The man who built the tool that’s rewriting how software gets made hasn’t touched a keyboard to write code in the better part of a year.
Boris Cherny, the head of Claude Code at Anthropic, dropped the detail almost in passing during a fireside chat at the Fortune Brainstorm Tech conference. “I haven’t written a line of code by hand in, I think, eight months now,” he told Fortune AI editor Jeremy Kahn: “Claude Code, 100% written by Claude Code,” he said. He added that Anthropic’s biggest enterprise customers — Salesforce, NASA, Y Combinator startups — are trending in the same direction.
This is the reality taking shape inside what may be the closest thing the tech industry has to a fully agentic organization. And if Cherny is right about where it’s heading, the implications stretch far beyond Silicon Valley.
The Gutenberg moment
Cherny reached for a 500-year-old metaphor to explain what’s happening. Before Gutenberg’s printing press in the 1440s, European literacy hovered around 10%. Reading and writing were professional skills, the province of scribes employed by lords and kings. The press didn’t just make books cheaper — it reduced the cost by 100x and triggered an explosion of published literature that exceeded the previous thousand years in just five decades.
