Hide built-in function proxying

[JustArion]

While you patch functions like console.clear it is still detectable that it's been patched via its toString() call and that a built-in function has a .prototype

You can prevent this by replacing the toString function of any Proxies with a fake

function clear() {
  [native code]
}

Then of course, deleting its prototype too.

    delete console.clear.prototype;
    delete console.clear.toString.prototype;

[JustArion]

It is possible someone can check if toString is modified too, but this leads into a massive spiral of "How many layers deep do you want to go"

You could possibly automate this by patching the getter of the function and then adding 1 layer deeper when they got the last in the chain. So the chain will always be +1 longer than what's already been searched.