Sources: Mark Zuckerberg is back to writing code after a two-decade hiatus, submitting three diffs to Meta's monorepo, and is a heavy user of Claude Code CLI
Mark Zuckerberg and Garry Tan join the trend of C-level folks jumping back into coding with AI. Also: a bad week for Claude Code and GitHub, and more
The Pragmatic EngineerGergely Orosz
Context & Ripple Effects
Meta’s AI posture has paired developer outreach through open-sourcing its Llama models with an explicitly multi-model philosophy: Zuckerberg has argued there will not be a single dominant AI. His reported use of Claude Code places that posture inside Meta’s own engineering workflow rather than only in product strategy.
The report also follows accounts of AI-strategy shake-ups at Meta after benchmark-related concerns. That makes hands-on use by the CEO a notable operational signal: leadership is directly encountering the tooling and workflow constraints that shape AI-assisted development.
First-order effects
Zuckerberg has reportedly resumed contributing code and is using Claude Code CLI heavily, giving Meta’s top executive direct exposure to AI coding-agent workflows.
Claude gains a high-visibility reported user inside a major AI developer, while Meta engineers receive a stronger signal that external coding tools can be part of senior leadership’s working practice.
Second-order effects
Meta’s internal AI-tool choices may face closer practical scrutiny from leadership, increasing pressure on both internal tools and third-party options to prove reliability in a large shared codebase.
Rival coding-tool providers, including GitHub-linked offerings, have an incentive to compete on developer workflow integration and trust—not merely model capability—when executive users can personally evaluate the products.
Third-order effects
If executive hands-on adoption spreads, AI coding agents could become a management-level productivity and software-governance issue, with tool selection increasingly shaped by auditability, code review, and repository context.
The pattern reinforces a multi-vendor AI stack: companies building frontier models may still deploy competing assistants where their workflows perform best, rather than treating their own model as the default everywhere.
The trend: AI-assisted coding is moving from an engineering-team experiment toward an executive-tested workflow, accelerating competition around context-aware, enterprise-integrated coding agents.
@GergelyOrosz yeah heard the same from a few friends who are eng leads that everybody is getting back to writing code one of the reasons folks mentioned is that once they see their leads adopting these tools - others will follow their lead as well
Mark Zuckerberg is back to landing diffs, 20 years later. Using Claude Code to do so. From today's @Pragmatic_Eng at https://newsletter.pragmaticengineer.co m/ ... [image]
Founders + C-level folks who come from a software engineering background are all getting back to it. Never seen eng leaders get hands-on with a previous technology at so many different places.
Look, I get that most developers use Claude Code or other AI coding tools—I'm not shitting on them here—but to call this “back to writing code” for Zuck is fucking hilarious [embedded post]
I just tried out Cursor 3 and the new interface is much better. The old one had far too many buttons and toggles that got in the way of just talking to the agent. I think this should just be the default view? Why do I need to press cmd+shift+p to use it? [image]
Cursor 3 is here. Where power meets simplicity. Works across all your projects, local and cloud. It starts simple, then unfolds more tools when you need them - so you stay in flow and in control. Enjoy!
I'm glad @cursor_ai took the risk snd went full yolo with Cursor 3, rather than naming it Cursor Glass and also supporting their VSCode based IDE. This would mean supporting two different visions. It's better to abandon the old habits. Congrats on the ship!
Cursor 3 is amazing. At Cursor, we do traffic light votes in slack for new features to measure internal PMF. Green is good, red is bad. Cursor 3 is basically all green, meaning our engineers prefer working out of it more than any other surface. Excited for everyone to try
Meet the new Cursor! Very excited about this. Wanted to share a bit more of the story of how we landed here, how the product evolved, and some of the technical details on the new interface. I've been coding primarily with agents since Opus 4.5, but hadn't found an interface I
Cursor 3 is here! I've been working on this since day 2 of joining the team, working on performance issues. There's still a lot more to do, so please @ or DM me if you run into anything. Cursor 3 has become my daily driver, it's much more powerful than TUIs and the ability to
A new way to orchestrate many agents in parallel between local and cloud, Cursor 3 is out now. All local and cloud agents appear in the sidebar, including the ones you kick off from mobile, web, desktop, Slack, GitHub, and Linear. Cloud agents produce demos and screenshots of
cursor 3 is here, and its incredible its my daily driver where i can switch between cloud/local easily go try it: 1. upgrade 2. cmd+shift+p > agent window
BREAKING: Cursor 3 is now out! It's a complete rewrite to turn Cursor into an agent orchestration tool for dispatching, monitoring, and managing AI agents locally and in the cloud. We've been testing it for the last week internally @every and here's our vibe check: - The [image]
We recently launched Composer 2, a frontier model with high limits. Then, with cloud, we gave agents their own computers so they can work truly autonomously. And now with Cursor 3, we're releasing a new interface to collaborate with agents on software. https://cursor.com/...
We're introducing Cursor 3. It is simpler, more powerful, and built for a world where all code is written by agents, while keeping the depth of a development environment. [video]
New: Cursor is launching Cursor 3, a new product interface centered around spinning up and managing AI coding agents. This is Cursor's answer to the rise of viral products like Claude Code and Codex. They teased this product a few weeks ago under its internal code name “Glass.” […