import { z } from 'zod';
/**
 * Recursively parse JSON strings in a value.
 *
 * This function handles cases where nested objects are passed as JSON strings
 * (e.g., from MCP Inspector text fields or MCP clients that send nested objects as strings).
 * It only attempts to parse strings that look like JSON objects or arrays (starting with `{` or `[`).
 *
 * @param value - The value to process
 * @returns The value with any JSON strings parsed into objects/arrays
 *
 * @example
 * // String that looks like JSON is parsed
 * deepParseJsonStrings('{"mode": "shades"}') // => { mode: 'shades' }
 *
 * // Regular strings are left as-is
 * deepParseJsonStrings('hello') // => 'hello'
 *
 * // Nested objects are processed recursively
 * deepParseJsonStrings({ primary: '{"mode": "shades"}' })
 * // => { primary: { mode: 'shades' } }
 */
export declare function deepParseJsonStrings(value: unknown): unknown;
/**
 * Create a tool handler with automatic JSON string preprocessing.
 *
 * This wrapper ensures that nested objects passed as JSON strings (common when
 * using MCP Inspector) are properly parsed before schema validation.
 *
 * @param schema - The Zod schema for validating the tool's parameters
 * @param handler - The tool handler function
 * @returns A wrapped handler that preprocesses inputs before validation
 *
 * @example
 * server.registerTool(
 *   'create_custom_palette',
 *   { ... },
 *   withPreprocessing(createCustomPaletteSchema, handleCreateCustomPalette)
 * );
 */
export declare function withPreprocessing<TParams, TResult extends Record<string, unknown>>(schema: z.ZodSchema<TParams>, handler: (params: TParams) => Promise<TResult> | TResult): (params: unknown) => Promise<TResult>;