How exactly does Sublime's autosave trigger - how often and does it have any special behavior like a some delay after the user has finished typing?
what auto save are you talking about? the session, whereby if you close ST and reopen it (or ST crashes), it will remember the contents of the buffers? (aka hot_exit)
That's the one.
There's also save_on_focus_lost which saves when you change which window is active.