ai/src/telemetry/tracing-channel.ts

AI SDK by Vercel - build apps like ChatGPT, Claude, Gemini, and more with a single interface for any model using the Vercel AI Gateway or go direct to OpenAI, Anthropic, Google, or any other model provider.

export const AI_SDK_TELEMETRY_TRACING_CHANNEL = 'ai:telemetry';

export type TelemetryTracingEventType =
  | 'generateText'
  | 'streamText'
  | 'step'
  | 'languageModelCall'
  | 'executeTool'
  | 'embed'
  | 'rerank';

export type TelemetryTracingChannelMessage<EVENT = unknown> = {
  readonly type: TelemetryTracingEventType;
  readonly event: EVENT;
};