Note: I correct the given mistake only once. If you do not use the metric system, I will only make a single comment about it, even if it appears again in the rest of the article. If the draft has many language problems, I will only correct the most glaring ones. Unnecessary information will show as the copied text with the redundant information stricken through.
SCP-4081 has shown to be able to escape through thin/poorly constructed walls by “phasing” through them, while his skull is embedded deeply in his mass black smog. As a result, SCP-4081 is to be kept in an underground concrete cell measuring 10 x 15 x 10 at Site-12█. Security cameras and live monitoring are mandatory, and no less than 1 individual may be present inside his observation chamber at all times.
Avoid using fluff text like "To ensure safety" to justify containment. In-universe, it's assumed that all instructions are there for a good reason. If you're building an IKEA bookshelf, you don't need to know that the screws are in place to hold the shelves together. You just need to know where the screws go.
SCP-4081 will occasionally “sleep” and remain docile and dormant for up to ██ hours. However, these numbers are not constant, nor are they to be relied on. To prevent attacks, animal carcasses, skeletons of the deceased, dog bones, and butcher scraps, are to be lowered into his cell on a regular basis.
Same here.
Analysis of SCP-4081’s gas shows a composition of carbon, asbestos, methane, and unidentifiable materials. Upon inhalation, D-Class test subjects have described the smell as electric fire, rust, and flatulence, and have shown to [DATA EXPUNGED] profusely and die 10-15 minutes after exposure.
This sounds like you probably want to mention protective suits in the Containment Procedures.
SCP-4081 is fully capable of speech, and is usually cooperative with foundation staff,
Capitalise ''Foundation''.
He is shown to have reasonable understanding of current events, such as on the 11th of September 2001, when he watched a televised broadcast of the terrorist attack on the World Trade Center and made comments indicating that he knew what was happening and why it was significant.
Not 'he', use 'it'.
In interviews, doctors are advised to proceed with extreme caution, as SCP-4081 interprets almost anything as an insult, and will attack accordingly.
So we throw it into heavy containment until it's done with its hissy fit and learns to behave.
It should always be referred to by its official designation in official documents, rather than any name or other appellation that it prefers, because what it prefers to be called does not matter. In some circumstances, it may be appropriate for staff directly speaking to the SCP to address it by its preferred name (e.g. SCP-811 has a poor grasp of language, so using the name it already recognises as its own greatly streamlines communication), but "it gets moody/angry when called a number" is generally not a good reason for this.
PERMITTED TO BE READ BY AUTHORIZED PERSONNEL ONLY BY THE ORDER OF O5-4
That's a bit excessive. O5 makes Foundation-wide decisions, right now it's like you have to ask the CEO of a company permission to use the copy machine. Use a Senior Researcher (usually Level 3) but no higher than a Site Director (Level 4).
Dr. ████: Oh, Mr. Patt, I’m very sorry for asking you a question outside of your comfort zone-
Why are we groveling to appease this thing? It's an anomalous object, what possible reason do we have for this? That it's dangerous? The Foundation contains objects that are much more dangerous than that.
A newly-installed industrial dumbwaiter was lowered into SCP-4081's cell. It contained █ human femurs, 26 chicken bones, 1 pig skeleton, 1 full cow carcass, raw steak, butcher scraps, and █ human ribcages.
Why would we ever feed it human bones? This is something I see a lot and it always comes off as unnecessary. If I were in charge, it's still getting livestock and it will deal with it. Personnel doesn't grow on trees.