OpenAI Quietly Adopts Skills
Which makes me happy. Via Simon Willison.
I’m a huge fan of Anthropic’s Agent Skills—AKA Claude Skills AKA Skills—as you can see from my recent posts here and here. Simon Willison notes that OpenAI has, very quietly, added support for skills in both ChatGPT and Codex CLI. Hurray!
The concept of Skills is so simple and LLM-friendly that really any reasonably smart model should easily be able to use them, after spending a few minutes looking at their structure and reading docs. I was just asking Antigravity / Gemini 3 Pro yesterday if it could run Skills, and after looking through my .claude/skills directory, its response was “no problem” …
But having first-class support out of the box is significantly better. Maybe OpenAI will even admit and document the capability sometime soon.
