Only to me, the person with access to the session. It implies LLM generated to anyone looking at the commit.

How would it know for certain it was used for a given commit? What if there was no code? What if the approach was different, but some lines were the same?

I think some folks think that using an LLM is a shameful act and this is somehow shaming it and others believe that it ties back to the conversation. These conversations don't have any guarantee of being accessible over the long haul. If there was value in the conversation, the conversation should be somehow captured as well, not just some URLs.

Only if you deliberately made the session available for others to view. And they view it before jumping to conclusions.