Agentic coding at Airbnb

We will tell you about agentic coding at Airbnb. So, not looking at everything you can do with AIs, but specifically agenting coding. And I'm Szczepan, joining with Mike. We're engineers at Developer Group Platform at Airbnb, and we build tools for engineers and we integrate those amazing AI technologies. And I've been building tools for engineers for

close to two decades. I've done open source. Maybe you use some of that. And it's been, I'm amazed where this like GenAI evolution is taking us. It's like, I've not seen such growth of productivity so far. So, it's amazing. So at start of 2025, we set that vision. We told us that this is how we explain to our leadership where

we headed. The way we like to do it, especially when we are tackling some big things, big step function changes, is we set up like a bold vision and then figure out how to work backwards from there. This helps because, you know, if you only think about incremental improvements, it's kind of hard to make a big change.

Now, we thought that this vision is bold. Now it's probably normative, right? We've seen the progression of the models and the tooling. But that's how we started earlier this year. S: And to put it into some like images, we started with those like, you know, old ways of developing engineers, like typing letters and numbers and producing lines of code

through what we've done a few years ago with copy pasting from ChatGPT and, you know, your co-pilot, all good tools, we still use them. But that's not where the magic happens. This is not this like paradigm shifting change where an agent can, sorry, when a developer, not an agent, when a human engineer can steer multiple agentic sessions and produce and