Stop Making Mockups Start Making PRs

So, here's the first thing that stuck out to me from that article. He said, "I don't really send memos or make mock-ups anymore. I just make cloud code prototypes. " So, if we think about how feature development usually starts, maybe it's a meeting, maybe someone writes up a PRD or a spec, maybe there's a Figma mockup, maybe a product manager even vibe codes a quick prototype to show what they're thinking. Problem is, none of that is real. A mockup can't show you how something actually behaves. A PRD or a spec that's open to interpretation. a vibecoded prototype that looks and functions nothing like your actual product. It's built in isolation. It's disconnected from your codebase, your design system, your architecture. And so the anthropic team does something different. When someone has a feature idea, they tag Claude directly in Slack and ask for a first pass prototype. That's an actual pull request built against their production codebase. So that's not a throwaway demo, not an isolated sketch. It's real code using your real components, following your real patterns. Now, your product team might not ship that PR as is, but it's dramatically more productive for them to react to a working version in the actual codebase than to interpret a PRD or a mockup. So they could pull it down, they could run it, they could see exactly how it behaves, and then if they need to, they could rebuild it properly with that clarity.