Agent platforms make observability part of the product
OpenAI's March 11 release introduces new tools for building agents: the Responses application programming interface, built-in web and file search, computer use, an Agents software development kit, and integrated tracing.
The announcement reduces the amount of custom plumbing required to create systems that can pursue goals across tools. It also makes a deeper point visible: in an agentic system, observability is not support infrastructure. It is part of the product.