import type { INodeType, INodeTypeDescription, ISupplyDataFunctions, SupplyData } from 'n8n-workflow';
export interface SubAgentUsage {
    prompt_tokens: number;
    completion_tokens: number;
    total_tokens: number;
    iterations: number;
}
export interface SubAgentResult {
    response: string;
    usage: SubAgentUsage;
}
export interface SubAgentContext {
    task: string;
    /** Conversation history injected by the orchestrator (for stateless agents). */
    history?: Array<{
        role: 'user' | 'assistant';
        content: string;
    }>;
    /** Arbitrary state passed from the orchestrator (CRM data, contact info, etc.). */
    state?: Record<string, unknown>;
}
export interface SubAgentAction {
    action: string;
    description: string;
}
export interface SubAgent {
    name: string;
    description: string;
    /** When true the agent uses orchestrator-provided history; it does not maintain its own session state. */
    stateless: boolean;
    /** Declared output actions — routing and terminal values this agent can return. */
    actions: SubAgentAction[];
    /** JSON key for the user-facing message in the agent output (e.g. "content_raw"). */
    outputContentKey: string;
    /** JSON key for the routing/instructions block in the agent output (e.g. "routing"). */
    outputInstructionsKey: string;
    call: (context: SubAgentContext, sessionId: string) => Promise<SubAgentResult>;
}
export declare class SubAgentKit implements INodeType {
    description: INodeTypeDescription;
    supplyData(this: ISupplyDataFunctions): Promise<SupplyData>;
}
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