Boris Cherny (Head of Claude Code) Goes Viral: 49 Features in 2 Days, No Hand-Written Code in Months

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A recap of Boris Cherny's Code with Claude talk went viral (1,716 likes, 439K views) with the claim that the Head of Claude Code hasn't written code by hand in months and shipped 49 full features in two days — all AI-generated. At the conference, Cherny introduced 'Routines,' higher-order prompts enabling async automations where developers wake up to merge-ready PRs, and demonstrated multiple simultaneous Claude sessions building features in parallel. His thesis: 'Going forward a lot of code is going to be written in an async way.'