Comet Lab Atlas

OpenAI Agents SDK

Agent frameworks

OpenAI's lightweight framework for building agents with handoffs, guardrails, and built-in tracing.

The OpenAI Agents SDK is a small, deliberately unopinionated library for building agents. Its core ideas are few: an agent with instructions and tools, handoffs that pass control between agents, and guardrails that validate inputs and outputs.

It ships with tracing built in, and while it is tuned for OpenAI models it works with other providers. The appeal is restraint — enough structure to be useful, little enough to stay out of the way.

Where it's ideally used

A good fit when you want a minimal agent loop with handoffs and tracing, and you are already building on OpenAI models.

Where it doesn't fit

Light on built-in orchestration — for complex branching control flow a graph framework gives you more to stand on.