SCP Foundation

I was thinking of a spider, the size of a tarantula, that has a human eye pattern/design on its abdomen. Upon seeing the eye, the organism will enter a state described as hypnotized. During the trance, the organism does things that will only benefit the spider (finding food, moving it around, sheltering, protecting, etc) After the spider is done with the organism, it will stop controlling it and the organism will enter a state of unconsciousness for a few hours.

I was thinking that the Containment method could (partly) be a terrarium with reinforced glass and a 3d printed "shell" fitted to the abdomen to cover the eye.

I would add more information like a description and as if some tests were made to the spider.

Right now, the hypnotic eye just hypnotizing people out of nowhere feels disjointed and disconnected. It strips all potential characters of their character and makes the plot predictable, because the story always ends with the spider being fed. If you could come up with some way that the eye pattern naturally evolved or talk about how it exploits patterns in mammalian thinking or find out a way to connect the hypnotic eye to real animals and evolution, then you could have a promising monster. The reader would be invested in the journey of how a spider managed to develop hypnotic powers, and you'd be able to develop an otherwise boring concept into an interesting trek through spider genealogy.