# Agents Refactor 300K Lines in Three Weeks, and Practitioners Ask What it Proves

> **Publication**: aitalky (Independent AI Journalism)
> **Canonical Citation URL**: https://aitalky.vercel.app/news/agents-refactor-300k-lines-in-three-weeks-and-practitioners-ask-what-it-proves
> **Original Source**: [InfoQ AI/ML](https://www.infoq.com/news/2026/09/agentic-refactoring-case-study/)
> **Author**: Steef-Jan Wiggers (undefined)
> **Published Date**: Wednesday, September 30, 2026
> **Category**: RESEARCH
> **Tags**: AI, InfoQ AI/ML, research

## Executive Summary
CodeScene has published a case study in which coding agents refactored 300,000 lines of C over three weeks for roughly $4,000 in tokens, verified by a frame-by-frame replay harness. The agents built a playbook of codebase-specific recipes along the way.



## Full Coverage
CodeScene has published a case study in which coding agents refactored 300,000 lines of C over three weeks for roughly $4,000 in tokens, verified by a frame-by-frame replay harness. The agents built a playbook of codebase-specific recipes along the way

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