A bot should always be able to carry 12 items. But a Discord user reports that under some circumstances, the bot acts as though its inventory is smaller:
In the beginning, it said, it has 5 slots and you can only use these 5. Than I let him harvest the jars. It makes it and said after that, it has 9 slots and you use every slot. I played around a bit. The next day I can also use 9 slots also when I closed the whole game and start it. When I take two items away from the bot and go to sleep, I still have 9 slots. But, when I take away two items, go to sleep, so the game saves, than close the game and start, I only have 7 slots. So it has something to do with the saves. It behaves differently whether you just play the next day or you load the game.
A bot should always be able to carry 12 items. But a Discord user reports that under some circumstances, the bot acts as though its inventory is smaller: