A great interface to Jira (one can dream) would be a few folders representing backlog, sprint and maybe some other views.
Each task is a yaml file and hooked up to your text editor is a language server that can talk to Jira and do autocomplete against @username, Jira ticket ids, etc.
Sync on save.
I’m sure there’ll be all sorts of problems I haven’t forseen, but one can dream of editing task as quickly as editing your personal markdown notes.
I think https://github.com/ahungry/org-jira gets you pretty close to what you want, if you're open to using emacs + org-mode.