export declare class ObservabilityLogger {
    private logDir;
    private sessionLogPath;
    private enabled;
    private debug;
    constructor(hasDebugFlag?: boolean, override?: boolean);
    private generateSessionFileName;
    private initializeLogFile;
    logRetrieval(toolName: string, query: string, params: Record<string, unknown> | undefined, response: {
        resultCount: number;
        success: boolean;
        error?: string;
    }, results?: string): Promise<void>;
    getLogDir(): string;
    getSessionLogPath(): string;
    isEnabled(): boolean;
    static getLogDir(): string;
    static listSessions(): string[];
    static getSessionPath(fileName: string): string;
    static readSessionLog(fileName: string): string;
    static parseSessionFileName(fileName: string): Date | null;
    static formatSessionDate(fileName: string): string;
}
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