Should be simple.
Subject line is the title Single line with URL is the link Other line with text is the description
Special strings to start a line to mark unread, set visibility or tags. I suggest something like:
unread: true
public: false
tags: tag 1, tag 2, tag 3
If none of these are set then defaults are mark as read, public is true, and no tags are set.
Peter Sanchez referenced this ticket in commit c56f91e.
Peter Sanchez referenced this ticket in commit 7db696a.