/**
 * Agent Spec Validator
 *
 * Validates workflows against Agent Spec constraints for export,
 * and validates imported Agent Spec documents for correctness.
 */
import type { AgentSpecFlow } from '../../types/agentspec.js';
import type { StandardWorkflow } from '../WorkflowAdapter.js';
/** Validation result */
export interface AgentSpecValidationResult {
    valid: boolean;
    errors: string[];
    warnings: string[];
}
/**
 * Validate a FlowDrop StandardWorkflow for Agent Spec export compatibility.
 *
 * Checks:
 * - Must have exactly 1 start node (terminal/triggers)
 * - Must have at least 1 end node (terminal/outputs)
 * - Gateway nodes must have branches defined
 */
export declare function validateForAgentSpecExport(workflow: StandardWorkflow): AgentSpecValidationResult;
/**
 * Validate an imported Agent Spec Flow document.
 *
 * Checks:
 * - Has a start_node reference that exists
 * - At least one end_node exists
 * - All edge references point to existing nodes
 * - BranchingNode has branches
 * - Data flow edges reference valid properties
 */
export declare function validateAgentSpecFlow(flow: AgentSpecFlow): AgentSpecValidationResult;