From my knowledge, He sends them a rough script of the plot and they fill in the blanks, Kind of like they do in Naruto/Bleach anime episodes and so on.
Problem is there is no official cannon so we cannot compared intended feats to feats added by the animators to increase run time on the episode.
Oh i see.
About the official canon, technically, Super anime is canon while what happens in the manga is an adaptation made by Toyotaro. So technically, Toriyama's script + Toei's filler = Canon
I would move Super to Madhouse. Just look at HXH or Paratise. Those animations are orgasmic. While Toei is now the joke of animators.
I heard he got pissed off with the DBS animation.