Feedback on commands:

> jt note newnote

> jt folder newfolder

I have to type "note" or "folder" twice, just to create a new one. I prefer the convention that most other tools follow whereby "new" is the base command, and then the thing you want to create is the noun. Eg

> jt new note

If you really want the noun to be first and the verb second, at least simplify it to:

> jt note new

Though I much prefer the verb first since it reads more like an action sentence.