/**
 * @fileoverview Shared Zod schemas reused across tool definitions.
 * @module src/mcp-server/tools/definitions/_schemas
 */
import { z } from '@cyanheads/mcp-ts-core';
/**
 * Zod string schema for a single PubMed ID. Accepts only digit characters.
 * The message is intentionally actionable so callers can self-correct without
 * inspecting the regex — names the domain, shows an example, and lists the
 * common failure modes we've seen in the wild (whitespace, comma-joined IDs,
 * stray prefixes like "PMID:").
 */
export declare const pmidStringSchema: z.ZodString;
//# sourceMappingURL=_schemas.d.ts.map