`toolChoice` is ignored when using a model via Vercel's AI SDK

[eapariciodev]

I'm using a non-OpenAI model via Vercel's AI SDK as outlined on this page: https://openai.github.io/openai-agents-js/extensions/ai-sdk/

The issue is that it is impossible to force the model to use a tool because the toolChoice setting is not passed to the model at all.

openai-agents-js/packages/agents-extensions/src/aiSdk.ts

Lines 423 to 439 in edf4c6b

	const aiSdkRequest: LanguageModelV1CallOptions = {
	inputFormat: 'messages',
	mode: {
	type: 'regular',
	tools,
	},
	prompt: input,
	temperature: request.modelSettings.temperature,
	topP: request.modelSettings.topP,
	frequencyPenalty: request.modelSettings.frequencyPenalty,
	presencePenalty: request.modelSettings.presencePenalty,
	maxTokens: request.modelSettings.maxTokens,
	responseFormat,
	abortSignal: request.signal,
	...(request.modelSettings.providerData ?? {}),
	};

I believe it would need to be added to mode. If I want toolChoice='required' then the SDK is expecting something like

mode: {
  ...,
  toolChoice: { type: 'required' }
}