Troubleshooting Metadata Addition in Code Span

Aditya T. · 2025-05-20T21:51:57.704Z

Why is code not adding metadata to my span? @tracer.tool() def translate(a,b, c): my_uuid = uuid.uuid4() metadata = {"conversation_id": my_uuid} with using_metadata(metadata): #my logic goes here return

Your code is not adding metadata to your span because the using_metadata context manager only affects spans created within its block. In your example, the span for the translate tool is created by the @tracer.tool() decorator before entering the with using_metadata(metadata): block, so the metadata is not attached to the tool span. To ensure the metadata is included, wrap the entire function body (including the tool logic) with using_metadata, or use @using_metadata(metadata) as a decorator above the function definition. See customize spans docs and context manager source.Would you like more detail or a code example?Sources: - customize spans docs - context manager source

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