Docs: OTLP metadata and user identity span attributes#302
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Documents the OTLP ingestion support for attaching searchable metadata to request logs via span attributes (backend PR #936): - Standard OpenTelemetry attributes: user.id / enduser.id -> user_id, gen_ai.conversation.id / session.id -> conversation_id. - PromptLayer custom metadata: promptlayer.metadata.<key>. Adds an "Attaching User Identity & Metadata" section to the OpenTelemetry feature page and a behavior note to the OTLP ingest API reference.
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The OTLP ingestion extractor only resolves promptlayer.prompt.name (optionally with promptlayer.prompt.version). promptlayer.prompt.id is never read and promptlayer.prompt.label is extracted but not used to resolve a version, so documenting them was misleading. Removes promptlayer.prompt.id / promptlayer.prompt.label from the prompt-template linking docs and updates the code samples to use promptlayer.prompt.version.
super-jaba
approved these changes
May 19, 2026
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Summary
Documents the OTLP ingestion support for attaching searchable metadata to request logs via span attributes — the OpenTelemetry-native equivalent of the SDK's
track.metadata(), with no separate REST call.Corresponds to backend PR MagnivOrg/promptlayer-app#936.
Changes
features/opentelemetry.mdx— new "Attaching User Identity & Metadata" section covering:user.id→user_idmetadata, with deprecatedenduser.idas a fallbackgen_ai.conversation.id→conversation_idmetadata, withsession.idas a fallbackpromptlayer.metadata.<key>→<key>metadatapromptlayer.metadata.*overrides standard attributes) and a note that resource attributes apply trace-widereference/otlp-ingest-traces.mdx— added a behavior note listing the metadata attributes.Also: corrected prompt-template linking docs
The existing "Linking to Prompt Templates" docs listed
promptlayer.prompt.idandpromptlayer.prompt.label, but the OTLP extractor only resolvespromptlayer.prompt.name(optionally withpromptlayer.prompt.version) —idis never read andlabelis extracted but never used to resolve a version. Removed the unsupported attributes from the table, API reference, and code samples so the docs match actual behavior.