Anthropic Says Nobody Needs a Mental Model of Claude Code. Practitioners Are Testing That



Posted on Thu Oct 29 2026 | 3:28 pm


Anthropic has published how the Claude Code team reviews code now that Claude writes roughly 90% of it, including a claim that nobody keeps a complete mental model of the codebase. The post documents a pull request that ran more than fifty review rounds overnight, a reviewer spending most of its effort on pre-existing code, and a control the team says it does not yet have.




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