/**
 * Logger that writes exclusively to stderr — safe for stdio MCP transport.
 * console.log is FORBIDDEN in stdio servers as it corrupts JSON-RPC messages.
 */
export declare const logger: {
    info: (msg: string, ...args: unknown[]) => void;
    warn: (msg: string, ...args: unknown[]) => void;
    error: (msg: string, ...args: unknown[]) => void;
    debug: (msg: string, ...args: unknown[]) => void;
};
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