import type { OpenACPCore, Session } from '@openacp/plugin-sdk';
export interface SpawnAssistantResult {
    session: Session;
    /** The system prompt to prepend to the first real user message. */
    pendingSystemPrompt: string;
}
/**
 * Spawns an assistant session for the Discord adapter.
 * Creates a session with the default agent, sets the threadId to the given Discord thread/channel.
 * The system prompt is deferred — it will be prepended to the first real user message
 * so no unsolicited AI response is sent on startup.
 */
export declare function spawnAssistant(core: OpenACPCore, threadId: string): Promise<SpawnAssistantResult>;
/**
 * Build a welcome message summarising active sessions and available agents.
 */
export declare function buildWelcomeMessage(core: OpenACPCore): string;
/**
 * Build the system prompt for the Discord assistant session.
 * Includes current state, available agents, and action playbook.
 */
export declare function buildAssistantSystemPrompt(core: OpenACPCore): string;
/**
 * Enqueue a prompt to the assistant session.
 */
export declare function handleAssistantMessage(session: Session | null, text: string): Promise<void>;