DecideRequest

Namespace: Vercel.AI.Operations

public sealed class DecideRequest : OperationRequest

Options for CancellationToken).

Inheritance: object → OperationRequest

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Properties

MaxOutputTokens

public double? MaxOutputTokens { get; set; }

Maximum output tokens for supported models. Must be an integer of at least 1 when set.

Value: double?

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Model

public IDecisionCaller? Model { get; set; }

Explicit decision model. Wins over ModelId when both are set.

Value: IDecisionCaller

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ModelId

public string? ModelId { get; set; }

Decision model id, used when Model is null. It goes through DefaultProvider, or Gateway when none is set.

Value: string

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OnEnd

public Func<DecideEvent, Task>? OnEnd { get; set; }

Called when the decision completes. Receives the full runtime context.

Value: Func<DecideEvent, Task>

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OnStart

public Func<DecideEvent, Task>? OnStart { get; set; }

Called when the decision begins. Receives the full runtime context.

Value: Func<DecideEvent, Task>

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Questions

public IReadOnlyDictionary<string, DecisionQuestion>? Questions { get; set; }

Nonempty question map.

Value: IReadOnlyDictionary<string, DecisionQuestion>

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Reasoning

public string? Reasoning { get; set; }

Reasoning effort for supported models: provider-default, none, minimal, low, medium, high, xhigh, or max. Language-model adapters default to none; provider-default uses the wrapped language model’s own default instead. Native decision providers return an unsupported-setting warning.

Value: string

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State

public DecisionState? State { get; set; }

Shared state: a string, a JSON object, or a list of parts. A JSON array is not valid state. Wrap it in an object or in a DecisionJsonPart. See DecisionState.

Value: DecisionState

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Telemetry

public DecideTelemetry? Telemetry { get; set; }

Telemetry. Generic operation callbacks on the integration are not called.

Value: DecideTelemetry

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