/**
 * Param / result validation helpers — Zod `safeParse` wrappers returning a
 * tagged result. Callers convert a `false` outcome into a typed error:
 * `SdkValidationError` (input, → 422) or `SdkResultValidationError`
 * (output, → 500).
 */
import type { z } from 'zod';
export type ValidationResult = {
    ok: true;
    data: Record<string, unknown>;
} | {
    ok: false;
    issues: unknown[];
};
export declare function validateParams(inputSchema: z.ZodType, params: unknown): ValidationResult;
/**
 * Result of validating a handler's output against its `outputSchema`. Unlike
 * params, an output may be any shape (object, primitive, array), so `data` is
 * `unknown` rather than `Record<string, unknown>`.
 */
export type ResultValidationResult = {
    ok: true;
    data: unknown;
} | {
    ok: false;
    issues: unknown[];
};
/**
 * Validate a handler's return value against its `outputSchema`. Mirrors the
 * kernel's `validateOutput` (`runtime/.../validation/output.ts`) so deployed
 * domains enforce the same output contract as in-process methods. Returns the
 * parsed `data` (applies Zod `default`/`transform`/coercions) on success.
 */
export declare function validateResult(outputSchema: z.ZodType, result: unknown): ResultValidationResult;
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