export type WebhookEvent = 'agent_online' | 'agent_offline' | 'agent_idle' | 'loop_start' | 'loop_complete' | 'task_start' | 'task_done' | 'task_fail' | 'task_progress' | 'task_checkin' | 'task_output' | 'all_tasks_done' | 'rate_limit' | 'reauth_required' | 'claude_output';
export declare class WebhookClient {
    private readonly baseUrl;
    private readonly apiKey;
    private readonly contextId;
    private currentTaskId;
    private currentArtifactId;
    private meta;
    private _wsSender;
    constructor(baseUrl: string, apiKey: string, contextId?: string);
    setMeta(meta: Record<string, unknown>): void;
    /**
     * Provide a WebSocket sender function. When set and connected, events will
     * be sent over the WS connection instead of HTTP POST — avoiding the
     * mismatch of POSTing to a ws:// URL.
     */
    setWsSender(sender: (frame: unknown) => boolean): void;
    send(event: WebhookEvent, payload?: Record<string, unknown>): void;
    private toStreamResponse;
    private buildMessage;
}
export interface DiscordEmbed {
    title?: string;
    description?: string;
    color?: number;
    footer?: {
        text: string;
    };
}
/**
 * Send a message via the Discord bot REST API.
 * Uses `Authorization: Bot {token}` targeting a specific channel.
 * Fire-and-forget.
 */
export declare function sendDiscordBotMessage(botToken: string, channelId: string, content: string): void;
/** POST a message to a plain Discord webhook URL. Fire-and-forget. */
export declare function sendDiscordWebhook(webhookUrl: string, content: string, embed?: DiscordEmbed): void;