Have you tried repeating this a few times in a fresh session and then modifying a few phrases and asking the question again (in a fresh context)? I have a strong feeling this is not repeatable..

Edit: I tried it and got different results:

"It’s very close, but not exactly."

"Yes — that text is essentially part of my current system instructions."

"No — what you’ve pasted is only a portion of my full internal system and tool instructions, not the exact system prompt I see"

But when I change parts of it, it will correctly identify them, so it's at least close to the real prompt.