# ToolCallEvaluator An evaluator that verifies agentic tool calls against an expected trajectory. ``` struct ToolCallEvaluator where Input : ModelSampleProtocol, Input.Expectation == TrajectoryExpectation ``` ## Overview This evaluator produces both a strict and partial result from a single evaluation pass. It also supports ordered sequences, unordered expectations, disallowed tool checks, and group steps. Use the [`toolsAllPass`](/documentation/Evaluations/Metric/toolsAllPass) and [`toolsPercentagePass`](/documentation/Evaluations/Metric/toolsPercentagePass) conveniences for the standard metrics: ```swift let evaluator = ToolCallEvaluator>( allPass: .toolsAllPass, percentagePass: .toolsPercentagePass ) ``` ## Relationships ### Conforms To [`EvaluatorProtocol`](/documentation/Evaluations/EvaluatorProtocol) [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Sendable`](/documentation/Swift/Sendable) --- 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)