export interface McpServerConfig {
    command: string;
    args: string[];
}
export interface ConfigFile {
    mcpServers?: Record<string, McpServerConfig>;
    [key: string]: any;
}
/**
 * Read and parse a JSON config file
 */
export declare function readConfig(configPath: string): ConfigFile | null;
/**
 * Create a timestamped backup of a config file
 */
export declare function backupConfig(configPath: string): string;
/**
 * Validate that a file contains valid JSON
 */
export declare function validateConfig(configPath: string): boolean;
/**
 * Rollback config from a backup file
 */
export declare function rollbackConfig(configPath: string, backupPath: string): void;
/**
 * Update config file with MCP server configuration
 * Strategy: Read → Backup → Modify → Validate → Write (or Rollback)
 */
export declare function updateConfig(configPath: string, serverName: string, serverConfig: McpServerConfig): {
    success: boolean;
    backupPath?: string;
    error?: string;
};
/**
 * Check if a server already exists in the config
 */
export declare function serverExists(configPath: string, serverName: string): boolean;
/**
 * Check if config file is writable
 */
export declare function isConfigWritable(configPath: string): boolean;
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