Auto generate meta data value in post

Saving this data persistently seems like excessive approach. Since there is no human input (only logic), there is no benefit to storing results – just keep the logic. More so if logic changes next week you won’t need to re-save everything.

Basically I would instead during output check is post has value and if not apply the one generated automatically. I don’t have that plugin on hand to advise on specific point in code, but I would assume it should allow programmatic access to that in some form.