The original question was about this:

> allow zoned access enforcement within files. I want to be able to say "this section of the file is for testing", delineated by comments, and forbid Claude from editing it without permission.

I think you missed a critical step: 1.5: know that "allowed tools" is the correct incantation required to summon the relevant documentation; which, at least to me, is not obvious at all in the context of the OP.

So you've completely misunderstood what the discussion is about...

Maybe rtft ? Read the fucking thread.