import type { Tier, ModelRegistry } from "./types.js";
type Content = {
    type: "text";
    text: string;
};
/** Standard tool response: one JSON block, plus the upgrade note on free tier. */
export declare function respond(tool: string, tier: Tier, body: Record<string, unknown>, freeContext?: string): {
    content: Content[];
};
export declare function errorResult(tool: string, message: string): {
    content: Content[];
};
/** Accepts "TXT", "txt", "AIPI TXT GLB" and returns the stored code "AIPI TXT GLB". */
export declare function normIndexCode(input: string): string;
/** Quantile on a sorted numeric array (nearest rank, no interpolation). */
export declare function quantile(sorted: number[], q: number): number | null;
export declare function median(sorted: number[]): number | null;
/** Normalise a direction label to input | cached | output. */
export declare function dirKey(direction: string | null | undefined): "input" | "cached" | "output";
export declare function round(n: number | null | undefined, dp?: number): number | null;
export declare const MODEL_SELECT = "model_id,model_name,model_family,creator,creator_country,open_source,license_type,license_class,tier,is_reasoning,task_category,parameter_count,context_window,max_output_tokens,training_cutoff,modality_input,modality_output,tool_calling,json_mode,streaming,source_url,canonical_model_id,last_verified";
/** The anchor id a registry row belongs to. */
export declare function anchorOf(m: Pick<ModelRegistry, "model_id" | "canonical_model_id">): string;
/** Every model_id (anchor plus aliases) that belongs to the given anchors. */
export declare function expandAnchors(anchorIds: string[]): Promise<string[]>;
/**
 * Find models by name. Exact name or id matches win; otherwise a
 * partial match. Returns registry rows, anchors first.
 */
export declare function findModels(name: string, limit?: number): Promise<ModelRegistry[]>;
/** Load a vendor lookup: vendor_id -> {name, channel, country}. */
export declare function vendorLookup(): Promise<Map<string, {
    vendor_name: string;
    vendor_type: string | null;
    country: string | null;
    status: string | null;
}>>;
export {};
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