase they’ll be easier to edit. A menu option when you right click the + sign for example? And a folder in the left hand sidebar with templates in it - essentially just notes you can’t accidentally overwrite.
Also, I’m reluctant to sign up for an annual subscription to TextExpander to get this functionality. I’m also trying to make the most of native apps, and the Text Shortcuts in MacOS does 95% perhaps of what I want, and I can live without the other 5%!