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Signed-off-by: joelrobin18 <joelrobin1818@gmail.com>
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B-Step62
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Overall looks good! Left a few comments.
mlflow/server/js/src/shared/web-shared/model-trace-explorer/chat-utils/voltagent.ts
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joelrobin18
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Dec 1, 2025
| their parent agent's type ("agent"), not their own type. Only root | ||
| agent spans have entity.type correctly set to "agent" without span.type. | ||
| """ | ||
| # Check span.type first (for LLM/tool/memory child spans) |
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Example of trace data from voltagent:
parent:
{
"name": "my-voltagent-app",
"span_type": null,
"attributes": {
"entity.type": "agent",
"span.type": null
}
}child:
{
"name": "llm:streamText",
"span_type": "LLM",
"attributes": {
"entity.id": "my-voltagent-app",
"entity.type": "agent",
"entity.name": "my-voltagent-app",
"span.type": "llm",
"llm.operation": "streamText",
"mlflow.spanType": "LLM"
}
}Child spans have entity.type set to parent agent's type. If we checked entity.type first, it would cause wrong span type detection. Hence we first check for span.type and then fallback to entity.type so that both of them can be captured.
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Signed-off-by: Yuki Watanabe <31463517+B-Step62@users.noreply.github.com>
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Signed-off-by: joelrobin18 <joelrobin1818@gmail.com> Signed-off-by: Yuki Watanabe <31463517+B-Step62@users.noreply.github.com> Co-authored-by: Yuki Watanabe <31463517+B-Step62@users.noreply.github.com>
BenWilson2
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Signed-off-by: joelrobin18 <joelrobin1818@gmail.com> Signed-off-by: Yuki Watanabe <31463517+B-Step62@users.noreply.github.com> Co-authored-by: Yuki Watanabe <31463517+B-Step62@users.noreply.github.com>
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Related Issues/PRs
#xxxWhat changes are proposed in this pull request?
Voltagent Support using OTel
How is this PR tested?
Does this PR require documentation update?
Release Notes
Is this a user-facing change?
Voltagent Support using OTel
What component(s), interfaces, languages, and integrations does this PR affect?
Components
area/tracking: Tracking Service, tracking client APIs, autologgingarea/models: MLmodel format, model serialization/deserialization, flavorsarea/model-registry: Model Registry service, APIs, and the fluent client calls for Model Registryarea/scoring: MLflow Model server, model deployment tools, Spark UDFsarea/evaluation: MLflow model evaluation features, evaluation metrics, and evaluation workflowsarea/gateway: MLflow AI Gateway client APIs, server, and third-party integrationsarea/prompts: MLflow prompt engineering features, prompt templates, and prompt managementarea/tracing: MLflow Tracing features, tracing APIs, and LLM tracing functionalityarea/projects: MLproject format, project running backendsarea/uiux: Front-end, user experience, plotting, JavaScript, JavaScript dev serverarea/build: Build and test infrastructure for MLflowarea/docs: MLflow documentation pagesHow should the PR be classified in the release notes? Choose one:
rn/none- No description will be included. The PR will be mentioned only by the PR number in the "Small Bugfixes and Documentation Updates" sectionrn/breaking-change- The PR will be mentioned in the "Breaking Changes" sectionrn/feature- A new user-facing feature worth mentioning in the release notesrn/bug-fix- A user-facing bug fix worth mentioning in the release notesrn/documentation- A user-facing documentation change worth mentioning in the release notesShould this PR be included in the next patch release?
Yesshould be selected for bug fixes, documentation updates, and other small changes.Noshould be selected for new features and larger changes. If you're unsure about the release classification of this PR, leave this unchecked to let the maintainers decide.What is a minor/patch release?
Bug fixes, doc updates and new features usually go into minor releases.
Bug fixes and doc updates usually go into patch releases.