import type { ErrorCode } from "@opengeni/contracts";
import { HTTPException } from "hono/http-exception";
type ApiHttpErrorOptions = {
    code: ErrorCode;
    message: string;
    retryable?: boolean;
    outcomeUnknown?: boolean;
    details?: Record<string, unknown>;
};
/** A public, structured API failure whose message and details are safe for clients. */
export declare class ApiHttpError extends HTTPException {
    readonly code: ErrorCode;
    readonly retryable: boolean | undefined;
    readonly outcomeUnknown: boolean | undefined;
    readonly details: Record<string, unknown> | undefined;
    constructor(status: number, options: ApiHttpErrorOptions);
}
/**
 * A request-scoped session/workspace mutation could not enter the workspace
 * control prefix within its bounded wait. The transaction rolled back before
 * any write, so the outcome is known and the client may retry. `app.onError`
 * applies this once for every route; Slack interactions keep the raw typed
 * error so their retry classifier treats it as transient.
 */
export declare function workspaceControlBusyHttpError(error: unknown): ApiHttpError | null;
export {};