/**
 * Runtime validation schema and wrapper for Anthropic Messages adapter options.
 *
 * @module @nhtio/adk/batteries/llm/anthropic_messages/validation
 *
 * @remarks
 * Schema and call-site wrapper for validating `AnthropicMessagesAdapterOptions`. Used at
 * construction time and at the start of every iteration against the merged options shape. Throws
 * `E_INVALID_ANTHROPIC_MESSAGES_OPTIONS` on failure, matching the hard-fail policy of the sibling
 * HTTP batteries.
 *
 * Note the deliberate `.unknown(...)` asymmetry: the top level is `.unknown(false)` so option typos
 * fail loud, but provider-owned passthrough blocks are `.unknown(true)` so SDK-supported additions
 * can pass through without a library bump.
 */
import type { AnthropicMessagesAdapterOptions } from "./types";
/**
 * Validator schema for `AnthropicMessagesAdapterOptions`. Used by `validateOptions` at construction
 * time and again at the start of every iteration after options have been merged. Rejects unknown
 * top-level keys so typos fail loud.
 */
export declare const anthropicMessagesOptionsSchema: import("@nhtio/validation").ObjectSchema<AnthropicMessagesAdapterOptions>;
/**
 * Validates arbitrary input against `anthropicMessagesOptionsSchema` and returns resolved options.
 * Throws `E_INVALID_ANTHROPIC_MESSAGES_OPTIONS` with validator details on failure.
 *
 * @param input - The raw options object to validate.
 * @returns The resolved options object with defaults filled in.
 */
export declare const validateOptions: (input: unknown) => AnthropicMessagesAdapterOptions;