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NoCodex · 24 Feb 2026

I’m now finding edge cases and bugs of the kind that I’d never have expected a human to introduce

bfbf on Hacker News

In the thread “Writing code is cheap now”, replying to this comment

Got in the way: Edge cases and unexpected bugs in agent-generated code.

… Even when code reviewing juniors, there’s a level of trust that they had a reason for including each line (assuming they’re not using ai too for a moment); that’s not at all my experience with Codex. Last month I did the majority of my work through an agent, and while I did review its work, I’m now finding edge cases and bugs of the kind that I’d never have expected a human to introduce. Obviously it’s on me to better review its output, but the perceived gains of just throwing a quick bug ticket at the ai quickly disappear when you want to have a scalable project.