import type { ArvoContract, VersionedArvoContract } from 'arvo-core';
import { type ArvoOrchestrationHandlerType } from './types';
/**
 * Validates that all service contracts have unique URIs.
 *
 * Ensures no duplicate contract URIs exist in the service collection.
 * Multiple versions of the same contract (same URI) are not permitted as
 * they create ambiguity in event routing and contract resolution.
 */
export declare const areServiceContractsUnique: (contracts: Record<string, ArvoContract | VersionedArvoContract<any, any>>) => {
    result: false;
    keys: [string, string];
    contractUri: string;
} | {
    result: true;
};
/**
 * Validates service contracts for orchestration handlers.
 *
 * Performs two critical validations:
 * 1. Ensures all service contracts have unique URIs (no duplicate contracts)
 * 2. Prevents circular dependencies (self contract not registered as service)
 *
 * These validations prevent configuration errors that would cause runtime
 * failures or infinite execution loops in orchestration workflows.
 */
export declare const servicesValidation: (contracts: {
    self: ArvoContract | VersionedArvoContract<any, any>;
    services: Record<string, VersionedArvoContract<any, any>>;
}, _handlerType: ArvoOrchestrationHandlerType) => void;