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# Add Metadata
Tracing can be augmented and customized by adding Metadata. Metadata includes your own custom attributes, user ids, session ids, prompt templates, and more.
[customize-spans.md](customize-spans.md "mention")
* Learn how to add custom metadata and attributes to your traces
[instrumenting-prompt-templates-and-prompt-variables.md](instrumenting-prompt-templates-and-prompt-variables.md "mention")
* Learn how to define custom prompt templates and variables in your tracing.