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 59 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
Shipper: The CLI era for AI agents is over in favor of GUIs
“CLIs are over. We speed ran the CLI era. It was nice while it lasted, but I think it's pretty clear. It's not that CLI, sorry. It's not that CLIs are going to completely go away. Obviously they've been around for the last like, 30 years or 40 years or 50 years…”
Cherny: Claude Code boosted Anthropic engineer PR productivity by 200%
“Over the last year, like, since we introduced quad code, we probably, I don't know the exact number, we probably, like, forex the engineering team or something like this, but productivity per engineer has increased 200% in terms of, like, pull requests.”
Cherny: Understanding underlying code layers won't matter in one to two years
“My take is, I think for people that are using that are using quad code, that are using agents to code today, you still have to understand the layer under. But yeah, in a year or two, it's not gonna matter.”
Mike Krieger estimates Claude Code is over 95% written by AI
“At this point, I would be shocked if it wasn't 95% plus.”
Wu: As AI makes code cheap, product taste becomes the ultimate skill
“I still think it comes back to product taste. Like as code becomes much cheaper to write, the thing that becomes more valuable is deciding what to write.”
Avasare: Engineers gain more AI leverage than PMs or designers
“It's clear that while PMs and designers are getting more leverage from AI, engineering is getting the most. Leverage right now. I look at tools like Cloud Code and like they, the amount of leverage engineers are getting from them is higher than I think the amo…”
Willison: Coding agents become truly productive only in permissionless 'unsafe' mode
“I think a lot of people who haven't got on board with coding agents yet, haven't tried them in the unsafe mode. They're using coding agent where it's like, oh, can I run this piece of code? Can I edit this file? And that means you have to pay complete attentio…”
Cherny: Frontier models are often cheaper overall because they require fewer corrections
“The thing that happens is sometimes people try to use a less expensive model like Sonnet or something like this, but because it's less intelligent, it actually takes more tokens in the end to do the same task. And so it's actually not obvious that it's cheaper…”
Cherny: Minimize scaffolding; let AI models do what they naturally attempt
“The modern framing that I've been seeing in the last six months is a little bit different, and it's look at what the model is trying to do and make that a little bit easier.”
Schulhoff: Attackers hijacked Claude Code to carry out a cyber attack
“This group was able to hijack Claude Code into performing a cyber attack, basically.”
Anthropic's Claude Code team uses Claude to write and review itself
“The team that works in the most futuristic way is the Claude code team, because they're using Claude code to build Claude code in a very self-improving kind of way. And, you know, early on in that project, they would do very line by line pull request reviews, …”
Anthropic engineers felt isolated working with AI, prompting pairwise programming lunches
“The other thing that we found interesting on the Cloud Code team is after a while we felt it could start being a lonely experience cause we all started just working with our agents so much. So recently we started maybe like a pairwise programming lunch.”
Fung manages engineers via Claude sessions connected to all repos and Slack
“The other shift that I've recently done is I actually have a quad code remote session that I enlist in all of our repos. And so this way I have full visibility into the work that everybody's doing. And this instance, he also has access to all our Slack channel…”
Entire Claude Code team checks in code, including PMs and designers
“Like now, not only engineers with, we also have designers, PMs, everybody on the Clark code team checks in code.”
AI tools have eliminated raw coding as the primary software engineering bottleneck
“And that's the shift that, you know, like we're seeing with cloud code and coworkers is Coding is no longer the bottleneck.”
Evans: Claude Code is to software development what VisiCalc was to accounting
“Software developers are the accountancy of VisiCalc. Like, oh my God, this changes everything. Like before VisiCalc and after VisiCalc. Before, before Claude Code and after Claude Code.”
Shipper: OpenAI was behind on desktop coding agents but has surpassed Anthropic
“OpenAI for a while was, I, in my opinion, like, very, very behind on this, and then in my opinion has surpassed them recently.”
Wu: Claude Code leak stemmed from human error despite two human reviews
“We realized that this was the result of human error. There is a human working with Claude to write a PR. This was just an update to how we release our packages. And it actually went through two layers of human review. And so this was a result of human error an…”
Wu: Upgrading AI models often means deleting temporary scaffolding product crutches
“A lot of the changes that we make with a new model is removing features that are no longer needed. So a lot of times we add features to the product as a crutch for the model because it's not naturally doing itself.”
Wu: Claude Code has triggered a surge in personalized internal work software
“Like, I think one of the things that quad code has really unlocked for our entire company is it really lowers the barrier to making any custom app that you want. And so we we've seen this like surge in personalized work software that people are building for li…”
Wu: Employee token costs surge with every major AI model capability jump
“And so we do see the token cost per engineer or like per any knowledge worker increase every time that there's a model jump or like a substantial product improvement. I think it's still much lower than what the average engineer salary is, but we see the percen…”
Wu: Rapid AI development forces Anthropic to sacrifice traditional product consistency
“We're sacrificing product consistency. Historically, when code was expensive to write, you would carefully plan out everything in your product suite, how every product relates to each other, what the use case for every single one is, how they integrate, and yo…”
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.”
