feat(langchain): add OpenTelemetry GenAI semantic conventions#3673

Merged

galkleinman merged 13 commits intotraceloop:mainfrom

jemo21k:mk/langgraph_add_workflow_commands

Mar 3, 2026

Commits on Mar 2, 2026

feat(langchain): add OpenTelemetry GenAI semantic conventions

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fix(langchain): address CodeRabbit review feedback

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fix(langchain): address additional CodeRabbit review feedback

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fix(langchain): add missing GEN_AI_PROVIDER_NAME to on_retriever_start

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fix(langchain): address CodeRabbit review - metadata and event guards

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fix(langchain): use string[] for workflow structure per maintainer feedback

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fix(langchain): use lowercase provider name per OTel conventions

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fix(langchain): let exceptions propagate naturally in extract_graph_structure

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fix(langchain): address maintainer feedback - SpanHolder, semconv, agent ID

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fix(langchain): add ensure_ascii=False to new json.dumps calls for i18n support

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fix(langchain): use official OTel semconv attributes, remove duplicates

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Commits on Mar 3, 2026