> Jarred Sumner, co-founder of Bun and Member of Technical Staff at Anthropic, used Claude Code to migrate Bun from Zig to Rust. A million lines of code were produced in less than two weeks, with 100% of Bun's existing test suite passing in CI before merge. Nineteen regressions surfaced after merge and have all been fixed.
I couldn't come up with a clearer example of how this kind of stuff fails to apply to my work. If I shipped nineteen regressions in 2 weeks, my company would be desperately apologizing to our customers, not writing a blog post about what a great job I did.
JackSlateur•2h ago
I guess even anthropic fails to not get slop from ai ..
Salgat•1h ago
Regressions is a meaningless metric to me. Every app has bugs, and most are either rarely encountered or aren't breaking the app. All I care about is interruption of service.
IshKebab•13m ago
Umm yeah because you didn't rewrite a million line codebase in Rust in two weeks.
Obviously "regressions" is not a great measure (how serious were they?) but 19 seems pretty decent to me.
jryle70•4m ago
They didn't ship 19 regressions over 2 weeks. "Merged" doesn't mean "shipped". Their customers have probably seen none of those because they've all been fixed.
Such a terribly bad faith take. I feel upset about reading this more than I should have.
watwut•2h ago
So, the whole brouhaha was so that Anthropic can write this blog post?
bwfan123•1h ago
> So, the whole brouhaha was so that Anthropic can write this blog post?
Remember mythos ? I was half-expecting them to scare us with a new danger: How AI can covert code into other languages, and confuse the hell out of all of us.
SpicyLemonZest•2h ago
I couldn't come up with a clearer example of how this kind of stuff fails to apply to my work. If I shipped nineteen regressions in 2 weeks, my company would be desperately apologizing to our customers, not writing a blog post about what a great job I did.
JackSlateur•2h ago
Salgat•1h ago
IshKebab•13m ago
Obviously "regressions" is not a great measure (how serious were they?) but 19 seems pretty decent to me.
jryle70•4m ago
Such a terribly bad faith take. I feel upset about reading this more than I should have.