Comment by yoyohello13
21 hours ago
I'm willing to bet most of their libraries are definitely vibe coded. I'm using the claude-agent-sdk and there are quite a few bugs and some weird design decisions. And looking through the actual python code it's definitely not what I would classify 'best practice'. Bunch of imports in functions, switching on strings instead of enums, etc.
I had to downgrade to an earlier release because an update introduced a regression where they weren't handling all of their own event types.
I think they are betting that any of this code is transient and not worth too much effort because once Opus 5 is traimed, they can just ask it to refactor and fix everything and improve code quality enough so that things don't fall apart while adding more features, and when opus 5.5 comes out it will be able to clean up after opus 5. And so on. They don't expect these codebase to be long lived and worth the time investment.
But they are burning billions. Why worry about a few millions for a bunch of 10x developers that fix the UI issues?
A few weeks ago the github integration was completely broken on the claude website for multiple days. It's very clear they vibe code everything and while it's laudable that they eat their own dogfood, it really projects a very amateurish image about their infrastructure and implementation quality.