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.

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

Maybe rtft ? Read the fucking thread.

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.