import type { AIProvider } from "./types.js";
/** Gateway providers that prefix invoke-time wire ids (`openrouter/openai/gpt-5.5`). */
export declare const GATEWAY_PROVIDERS: readonly ["openrouter"];
export type GatewayProvider = (typeof GATEWAY_PROVIDERS)[number];
export interface NormalizedGatewayWireId {
    provider: GatewayProvider;
    modelId: string;
}
export declare function isGatewayProvider(value: string): value is GatewayProvider;
/**
 * Split a gateway-prefixed wire id into `{ provider, modelId }`.
 * `openrouter/openai/gpt-5.5` → `{ provider: "openrouter", modelId: "openai/gpt-5.5" }`.
 *
 * Profile keys like `cheap/default` are not gateway wires (first segment is not a gateway provider).
 */
export declare function normalizeGatewayWireId(input: string): NormalizedGatewayWireId | null;
/** Whether `input` is a gateway wire id (not a vendor slug like `google/gemini-2.5-flash-lite`). */
export declare function isGatewayWireId(input: string): boolean;
export declare function formatGatewayWireId(provider: GatewayProvider, modelId: string): string;
/** Invoke-time provider after gateway normalization (openrouter stays openrouter). */
export declare function gatewayInvokeProvider(provider: string): AIProvider;
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