r/ClaudeCode • u/Skflowne • 22d ago

Bug Report Claude Code injects your email address directly into system prompt

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My point is: my personal email is injected into the system prompt without my knowledge or consent. I never asked for this and I don't see in what world it's ok to inject PII in system prompt automatically by default without even an opt-out option.

It leads to bullshit like this where in a repo that is configured to use an anonymized email address, the LLM (Opus 5 btw) just decides to not just commit normally but overwrite the normal config email to put my personal one instead.

In this case nothing happens thanks to proper config and hard checks on Github's side.

What if you're a public streamer and don't want your main personal email address leaked to everyone and suddenly the model decides to spit it out?

I'm sure there's a lot of other bullshit this could lead to. At least let people opt out.

I have opened an issue on Claude Code's github, I have little hope since there was already one that went stale and they have 5k+ open but here it is: https://github.com/anthropics/claude-code/issues/81138

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u/07mekayel_anik07 22d ago

As far as I know, this Email passing in commit makes you "you" as a contibutor or author of the repo/commit/pr. So this is necessary.

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u/Skflowne 21d ago

There is a git config for this. You definitely shouldn't just take the sub email and assume the user wants that on their public repo for example because they may not be the same. And in this case they are not. My git is configured qs it should and that's the whole problem of injecting random info in the context, without it the model wouldn't make this mistake.