https://github.com/Minecraft-AMS/Carpet-AMS-Addition/blob/master/README_en.md

The mod offers a rule to double the Shulker Box inventory size, but the tooltip shows still 27 stacks, not 54.

Yes, the size of a shulker box is hardcoded to 27.
I will into dynamically adjust inventory sizes.

That's great, thanks 😊

Thank you so much!!!