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Tool calls not visible in traces with OpenAI Agents SDK Realtime model

OpenAI Developer Community March 5, 2026
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Hi everyone,

I’m using the OpenAI Agents SDK JS (latest version) with a realtime model through SIP, and I’m trying to observe tool calls through traces. However, I don’t seem to receive any spans related to tool execution.

In the traces, I only see the in and out spans, but nothing indicating the tool calls themselves.

Is this expected behavior with realtime models, or am I missing a configuration step to enable tool call spans?

Thanks for your help!

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