import type { JsonSchema } from "./subschemas.js";
export declare function boundedJsonValueBranches(): JsonSchema[];
export declare function isBoundedJsonValueBranches(value: unknown): boolean;
/** Writes "any JSON value" into a schema position that has no type. */
export type JsonValueWriter = (node: JsonSchema) => void;
export declare const writeBoundedJsonValue: JsonValueWriter;
/**
 * The unbounded "any JSON value" definition, for a root `$defs` entry that
 * `ref` points at. Anthropic, OpenAI and Gemini all accepted it (forced and
 * auto) through OpenRouter on 2026-10-07, and Codex keeps local `$defs`
 * references when it lowers MCP schemas.
 */
export declare function recursiveJsonValueDefinition(ref: string): JsonSchema;