PocketAI had its AI (jumping on land, swimming in water, but not attacking players / squids) coded into it, but its removed because its under recoding & optimisation, but i could put just guardians into an external plugin if you'd like.. here is a video how they behave, tell me if that behaviour is ok to you:
And you with writing useless comments like these? Atleast i try to help unanswered/incomplete threads