/**
 * Effect service for MessageRouter
 *
 * This service owns routing logic directly and does not delegate to the
 * imperative MessageRouter class.
 */
import { Context, Effect, Layer } from 'effect';
import { type RoutingDecision, type RoutingConfig } from './types';
import { NoAgentsAvailableError } from './errors';
/**
 * MessageRouterService interface
 */
export interface MessageRouterService {
    route(message: string, metadata?: Record<string, unknown>): Effect.Effect<RoutingDecision, NoAgentsAvailableError>;
    testRoute(message: string, metadata?: Record<string, unknown>): Effect.Effect<RoutingDecision, NoAgentsAvailableError>;
    /**
     * Replace the active routing configuration on the live runtime.
     *
     * Routing config is mutable at the service level so changing it never
     * requires rebuilding the Effect runtime.
     */
    setConfig(config: RoutingConfig): Effect.Effect<void>;
}
export declare const MessageRouterService: Context.Tag<MessageRouterService, MessageRouterService>;
/**
 * Config tag for MessageRouterService layer construction.
 */
export declare const MessageRouterConfig: Context.Tag<RoutingConfig, RoutingConfig>;
export declare const MessageRouterServiceLive: Layer.Layer<MessageRouterService, never, never>;
export declare const MessageRouterServiceLiveWithConfig: (config: RoutingConfig) => Layer.Layer<MessageRouterService, never, never>;
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