/**
 * Workflow Validator
 *
 * Validates ComfyUI workflow JSON against the /object_info schema.
 * This enables "contract testing" - validating workflow structure WITHOUT
 * requiring a GPU or live ComfyUI instance.
 *
 * Key insight: ComfyUI's /object_info endpoint returns full schemas for all nodes,
 * including required inputs, types, and allowed values. We can use this to validate
 * that our workflow builders produce valid output.
 */
import type { ComfyUIObjectInfo, ComfyUIWorkflow, ValidationResult, ValidationOptions } from "./types.js";
/**
 * Validate a ComfyUI workflow against a schema.
 *
 * @param workflow - The workflow to validate
 * @param schema - The ComfyUI object_info schema
 * @param options - Validation options
 * @returns Validation result with errors and stats
 */
export declare function validateWorkflow(workflow: ComfyUIWorkflow, schema: ComfyUIObjectInfo, options?: ValidationOptions): ValidationResult;
/**
 * Load the bundled schema snapshot.
 */
export declare function loadBundledSchema(): Promise<ComfyUIObjectInfo>;
/**
 * Format validation errors for display.
 */
export declare function formatValidationErrors(result: ValidationResult): string;