/**
 * Environment configuration for Lisa skills.
 */
export interface IEnvConfig {
    STORAGE_MODE: 'local' | 'neo4j' | 'zep-cloud';
    GRAPHITI_ENDPOINT: string;
    NEO4J_URI: string;
    NEO4J_USER: string;
    NEO4J_PASSWORD: string;
    NEO4J_DATABASE: string;
    ZEP_API_KEY?: string;
    ZEP_BASE_URL?: string;
    LOG_LEVEL: 'debug' | 'info' | 'warn' | 'error' | 'silent';
    LOG_DIR?: string;
    LOG_CONSOLE: boolean;
    raw: Record<string, string>;
}
/**
 * Load environment configuration.
 * Merges .lisa/.env with process.env (process.env takes precedence).
 */
export declare function loadEnv(): IEnvConfig;
/**
 * Check if Zep Cloud mode is configured and has required settings.
 */
export declare function isZepCloudConfigured(env: IEnvConfig): boolean;
/**
 * Check if Neo4j direct mode is configured.
 */
export declare function isNeo4jConfigured(env: IEnvConfig): boolean;
/**
 * Check if local MCP mode is configured (default).
 */
export declare function isLocalMcpConfigured(env: IEnvConfig): boolean;
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