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rulvar API reference / @rulvar/core / ChatEvent

Type Alias: ChatEvent ​

ts
type ChatEvent = 
  | {
  text: string;
  type: "text-delta";
}
  | {
  text: string;
  type: "reasoning-delta";
}
  | {
  id: CanonicalId;
  name: string;
  type: "tool-call-start";
}
  | {
  argsTextDelta: string;
  id: CanonicalId;
  type: "tool-call-delta";
}
  | {
  args: unknown;
  id: CanonicalId;
  type: "tool-call-end";
}
  | {
  type: "usage";
  usage: Partial<Usage>;
}
  | {
  finish: FinishInfo;
  providerMetadata?: Record<string, unknown>;
  type: "finish";
  usage: Usage;
}
  | {
  error: WireError;
  type: "error";
};

Defined in: packages/core/src/l0/messages.ts:168

The single canonical stream-event vocabulary yielded by ProviderAdapter.stream. Adapters MUST emit exactly one terminal event per stream (finish or error).