# evaluates(_:info:recordTranscripts:) Creates a trait that runs a single evaluation and makes its result available through the current evaluation context. ``` static func evaluates(_ evaluation: any Evaluation, info: [String : String] = [:], recordTranscripts: Bool = false) -> Self ``` ## Parameters `evaluation` The evaluation to run. `info` User-defined key-value pairs attached to the result, such as model name or dataset version. `recordTranscripts` When `true`, each row’s transcript snapshot is embedded in the `.xcevalresult` attachment under the `Transcript` column. Recoverable on load via `EvaluationResult/transcriptSnapshots`. Defaults to `false` so the attachment stays small for runs that don’t need transcripts. ## Discussion ```swift let accuracyMetric = Metric("Accuracy") @Test(.evaluates(myEvaluation, info: ["model": "gpt-4"])) func testAccuracy() async throws { let result = EvaluationContext.current.result #expect(result.aggregateValue(.mean(of: accuracyMetric)) >= 0.8) } ``` --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)