The Anthropic leader who built Claude Code says he ditched prompting — now he just writes loops.
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community 7
strategic 8
personal 10
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Summary
Boris Cherny, head of Claude Code, says he now writes loops instead of prompting Claude, a pattern Addy Osmani named loop engineering. It combines scheduled execution, isolated workspaces, verifier agents, and persistent memory to transform coding agents into autonomous workers. A key design choice: splitting the code-writing agent from a separate verification agent to catch errors the first agent rationalized itself into.