import { z } from 'zod';
/**
 * What counts as data inside a Workflow definition, a run input, or a node
 * output: plain JSON, with no accessors, no prototypes, no cycles, and no
 * `__proto__`. Every schema in `model.ts` is wrapped in `normalizedSchema`, so
 * this is the gate an untrusted definition passes through before any other rule
 * reads it. It sits beside `model.ts` rather than inside it so the node schemas
 * have room to grow.
 */
export type JsonPrimitive = string | number | boolean | null;
export type JsonValue = JsonPrimitive | JsonValue[] | {
    [key: string]: JsonValue;
};
export declare const FORBIDDEN_PATH_SEGMENTS: Set<string>;
/** One dot-separated step of a binding path, an output field name, or an input
 *  key: an identifier that is safe to look up on a plain object. */
export declare const pathSegmentSchema: z.ZodString;
export declare function normalizedSchema<T extends z.ZodType>(schema: T): z.ZodPreprocess<T>;
export declare const jsonValueSchema: z.ZodPreprocess<z.ZodCustom<JsonValue, JsonValue>>;
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