/**
 * MCP Protocol Logger
 *
 * Two separate logs:
 * 1. Communication log (mcp-protocol.jsonl) - All MCP requests/responses including handshake
 * 2. Error log (mcp-errors.jsonl) - All errors that occur during MCP operations
 *
 * - Only active when NCP_DEBUG=true
 * - Rotation settings configurable via ~/.ncp/settings.json
 * - Auto-rotates by trimming top lines (default: 2000 lines = 1000 request/response pairs)
 */
export declare class MCPProtocolLogger {
    private protocolLogPath;
    private errorLogPath;
    private enabled;
    private writeQueue;
    private rotationEnabled;
    private maxLines;
    private settingsLoaded;
    constructor();
    /**
     * Load rotation settings from global config
     */
    private loadSettings;
    /**
     * Log MCP initialize handshake (request + response)
     */
    logInitialize(clientInfo: any, serverInfo: any, protocolVersion: string): Promise<void>;
    /**
     * Log an MCP request
     */
    logRequest(method: string, params: any): Promise<void>;
    /**
     * Log an MCP response
     */
    logResponse(method: string, result: any, error?: any): Promise<void>;
    /**
     * Log an error to the error log
     */
    logError(error: any, context?: string): Promise<void>;
    /**
     * Append a line to the specified log file with rotation
     */
    private appendLine;
    /**
     * Clear the protocol log
     */
    clear(): Promise<void>;
    /**
     * Read recent protocol logs
     * @param count Number of request/response pairs to return (default: 100)
     */
    readRecent(count?: number): Promise<string>;
}
export declare const mcpProtocolLogger: MCPProtocolLogger;
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