/**
 * Opt-in install telemetry for ai-eng-system CLI.
 * Writes anonymized JSONL to ~/.ai-eng/telemetry.jsonl.
 * No PII, no project paths, no file contents.
 */
export interface InstallTelemetryEvent {
    event: "install";
    timestamp: string;
    version: string;
    platform: string;
    scope: string;
    command_count: number;
    agent_count: number;
    skill_count: number;
    tool_count: number;
}
export interface BuildTelemetryEvent {
    event: "build";
    timestamp: string;
    version: string;
    target: string;
    plugin_groups: string[];
}
export type TelemetryEvent = InstallTelemetryEvent | BuildTelemetryEvent;
export declare function isTelemetryEnabled(): boolean;
export declare function optOutTelemetry(): void;
export declare function appendTelemetryEvent(event: TelemetryEvent): void;
export declare function readTelemetry(): TelemetryEvent[];