The AI SDK requires more comprehensive error messages

[eightHundreds]

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

Lines 996 to 1004 in 1900729

	span.setError({
	message: 'Error streaming response',
	data: {
	error:
	request.tracing === true
	? String(error)
	: error instanceof Error
	? error.name
	: undefined,

For example, when the LLM provider returns an error, the span here hardcodes the error message as "Error streaming response" and sets data.error to error.name (in this case, it's AI_APICallError). However, this information is insufficient for troubleshooting and may even obscure the issue. Additionally, the error contains fields like responseBody that could aid in debugging.

I hope span.setError can record the original error object, so that I can assemble the information I need in TracingProcessor.onSpanEnd. If you're concerned about directly passing a JS object affecting the toJSON method, you could...

catch (error) {
  const errorData = {
    error: request.tracing === true
      ? String(error)
      : error instanceof Error
        ? error.name
        : undefined
  }
  Object.defineProperty(errorData, 'originalError', {
    value: error,
    enumerable: false, //  JSON.stringify will ignore originalError
    writable: true,
    configurable: true
  })
  // or
  errorData[Symbol.for('originalError')] = error;

  span.setError({
    message: 'Error streaming response',
    data: errorData
  });
}