The Ledger
Every statement that passed quotation and attribution checks. Mix any filter with any other: certainty 1/5, debate potential 5/5, or both at once.
why aren't all 9 resolved? a statement only gets an assessment when the public record can support or contradict it. opinions and what-ifs never can, and 0 checkable ones are still open, waiting for their date. predictions held up or didn't; assertions are supported or contradicted. on every card: ▮▮▮▮▮ certainty · ▮▮▮▮▮ debate potential. speakers are clickable
Cherny has not edited a single line of code since November
“I have not edited a single line by hand since November.”
Cherny: Claude Code went from writing 20% to 100% of his code
“Because even in February when we released it was writing maybe, I don't know, like, 20% of my code, not more. And even in May, it was writing maybe 30%. I was still using, you know, Kurtzer for most of my code. And it only crossed a hundred percent in November…”
Cherny: Claude Code's Plan Mode just injects a single-sentence negative prompt
“All it is, is we inject one sentence into the model's prompt to say, please don't write any code yet. That's it. Like there's actually like nothing fancy going on. It's just the simplest thing.”
Boris Cherny ships 10 to 30 pull requests every day
“Every, you know, every day I ship like 10, 20, 30 pull requests, something like that.”
Cherny: Anthropic's Cowork agent handles all project management for his team
“All of my project management for the team co-work does all of it. It's like syncing stuff between spreadsheets and messaging people on Slack and email and all this kind of stuff.”
Cherny: One-third of his coding is now done on an iOS app
“Maybe a third of my code now is in the terminal, but also a third is using the desktop app. And then a third is the iOS app, which is just so surprising because I did not think that this would be the way that I code in, even in twenty-twenty-six.”
Cherny: Anthropic's Claude Code team does not spend time testing competing products
“Honestly, for our team though, we're just focused on solving the problems that users have. So for us, you know, we don't spend a lot of time looking at competing products. We don't really try the other products.”
Cherny continuously runs around five concurrent AI agents in his workflow
“I always have a bunch of agents running. So like at the moment I have like five agents running and at any moment, like, you know, like I wake up and I start a bunch of agents.”
Anthropic evaluated Cowork against Lenny Rachitsky's 50 tasks, shipping at 48 passes
“So we actually, one of our PMs used that as a way to evaluate Cowork before we released it. And I think at the point where we hit where Cowork was able to do like, 48 out of the 50, they were like, okay, it's pretty good.”