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MH Magnus Hagander On Talking Postgres with Claire Giordano

“Don't just have an AI agent write your patch and send it in. When people who are reviewing the patches look at it, they see that's the case, and they're going to lose interest. … You don't want to put yourself in a position where the senior developers, as soon as they see a patch come in from you, think: oh, I don't want to review something that Claude wrote.”

Talking Postgres with Claire Giordano · Hands-On Engineering Podcasts · November 2026

“Don't just have an AI agent write your patch and send it in. When people who are reviewing the patches look at it, they see that's the case, and they're going to lose interest. … You don't want to put yourself in a position where the senior developers, as soon as they see a patch come in from you, think: oh, I don't want to review something that Claude wrote.” — Magnus Hagander, Talking Postgres with Claire Giordano

Context

Asked how newcomers can start contributing to Postgres, he pointed to mentorship workshops, then added advice for the AI era. An agent can be a tool, but the contributor must stay the one who develops the patch and talks to reviewers.

Transcript

Talking Postgres with Claire Giordano Around 1:05:26 into the episode
Magnus Hagander

…interacting with those senior developers at events? And I say I'm sad only, only in the way that I wish that wasn't a requirement. It's not a requirement, but I think it helps because then you can explain in person and get somebody on the inside to be interested in the topic that you're working on.

Claire Giordano

…to think about pushing something out there on the mailing list, subject to a lot of scrutiny and a lot of potential criticism from the get-go. And they like that kind of one-on-one opportunity to get feedback before they push it out there to a broader audience. So I thought that was pretty cool.

Magnus Hagander

Yeah, I think that's a great idea. And same as these workshops, like it's a chance to get started in a smaller group, get a little bit more focused attention in between them. So yeah, I think these are great initiatives. I think another thing that is also worth mentioning in the environments of today is don't just have an AI agent write your patch and send it in. Like no, when people who are reviewing the patches look at it, they see that's the case or in the first dialogue, they realize that's the case and they're going to lose interest. You can certainly use an AI agent as a tool as you're developing your patch, but you're the one who's developing the patch. You are the one who interacts with the reviewers who are going to take a look at your patch and things like that. And I think you don't want to put yourself in a position where. The senior developers, as soon as they see a patch come in from you, like, oh, yeah, I don't want to review something that Claude wrote. It's a tool, but you've got to do your part as well. And don't sort of lock yourself out of this very creative and very efficient review feedback loop by more or less scaring…

Claire Giordano

Yeah. Which is especially true because you need those people in order to get anything committed. So you have to be earning their trust. I mean, it's amazing what the AI agents can do these days. If we could go back in time to a year ago and then fast forward to now, we'd be shocked, right? They are…

Magnus Hagander

It's very difficult. And I think that's exactly the point. It's a great tool. It is amazing what it can do. But as with all tools, you've got to use it right. And you can't just abdicate from responsibility that you are the one who's doing this. It's a tool for you. It's not an entity of its own.

Claire Giordano

So back to office hours for a second. Do you hold them? Or have you thought about it? Or are you still thinking about it? Or it's not for you?

Speaker names come from our own diarization. The position is estimated from where the line sits in the episode.

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