I’m using the entry_submission_ready hook which looks like this:

public function entry_submission_ready($meta, $data, $autosave)
    {
        $this->EE->publisher_lib->is_new_entry = ($data['entry_id'] == 0) ? TRUE : FALSE;
    }

So you might be able to use entry_submission_start/end and reference that property to tell if its a brand new entry.

Correct, it’ll be false. You can use $this->EE->input->post(‘save_status’) and entry_id, and query the publisher_titles table or you can try to use these methods, both accessible from $this->EE->publisher_entry-> http://pastie.org/6012398

This sounds like a good candiate for a hook in Publisher.

Well, if you’ve created a draft and it hasn’t been saved as open/published yet, then there won’t be a record in the publisher_titles table for the entry_id and status of ‘open’, so:

select from publisher_titles where entry_id = ‘123’ and status = ‘open’ - send notification if a row comes back, if no row comes back then its been saved as draft only.

You’d have to compare the dates, create your own table, or add a column to the publisher_titles table to store which entries have had notifications already sent for.