Through quirks in the program I have had files get deleted. I just almost unwittingly deleted all the contenct of a notebook - not by deleting the notebook itself, but by deleting a single note.
If I hadn’t noticed soon after and had been able to undo the last few steps I would have lost all those notes for good. That scares me a lot about Agenda.
You definitely need a trash container for Agenda where all deleted notes go first, and that can easily be restored. I feel like this should go to the top of the list. Otherwise, it’s a ticking time bomb and you’ll probably have some really pissed off customers, sooner rather than later. That would be ashame because it’s an amazing app.