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StreamOptions

Defined in: src/models/model.ts:214

Options interface for configuring streaming model invocation.

optional cancelSignal?: AbortSignal;

Defined in: src/models/model.ts:219

Optional cancellation signal that a provider implementation can forward to abort an in-flight request. Support is provider-dependent.


optional systemPrompt?: SystemPrompt;

Defined in: src/models/model.ts:225

System prompt to guide the model’s behavior. Can be a simple string or an array of content blocks for advanced caching.


optional toolSpecs?: ToolSpec[];

Defined in: src/models/model.ts:230

Array of tool specifications that the model can use.


optional toolChoice?: ToolChoice;

Defined in: src/models/model.ts:235

Controls how the model selects tools to use.


optional modelState?: StateStore;

Defined in: src/models/model.ts:243

Runtime state for model providers that manage server-side conversation state. The model can read and write this state during streaming (e.g., to store a response ID for conversation chaining). Mutations via set/delete are visible to the caller after the stream completes.


optional dynamicTrailingBlocks?: number;

Defined in: src/models/model.ts:246

How many trailing blocks of the last user message are rebuilt on every call.