AI Agent Refactors 90,000 Lines of Code Overnight
sterlingcrispin · x · 2026-07-10
The author shares an incredible experience using an AI Agent (Claude 3.7 Sonnet) on a massive codebase. After enabling goal-oriented mode, the agent completed a staggering 90,000 lines of new code and deleted 5,000 lines overnight—essentially doing the work of months of manual refactoring.
Faced with such a massive changeset, the author had the agent generate an HTML execution report for code review, arguing this is an effective review strategy for handling ultra-fast code generation.
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