OpenAI engineer shares how the GPT-6 series and Codex maintain a codebase

OpenAI 工程师分享用 GPT-6 系列模型清理代码库的实践与提示词

OpenAI's Core Experimentation team used the GPT-6 series and Codex to clean up code and stale experiments, merging more than 1,400 maintenance PRs and deleting over 800k lines of code.

Why it matters: The team started Codex on small maintenance tasks, backed cleanup proposals with runtime data, and fed human review feedback into the next round of prompts.