Harness engineering
Harness engineering: leveraging Codex in an agent-first world
Why it matters
An internal product of about 1 million lines written entirely by Codex; over 5 months, 3–7 engineers merged about 1,500 PRs
Source — Primary sources first; secondary reports are labelled “Press”
Officialopenai.comhttps://openai.com/index/harness-engineering/Added in Week 35, 2026 · See that week