Distributed tracing #1363
Description
I propose adding a distributed tracing SDK to the repository that enables end-to-end visibility for agentic applications, regardless of whether their components run in the same process or across different machines. The SDK should facilitate the creation, propagation, and continuation of traces across various execution contexts. What I have in mind is something similar to the Opik distributed traces functionality https://www.comet.com/docs/opik/tracing/log_distributed_traces.
Imagine an scenario where an agent is calling a tool that internally is running another agent that it's in an http endpoint. As far as I'm concerned, nowadays there's no way to reuse the same trace id in that endpoint execution.