/**
 * @fileoverview Shared Zod schemas used across tool inputs and resource params.
 * @module mcp-server/tools/utils/_schemas
 */
import { z } from '@cyanheads/mcp-ts-core';
/**
 * Canonical NCT identifier schema, e.g. NCT03722472. Surrounding whitespace is
 * trimmed and the value uppercased before the format check, so `nct03722472`
 * parses to `NCT03722472` — upstream resolves every casing to the same study,
 * and handlers key Sets and Maps on the canonical string. The advertised
 * `pattern` stays `^NCT\d{8}$`.
 *
 * Canonicalized with in-place string checks rather than `z.preprocess()`: a
 * preprocess is a transform, which Zod marks optional at runtime, and a union
 * over such a member is advertised without its key in `required` (#154).
 */
export declare const nctIdSchema: z.ZodString;
//# sourceMappingURL=_schemas.d.ts.map