Our recommendation: choose the least complicated option that does what you want.
Kodi can, without any add-ons, re-scan your library every time it starts up.
The downside: this can take up a lot of system resources, and is occasionally unstable.
You can tweak things quite a bit, however, so head to the add-on’s settings and get familiar.
Scheduled updates are nice, but if you add media files constantly, they not enough.
This is particularly true if you’ve got some sort of automated system set up for recording or downloading new TV episodes, and you want to watch them right when they’re available.
If you are playing an audio or video file when the timer starts it can skip the library update process until it is completed so that you're media experience is not interrupted.
Updating a specific Video Path, and Cleaning the Music/Video libraries is now supported Addons or Addons Super Repo does not maintain XBMC Library Auto Update.
We are not affiliated with the developers (robweber) and do not provide help for this particular addon.
Enable the “Clean Libraries” option to regularly remove all references to any deleted files from your library.
This will take a bit of time, so only enable this if you really do delete media files with some frequency.
Scroll down to the bottom and you’ll find Watchdog.
Install it and you’re pretty much done: Kodi will start adding new files to the library basically as soon as you put them in a source folder.