Crazy: A migration Asana's own engineers had scoped at five years took OpenAI's Codex agents about a week and a half.

The job was ripping out Enzyme, an obsolete React testing framework that blocked every attempt to upgrade the company's frontend and that nobody had been willing to touch, because the estimate ran to five years of engineering and roughly $6 million in staffing.

Up to four Codex agents worked in parallel on separate copies of the codebase from a five-sentence prompt, with engineers reviewing their proposals twice a day. The whole thing came in at roughly $12,000 in model and infrastructure costs.

So yeah, literally everything is accelerating.