/**
 * Scampi configuration management
 *
 * Handles reading/writing ~/.scampi/config.json
 */
/**
 * Scampi configuration schema
 */
export interface ScampiConfig {
    /** LLM provider name (e.g., "zai") */
    provider: string;
    /** API key for the provider */
    apiKey: string;
    /** Model configuration */
    models: {
        /** Primary model for complex tasks (e.g., "glm-4.7") */
        primary: string;
        /** Flash model for fast tasks (e.g., "glm-4.6v-flash") */
        flash: string;
    };
    /** Maximum concurrent API requests */
    concurrency: number;
    /** Request timeout in milliseconds (default: 30000) */
    timeout?: number;
}
/**
 * Get the path to the Scampi configuration directory
 *
 * @returns Absolute path to ~/.scampi/
 */
export declare function getConfigDir(): string;
/**
 * Get the path to the Scampi configuration file
 *
 * @returns Absolute path to ~/.scampi/config.json
 */
export declare function getConfigPath(): string;
/**
 * Check if the configuration file exists
 *
 * @returns true if ~/.scampi/config.json exists, false otherwise
 */
export declare function configExists(): boolean;
/**
 * Load configuration from ~/.scampi/config.json
 *
 * @returns The loaded configuration, or null if the file doesn't exist or is invalid
 */
export declare function loadConfig(): ScampiConfig | null;
/**
 * Save configuration to ~/.scampi/config.json
 *
 * Creates the ~/.scampi directory if it doesn't exist.
 *
 * **File Permissions (Unix/Linux/macOS only):**
 * - Directory permissions: 0o700 (rwx------) - readable, writable, and executable only by the owner
 * - File permissions: 0o600 (rw-------) - readable and writable only by the owner
 *
 * These restrictive permissions protect the API key stored in the config file from being
 * read by other users on the system.
 *
 * **Windows Limitation:**
 * On Windows, the file permission modes (0o700 for directory, 0o600 for file) are set but
 * silently ignored by Node.js. Windows does not use Unix-style permission bits. To protect
 * the API key on Windows, ensure the config directory (~/.scampi) is located in your user
 * profile (typically C:\Users\<username>), which has Windows ACLs that restrict access by
 * default.
 *
 * @param config - The configuration to save
 * @throws Error if writing fails
 */
export declare function saveConfig(config: ScampiConfig): void;
/**
 * Create a default configuration template
 *
 * @returns A default ScampiConfig with placeholder values
 */
export declare function createDefaultConfig(): ScampiConfig;
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