import { AIError } from "../../errors/ai-error.mjs";
import { Usage } from "./usage.type.mjs";

//#region ../ai/src/contracts/result/base-result.type.d.ts
/**
 * Minimal shape every execution result satisfies. Used as the upper
 * bound on `ExecutableContract`'s `TResult` generic so the contract
 * can promise the fields every caller needs regardless of which
 * primitive ran.
 *
 * Timing metadata now lives on each primitive's `report` field (see
 * `ExecutionReport`); `duration` was removed from this base to avoid
 * two sources of truth.
 *
 * @example
 * function summarize(result: BaseResult) {
 *   console.log(`${result.usage.total} tokens, ${result.error ? "failed" : "ok"}`);
 * }
 */
type BaseResult = {
  /** Typed AI error if the execution failed, undefined on success. */error?: AIError; /** Aggregated token usage across the execution. */
  usage: Usage;
};
//#endregion
export { BaseResult };
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