I'm not super familiar, but I think a "Class 10,000" clean room is actually quite on the "dirty" end of the clean room spectrum. Perhaps they figured this had a low likelihood of being the source of domestic microbes?
Seconding this. Have been using the same JBC tips for 4 years with great success.
When using the brass wool, I tend to lightly rest the tip in a clean area. Maybe sometimes I will rotate it a few times, but I never use pressure or make wiping or scrubbing motions. I'm not sure if it really matters though (ie. how do the hardness of the tip plating and the brass compare?).
What I normally do in cases like this is set up the necessary scaffolding for the solution. In your case, that could be introducing a variable named something like `access_token` for it to substitute into the URL.
Then, when you trigger a suggestion it's very likely that CoPilot will use your `access_token` variable.