I would like to automatically have the results of a double prefixed call to `org-time-stamp-inactive` inserted as the body of new TODO entries.
Have you tried including %U in your template? See "Template expansion"
in the Org Mode documentation:
("t" "Full task capture" entry (file+headline "~/org/tasks.org"
"INBOX") "* TODO %?\n%iAdded: %U")
https://five.sentenc.es
Heads up, the ssl on https://five.sentenc.es/ is broken.
