Hi, DStecks here. I haven't been here long, so giving writing advice feels a little presumptuous, but I think I've hit an idea I'd like to share, and if you think I'm completely out in left field, please call me out on it.
It's an idea I call, for lack of a better term, "Outline Shading", and for all the people wondering "how do I imply something?" this is one way ideally suited to the SCP writing style. First, though, I want you to look at this picture, and tell me what it is:
If you said "a triangle", you're wrong. It's three dots, but your brain processes it as a triangle. Outline Shading is the literary equivalent of the above picture.
Implimenting it is fairly simple. Let's say your SCP is some kind of monster, and for whatever reason you don't want to explicitly describe its abilities. This is a good way to develop tension in the Containment Procedures. Instead of saying, for example, "It kills you in the dark" you could describe the vast, redundant lighting array pointed at it. To put it in simple terms, if you don't want to describe something, describe the Foundation's countermeasure for it. A nuclear weapon as part of an items's containment system clearly demonstrates the stakes of the item escaping (IMPORTANT NOTE: I am not encouraging the use of nuclear weapons in containment systems. While sometimes effective, it is a very cheap means of selling your SCP, and your SCP will likely be looked down upon as a result. Be creative.)
This is why SCP-231 works, on two levels. The kind of personnel needed to carry out Procedure 110-Montauk implies that it's phenominally horrible; and the horror of Procedure 110-Montauk implies the incredible horror of the thing inside 231-7, through the idea that however horrible performing 110-Montauk is, it's still not as horrible as the consequences of not performing 110-Montauk.
Anyway, that's my thinking. Any thoughts?