import { type Asker } from "../ask.js";
import type { SetupState } from "../state.js";
import type { SetupBox } from "../step.js";
/**
 * The default model: pre-selected in the picker and baked into a one-shot
 * scaffold, where the model prompt is skipped.
 */
export declare const DEFAULT_MODEL_ID = "anthropic/claude-sonnet-4.6";
/** One model entry from the AI Gateway catalog response. */
export interface GatewayCatalogModel {
    id: string;
    name: string;
    type: string;
    owned_by: string;
    tags?: readonly string[];
}
/** Injected for tests; defaults to the real AI Gateway catalog fetch. */
export interface SelectModelDeps {
    fetchModels: () => Promise<GatewayCatalogModel[]>;
}
export interface SelectModelOptions {
    /** Resolves the model question; the composed stack decides how. */
    asker: Asker;
    /**
     * Resolve to this value without fetching the catalog or asking. Stays a
     * factory option (not a `withAnswers` rung) because a preset must keep
     * short-circuiting the catalog fetch and must keep accepting ids the
     * filtered catalog does not list, exactly as the dual-face box did.
     */
    presetModel?: string;
    /**
     * Pre-select this model in the picker so enter confirms it. Falls back to the
     * top catalog entry when omitted or not present in the catalog.
     */
    defaultModel?: string;
    deps?: SelectModelDeps;
}
/**
 * THE MODEL BOX: pick the default model baked into `agent/agent.ts`. The
 * gather fetches the AI Gateway catalog and asks one required "model" select
 * through the box's asker, so an interactive stack offers a searchable picker
 * while a headless stack refuses structurally when no preset answered it.
 * The model is the first thing the interview decides about the agent itself;
 * how the credential is wired (gateway vs your own provider key) is the
 * provisioning box's later decision, and the byok scaffold derives its
 * provider block from whatever model was picked here.
 */
export declare function selectModel(options: SelectModelOptions): SetupBox<SetupState, string, string>;
