OPENAI DROPPED A PDF ON HOW THEY USE CODEX INTERNALLY
and it's actually useful
their engineers across security, infra, frontend, and api teams use it daily for:
▫️ understanding unfamiliar codebases fast (especially during incidents)
▫️ refactoring changes that span dozens of files
▫️ generating tests for edge cases devs usually miss
▫️ scaffolding boilerplate so you ship faster
▫️ staying in flow when your calendar is a disaster
the one that hit different:
one engineer said "i was in meetings all day and still merged 4 PRs because codex was working in the background"…