import type { ImageContent } from "@oh-my-pi/pi-ai";
import type { EvalLanguage, EvalStatusEvent, EvalView } from "@oh-my-pi/pi-tui/tools/eval";
/** Kernel-defined tool metadata exposed to task subagents. */
export interface EvalToolDescriptor {
    name: string;
    description: string;
    parameters: Record<string, unknown>;
    language: EvalLanguage;
}
/** Result of invoking a kernel-defined tool. */
export type EvalToolInvokeResult = {
    ok: true;
    value: unknown;
} | {
    ok: false;
    error: string;
};
/** Image metadata accepted at the untyped JS/Python display boundary. */
export declare function evalImageMetadata(value: unknown): Pick<ImageContent, "detail" | "providerFile" | "url">;
/**
 * Non-text output of an eval cell, from either backend:
 * - an image, sent to the model and shown to the user;
 * - a `view`: a pretty rendering of `text` the cell printed, for the user only
 *   (the model sees `text` in the output stream);
 * - a helper `status` event for the UI.
 */
export type EvalDisplayOutput = ImageContent | {
    type: "view";
    text: string;
    view: EvalView;
} | {
    type: "status";
    event: EvalStatusEvent;
};