/**
 * ConfigManager provides surgical config file modification using jsonc-parser.
 * Preserves comments, formatting, and supports JSON/JSONC files.
 */
export declare class ConfigManager {
    /**
     * Reads and parses a JSON/JSONC configuration file.
     * @param filePath - Path to the configuration file
     * @returns Parsed configuration object
     * @throws Error if file not found or contains invalid JSON
     */
    readConfig(filePath: string): Promise<any>;
    /**
     * Writes content to a file atomically using write-then-rename pattern.
     * Creates parent directories if they don't exist.
     * @param filePath - Path to write the file
     * @param content - Content to write
     * @throws Error if write fails (permissions, disk full, etc.)
     */
    writeConfig(filePath: string, content: string): Promise<void>;
    /**
     * Surgically modifies a value at the specified path in a config file.
     * Preserves comments, formatting, and other content.
     * @param filePath - Path to the configuration file
     * @param path - Array of property names/indexes representing the path to the value
     * @param value - New value to set at the specified path
     * @throws Error if file not found or modification fails
     */
    modifyConfig(filePath: string, path: string[], value: any): Promise<void>;
}
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