/**
 * Request body schema validator
 *
 * Why: Catch invalid requests before sending to API. Better error messages for users.
 * Validates against OpenAPI schema definitions.
 */
import type { SchemaInfo, OperationInfo } from '../types/openapi.js';
export interface ValidationResult {
    valid: boolean;
    errors?: ValidationError[];
}
export interface ValidationError {
    path: string;
    message: string;
    schema: SchemaInfo;
    value: unknown;
}
export declare class SchemaValidator {
    /**
     * Validate request body against OpenAPI schema
     *
     * Why: Prevents sending malformed requests. OpenAPI schema is the source of truth.
     */
    validateRequestBody(operation: OperationInfo, body: unknown): ValidationResult;
    /**
     * Recursively validate data against schema
     */
    private validateAgainstSchema;
}
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