import type { RequestAttribution } from "@velum-labs/routekit-contracts";
import type { AnthropicRequest } from "../adapters/anthropic-wire.js";
import type { WireRejection } from "../adapters/validate.js";
import { type Backend, type BackendRequest, type BackendRequestOptions } from "../providers/backend.js";
import { type CompositionalRoutingRuntime } from "../routing/eval-policy.js";
import type { EndpointAuthenticator, EndpointContext, EndpointObserver } from "./endpoint-module.js";
import { GatewayEndpoint } from "./endpoint-module.js";
export type AnthropicMessagesOperation = "messages" | "count-tokens";
type AnthropicRequestRelay = Readonly<{
    shouldRelay(headers: EndpointContext["headers"], model: string | undefined, servesLocally: (model: string) => boolean): boolean;
    relay(headers: EndpointContext["headers"], body: AnthropicRequest, signal?: AbortSignal, options?: Pick<BackendRequestOptions, "onAttribution" | "responseMode">): BackendRequest;
}>;
type AnthropicTokenCountRelay = Readonly<{
    countTokens(headers: EndpointContext["headers"], body: AnthropicRequest, signal?: AbortSignal): BackendRequest;
}>;
export type AnthropicEndpointDependencies = Readonly<{
    backend: Backend;
    compositionalRouting?: CompositionalRoutingRuntime;
    requestRelay?: AnthropicRequestRelay;
    tokenCountRelay?: AnthropicTokenCountRelay;
    rejectInvalid(context: EndpointContext, rejection: WireRejection | undefined): boolean;
    attribution(requested: string | undefined, nativeProvider?: "claude-code"): Partial<RequestAttribution>;
}>;
export declare class AnthropicMessagesEndpoint extends GatewayEndpoint<AnthropicMessagesOperation> {
    constructor(authenticate: EndpointAuthenticator, dependencies: AnthropicEndpointDependencies, observe?: EndpointObserver);
    matches(method: string, path: string): boolean;
    protected decodeOperation(context: EndpointContext): AnthropicMessagesOperation;
}
export {};