Okay, uh… you might be hard-pressed to find a co-author for this, especially if you're pitching it as "I want you to edit and fine-tune this for me". Does your co-author get any say in changing the base concept?
Main issue I found with this was that your containment procedures are kind of random and seem unnecessarily specific for reasons not apparently related to the object itself. I recommend reading this guide on containment to get a feel for how to write more logical, resource-conserving procedures. The thing that stuck out the most to me was the exact specifications, especially in regards to measurements. Why 21 cm? Why 3 m? What about 22 cm or 3.21 m? If nothing terrible will happen if the measurements are altered a little as per site accommodations and resources, there's no need to require specifics. Also, generally the number (#) numeration is used for extreme precision measurements that can be fatal if misinterpreted, like drug prescriptions. You don't need to do that with simple whole numbers, especially when you're counting people.
…furthermore, I'm not sure why this thing is Keter if it's a USB. Stick it in a Faraday cage, maybe douse it in water or something, and you're good to go, right? Besides, apparently the effect only manifests when people look at the code with eyes open. (You've also got description in the containment. Remember, containment should just be instructions on how to keep the thing locked up.)
So you know, the "it makes you crazy until dead/disabled/killer monster" approach isn't particularly interesting on its own anymore, given how many times SCPs with that effect have been written. Take a look at the articles tagged with "compulsion". Furthermore, the SCP's effect forcing someone to do something tends to be a bit of a lame narrative, since things are more interesting if there's a struggle involved, and/or if the people instead do terrible things of their own volition. Consider reading through the further discussion on the narrative issues of compulsion and addiction effects.
I recommend getting the base idea polished up in the Ideas and Brainstorming forum before you try fixing the draft. Go to that forum, post a quick summary of the concept you want to write up (don't link the draft unless someone asks), and reviewers there can help you make the idea more interesting and give you some advice on structuring the eventual article for smoothness of reading and narrative.