/**
 * Logging utility for the MCP Codebase Index server
 */
export declare enum LogLevel {
    DEBUG = 0,
    INFO = 1,
    WARN = 2,
    ERROR = 3
}
export declare class Logger {
    private level;
    private prefix;
    constructor(level?: LogLevel, prefix?: string);
    /**
     * Set the log level
     */
    setLevel(level: LogLevel | string): void;
    /**
     * Parse log level from string
     */
    private parseLogLevel;
    /**
     * Format log message with timestamp and prefix
     */
    private format;
    /**
     * Log debug message
     */
    debug(message: string, ...args: any[]): void;
    /**
     * Log info message
     */
    info(message: string, ...args: any[]): void;
    /**
     * Log warning message
     */
    warn(message: string, ...args: any[]): void;
    /**
     * Log error message
     * Errors are always logged regardless of level
     */
    error(message: string, ...args: any[]): void;
    /**
     * Create a child logger with a prefix
     */
    child(prefix: string): Logger;
}
export declare const logger: Logger;
/**
 * Initialize logger with configuration
 */
export declare function initLogger(level: string): void;
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