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Boris Cherny

What Boris Cherny thinks about design

@boris-cherny · 35 positions · On ppll ↗

Creator of Claude Code at Anthropic.

Boris Cherny did not write this page.

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Only Boris Cherny on design. See everyone on design

3 dated positions, 2026, in their own words. Our reading of what Boris Cherny has said — not written or endorsed by them.

3 positions so far — this page is not yet offered to search engines.

  1. Our readingBuilding on a model is unlike any previous software engineering, because the thing you are building on cannot be designed up front.

    software quality

    Their wordsI I think this is sort of the crazy thing about building on models. It's just so different than all the engineering that I've ever done. Like in the past when you built on systems, you built these like big beautiful systems and you really think about the system design up front. You have like a big suite of unit tests. You think about everything and you know, like a re-architecture is a big project.

    ↗Boris Cherny: We Cut 80% of Claude Code's Promptyoutube.com 7th of 20 in this recording

  3. Our readingCoding is solved for the kind of coding he does, and not for everyone: deep systems work, distributed systems and pixel-level UI checking still defeat the model.

    Their wordsSo coding is solved for the kind of coding that I do. It's not solved for everyone. You know, there's still code bases that are like super deep systems code bases where quad still struggles.

    ↗Boris Cherny: We Cut 80% of Claude Code's Promptyoutube.com 19th of 20 in this recording

  4. 5 months earlier

  5. Our readingWorking prototypes have replaced product requirement documents.

    Their wordsThere’s just no way we could have shipped this if we started with static mocks and Figma or if we started with a PRD.

    ↗Building Claude Code with Boris Cherny — The Pragmatic Engineernewsletter.pragmaticengineer.com