import type { AgentContext, Message } from './types';
/**
 * Agent Composition — v0.8.0
 * Combine multiple agents into a pipeline: Agent A output → Agent B input.
 * Configurable in OAD: `compose: [agent-a, agent-b]`
 */
export type AgentHandler = (context: AgentContext, message: Message) => Promise<Message>;
export interface ComposableAgent {
    id: string;
    name: string;
    handler: AgentHandler;
}
export interface ComposeOptions {
    /** Stop pipeline if any agent returns empty content */
    stopOnEmpty?: boolean;
    /** Transform output between agents */
    transform?: (output: Message, nextAgentId: string) => Message;
    /** Timeout per agent in ms */
    timeoutMs?: number;
}
export declare class AgentPipeline {
    private agents;
    private options;
    constructor(agents: ComposableAgent[], options?: ComposeOptions);
    /** Run the pipeline sequentially: each agent's output becomes the next agent's input */
    execute(context: AgentContext, initialMessage: Message): Promise<Message>;
    /** Get the pipeline agent IDs in order */
    getAgentIds(): string[];
}
/**
 * Create a pipeline from an array of composable agents.
 * Usage in OAD: `compose: [agent-a, agent-b, agent-c]`
 */
export declare function compose(agents: ComposableAgent[], options?: ComposeOptions): AgentPipeline;
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