/**
 * Structural request validation at the gateway's wire doors.
 *
 * Hostile-input fuzzing showed that malformed bodies (a `model` array, a
 * `messages` string, an empty body) sailed past the doors, hit deep code, and
 * surfaced as 502 `upstream_error`s carrying raw TypeError text
 * ("requested.startsWith is not a function", "body.messages is not iterable")
 * or internal implementation details. A caller error must be a 400 in the
 * door's native error envelope, and it must never reach a provider.
 *
 * Validation here is *structural only* — field presence and JSON types
 * matching what the real providers enforce. Semantic rules (role enums,
 * schema shapes) stay with the providers, so the doors never reject a shape a
 * real provider would accept.
 */
export type WireRejection = {
    status: number;
    body: unknown;
};
import type { AnthropicRequest } from "./anthropic-wire.js";
import type { ResponsesRequest } from "./responses-wire.js";
export declare function decodeValidatedAnthropicRequest(value: unknown): AnthropicRequest;
export declare function decodeValidatedResponsesRequest(value: unknown): ResponsesRequest;
/** OpenAI Chat Completions door (`/v1/chat/completions`). */
export declare function validateChatRequest(body: unknown): WireRejection | undefined;
/** Anthropic Messages door (`/v1/messages`). */
export declare function validateAnthropicRequest(body: unknown): WireRejection | undefined;
/** Anthropic `count_tokens` door: same message-shape contract, no minimum length. */
export declare function validateCountTokensRequest(body: unknown): WireRejection | undefined;
/** OpenAI Responses door (`/v1/responses`). */
export declare function validateResponsesRequest(body: unknown): WireRejection | undefined;