Overall:
Generally, I'm a fan of short and sweet articles, and I like the premise you've set up here. However, I think this draft's length works against it. Specifically, it feels as though we're missing something. The ending, which sees an incident occurring that somehow involves Bright, several SCPs, and the sharpener feels like it has no buildup. We suddenly jump from Friedrich's note about how it will be on his desk to what appears to be his death. Since we're never given any time to learn about Friedrich besides the fact that he's a father. While his death does carry some weight because of that, it's not quite enough to make it feel like a satisfying conclusion.
The way in which the incident is described also doesn't help with this. While I don't have anything against Bright, his sudden mention here feels out of place. It also makes Friedrich's death feel rather cheap as a narrative conclusion.
There's also a lot of blackboxing and redactions, some of which I think are unnecessary. Here's a guide that I use to better utilize redactions and black boxes: What Hides Beneath: the Black and White of Blackboxing
Specific:
I'll be using strikethough for what to cut out and green to show what to add.
Object is to be kept on the desk of Researcher Dr. Friedrich. If object is to be moved, for any reason Dr. Friedrich should be notified out of courtesy, though not necessary
Considering the object is still anomalous, it's hard to believe a researcher would be allowed to keep it on their desk, even if it's not a direct threat. I get what you're trying to go for here, like it's just another office tool, but it's the Foundation, so this could probably be a little more strict.
However, even though the object did not shred or tear any mass from the item inserted into it, the sharpener would, upon use, start to expel shavings molecularly identical to the item inserted.
However, even though the object did does (this would be written as present tense, since it's before the object was neutralized) not shred or tear any mass from the item inserted into it, Instead, the sharpener would, upon use, start to expel shavings molecularly identical to the item inserted upon use.
Experiments SCP-XXXX-A through E
Experiments are fine to have, but I feel it ends up repeating a lot of the same information. For instance, experiments A and C are almost exactly the same, except that C shows us the sharpener can work on things harder than a pencil. While the tests do overall show a natural progression, for the article's and brevity's sake, I think you can cut C and maybe B, since most of this information we get from the description.
It seems that the only strange thing about SCP-XXXX is that the item can copy and produce any matter identical to what is put inside of it, in the form of if it were pencil shavings. This effect only works if SCP-5209’s blade is put on upside-down from the manufacturer’s original orientation.
This feels a bit redundant, especially the part reiterating that the anomalous properties don't work when the blade is in the default position. Since we just saw this for ourselves in the tests, I think you can cut or at least trim this portion.
Given the unforeseen and unfortunate events transpiring on ██/██/████ at Site-██ perpetrated by Bright and his use of SCP-XXXX on SCP-[REDACTED]
I touched on this earlier, but this essentially edits out probably the most interesting part of the story. Describing this incident provides an opportunity to give some more emotion to Friedrich's death. Without knowing exactly how the sharpener was used or how Friedrich dies, the article ends far too quickly and we are just left confused and unfulfilled.
Advice:
The main part where I see this can be improved is in expanding the incident report at the end. I mean, we don't even know why Bright wanted the sharpener. Even a character as unpredictable as Bright still needs some kind of motivation. If you want the impact of Friedrich's death to land and wrap up the story, then it's best to at least describe that he died in a relatable or understandable way. (Ideally tying back into his role as a father, since that's pretty much all we know about him) Perhaps you could just add a bit talking about how Bright thought that the sharpener when used on SCP-???? could maybe cure his immortality, but cause massive collateral damage at the same time. (Maybe Friedrich tried to stop Bright, but died in the process) This way, we at least know that Friedrich died because of Bright's selfishness and can feel sorry for him.