Yeah about this stealth eye.
I can't do it with sneak 6+ghost* and a 1/1/1** cloaking device. I am not going to say it is impossible, but it sure seems like there's no clear path. With sneak 6+prowler I think it might be doable without the cloaking device, since with those high levels you can sit under any camera with impunity, and some of the tiles directly to the side of the camera are yellow, which lets you manoeuvre under the camera while it is perpendicular to the wall. I don't have the patience to try and work it out, and realistically everyone will have a stealth field anyway. Pretty sure it's also possible with sneak6+runner, since then you can get infinite value from your cloaking device, but I haven't tested.
It also feels like there's insufficient feedback, since the cameras seem entirely binary, either they see you or they don't, with no different states like normal enemies. Is there even a functional difference between yellow, green and safe tiles?
As another part of stealth feedback, I'm not a huge fan of the fact that enemies can be takedownable or no depending solely on if they are facing diagonally or not (by putting their back to a diagonal tile, an enemy can effectively block being stabbed from their only blindspot, as all adjacent tiles will now have vision.
What does the datajack with a "hardware encryption key" that you find in one of the tombs do? It doesn't show up in inventory.
*Ghost probably doesn't help at all.
** could be a 1/1/2 cloaking device, but the cloaking device loses effectiveness so rapdily each turn I don't think it would matter to have it active for one more turn.