feat(framework): add classifier support to Eval#282
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Abhijeet Prasad (AbhiPrasad) merged 1 commit intomainfrom Apr 15, 2026
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feat(framework): add classifier support to Eval#282Abhijeet Prasad (AbhiPrasad) merged 1 commit intomainfrom
Abhijeet Prasad (AbhiPrasad) merged 1 commit intomainfrom
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Add a new `classifiers` parameter to `Eval`/`EvalAsync`/`Evaluator` that runs classification functions alongside scorers. Classifier results are recorded under a dedicated `classifications` field on `EvalResult` and logged to classifier-typed spans. Key changes: - New `Classification` and `ClassificationItem` types in `score.py` - `EvalClassifier` callable type and `OneOrMoreClassifications` union - `SpanTypeAttribute.CLASSIFIER` span type - Classifier results aggregated per-name in the root span - `scores` is now optional when `classifiers` is provided - Devserver and push CLI updated to propagate classifier metadata - Tests covering classifier-only, mixed, multi-classification, and span logging behavior
Abhijeet Prasad (AbhiPrasad)
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Luca Forstner (lforst)
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Abhijeet Prasad (AbhiPrasad)
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Add a new
classifiersparameter toEval/EvalAsync/Evaluatorthat runs classification functions alongside scorers. Classifier results are recorded under a dedicatedclassificationsfield onEvalResultand logged to classifier-typed spans.Based on JS PR: braintrustdata/braintrust-sdk-javascript#1553
and the spec: https://github.com/braintrustdata/braintrust-spec/blob/main/docs/telemetry/classifier.md