StepResponse

Namespace: Vercel.AI

public sealed class StepResponse : LanguageModelResponseMetadata

Response information of one step. Maps to LanguageModelResponseMetadata & { messages, body? } on StepResult.response.

Inheritance: object → LanguageModelResponseMetadata

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Constructors

StepResponse(string, DateTimeOffset, string, IReadOnlyDictionary<string, string>?, IReadOnlyList<ModelMessage>?, JsonElement?)

public StepResponse(string id, DateTimeOffset timestamp, string modelId, IReadOnlyDictionary<string, string>? headers = null, IReadOnlyList<ModelMessage>? messages = null, JsonElement? body = null)

Creates step response information.

Parameters

Name	Type	Description
id	string
timestamp	DateTimeOffset
modelId	string
headers	IReadOnlyDictionary<string, string>
messages	IReadOnlyList<ModelMessage>
body	JsonElement?

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Properties

Body

public JsonElement? Body { get; }

Response body, for providers that use HTTP and report it. It is not set for streams. Maps to body.

Value: JsonElement?

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Messages

public IReadOnlyList<ModelMessage> Messages { get; }

The response messages that were generated during the call: the assistant message of this step, then the tool message with the results the client ran. Maps to messages.

Value: IReadOnlyList<ModelMessage>

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