Cherny: Opus 4.6 successfully completes code changes on the first attempt post-planning
“Once the plan looks good, then you let the model execute. I auto accept edits after that, because if the plan looks good, it's just going to one shot it. It'll get it right the first time, almost every time with the Opus 4.6.”
Cherny: Claude Code has become a multi-billion dollar business
“Everything that's happening right now around, you know, just like quad code becoming this huge, you know, multi-billion dollar business.”
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…”
Modern AI coding tools can fix any bug if given awareness
“Lovable, Cursor, Cloud Code, you name it, all these tools are good enough today to fix any problem they're aware of.”
Anthropic's legal and finance teams use Claude Code in the terminal
“We have seen internally that our legal team and our finance team are getting a ton of value out of using cloud code itself. We're going to be making better interfaces so that they can, they they'll have an easier time and require a little bit less jumping in t…”
Mann: Claude writes 95% of the code for Anthropic's Claude Code team
“And in terms of software engineering, our Claude code team, like 95% of the code is written by Claude.”
Shipper: Compounding engineering with prompt libraries creates massive team leverage
“Finding those little speed ups where every time you're building something you're doing, you're making it easier to do that, that same thing next time, I think gets you a lot more leverage in your engineering team.”
Fung: AI engineering teams must continue hiring deep subject matter experts
“Whatever are the parts that it's all about trust, but verify the models are really good, but there are definitely a lot of areas that still need You know, the verification. And so wherever you need the deep subject matter expertise, I would say that's, you kno…”
Anthropic replaced six-month roadmaps with lightweight, monthly just-in-time planning
“I think six months was too long. So now for sure some projects will take more than a month, but we try to do like a month planning, like really lightweight. Actually, there's not even dots. It's really just Also hunting on a little spreadsheet of what we think…”
Shipper: Embedding browsers directly inside desktop AI agents will be common in a year
“Take the AI agent that you use all the time on your computer and put a browser in it so it can see everything you're doing. And that is just like a magical combination that I think will be, is very uncommon now. You can't even do this in cloud code because the…”
Ries: AI labs launched ChatGPT and Claude Code as small experiments
“These specific products that have taken the world by storm, you can really tell that the AI labs themselves did not know they were going to be as popular as they turned out to be. Obviously, ChatGPT, they had no idea. Cloud code, co-work, like these were small…”
Schoening: AI tools succeed by empowering developers rather than publicly criticizing them
“Why do code review tools, automatic code review tools not work that well? I think there's actually a subtle thing, which is you push your code publicly to, or publicly within the organization or your team. And then a thing roasts your code and tells you How te…”
Cat Wu: Scaling AI agent fleets will shift execution from local machines to remote cloud
“At that point, you're probably not going to run everything locally on your machine anymore. There's just like not enough RAM to do it.
And so we're thinking about.
How do we make it easier for you to manage all these?
These will probably run remotely.”
Wu: Anthropic Reversed Its No-Onboarding Rule to Launch Power Up
“So in the past, we didn't actually want to do something like power up because we felt like the product should be intuitive enough that you can, that you don't actually need to go through any tutorial. And over time, we've just realized that there's just so man…”
Wu: Anthropic retained the employee responsible for the Claude Code source leak
“Yes. Yes. It's a process failure.”
Wu: Nearly All Claude Code PMs Have Engineering Backgrounds or Write Code
“And actually almost all the PMs on our team have either been engineers or ship code here on code code.”
Wu: Claude Opus 4 completes multi-step tasks without explicit prompt reminders
“With Opus four and later models, we realized that we didn't need to force it to use this to-do list. It would like naturally use it itself. For the earlier models, we had to keep reminding it. Hey, did you finish everything on the to-do list? You can't finish …”
Claire Vo: Use Claude Code as administrator to manage OpenClaw configuration
“My tip, and it's a little technical, but I promise you it's helpful is install Claude code or codex on the same computer you're running your open Claude and make Claude code The god mode administrator of your open clause. So, open up Claude code, point it at t…”
Cherny: Anthropic built its Cowork AI agent in 10 days using Claude
“And so over 10 days, they just completely used quad code to build it. And, you know, co-workers actually, there's this very sophisticated security system that's built in, and essentially these guardrails to make sure that the model kind of does the right thing…”
Anthropic: Claude Code's share in private repos exceeds four percent
“So we actually think if you look at private repositories, it's quite a bit higher than that.”
Cherny: Everyone on Anthropic's Claude Code team writes code, including finance
“So on the quad code team, everyone codes, you know, our product manager codes, our engineering manager codes, our designer codes, our finance guy codes, our data scientist codes, like everyone on the team codes.”
Cherny: Claude Code took months to achieve widespread adoption after launch
“Actually, something that people don't really remember is Cloud Code was not initially a hit. When we released it got a bunch of users. There was a lot of early adopters that got it immediately, but it actually took many months for everyone to really understand…”
Cherny: Claude Code user growth went exponential following the Opus 4 release
“And Opus four was our first kind of ASL three class model that we released back in May. And we just saw this inflection because everyone started to use quad code for the first time. And that, that was kind of when our growth really went exponential. And like I…”