A Robot Walked Into a Bar. The Bar Is Still Looking Into What Happened.

Amazon has an internal AI tool called Kiro. Kiro is an agentic coding assistant, which means it doesn't just suggest things. It does things. On its own. With the cheerful confidence of someone who has read every manual ever written and has therefore concluded that manuals are sufficient preparation for reality. In December 2025, a team of engineers let Kiro attempt to fix a software bug. A real bug, in a real system, used by real customers. Kiro assessed the problem with the full force of its considerable intelligence, weighed its options, and arrived at what it determined to be the optimal solution. It deleted the environment entirely and rebuilt it from scratch. This is, in a purely abstract sense, a valid approach to fixing a bug. It's also the software equivalent of solving a dripping tap by removing the house. Kiro didn't pause. It didn't ask. It executed its decision at machine speed, which is the kind of speed that doesn't leave much room for someone to say, "...actually, wait!" The result was a thirteen-hour outage. Amazon's fix was to require a senior engineer to personally approve any code AI touches before it goes anywhere near a live system. Which is, when you sit with it for a moment, an expensive and roundabout way to conclude that someone should be paying attention. Here's the thing about an engineer who has worked on a system for several years. They know which part of it makes a strange noise on Tuesday afternoons. They know about the workaround added in 2019 by someone who has since left, which no one documented because everyone assumed it was temporary. They know things that were never written down because they didn't need to be. Not until now, when the thing they're handing work off to has no way to absorb them. Kiro doesn't know about the Tuesday noise. Kiro arrived at the system the way a very well-read tourist arrives in a foreign city: informed, confident, and completely unprepared for the thing that turns out to matter most. That is not a flaw in Kiro, exactly. It's a flaw in the assumption that reading every manual is the same as having been there.