/**
 * Configuration Manager for MAMA Standalone
 *
 * Manages YAML configuration file at ~/.mama/config.yaml
 */
import type { MAMAConfig, MultiAgentConfig } from './types.js';
/**
 * Initialize config: load from disk, apply env overrides, and cache.
 * Call once at startup (e.g., in mama start).
 */
export declare function initConfig(): Promise<MAMAConfig>;
/**
 * Get the cached config synchronously.
 * Throws if initConfig() hasn't been called, catching initialization order bugs early.
 */
export declare function getConfig(): MAMAConfig;
/**
 * Override config values at runtime (shallow merge into cache).
 * Does NOT persist to disk — use saveConfig() for that.
 */
export declare function overrideConfig(overrides: Partial<MAMAConfig>): MAMAConfig;
/**
 * Reset cached config (for testing).
 * @param useDefaults - If true, set cache to DEFAULT_CONFIG instead of null.
 */
export declare function resetConfigCache(useDefaults?: boolean): void;
/**
 * Error thrown when config validation fails.
 * Contains all validation errors and resolution guidance.
 */
export declare class ConfigValidationError extends Error {
    readonly errors: string[];
    readonly configPath: string;
    constructor(errors: string[], configPath: string);
}
/**
 * Expand ~ to home directory
 */
export declare function expandPath(path: string): string;
/**
 * Get the full path to config file
 */
export declare function getConfigPath(): string;
/**
 * Get the MAMA home directory
 */
export declare function getMAMAHome(): string;
/**
 * Check if config file exists
 */
export declare function configExists(): boolean;
/**
 * Load configuration from file
 *
 * @returns Configuration object
 * @throws Error if config file doesn't exist or is invalid
 */
export declare function loadConfig(): Promise<MAMAConfig>;
/**
 * Save configuration to file
 *
 * @param config - Configuration object to save
 */
export declare function saveConfig(config: MAMAConfig): Promise<void>;
/**
 * Create default configuration file
 *
 * @param overwrite - Whether to overwrite existing config
 * @returns Path to created config file
 * @throws Error if config exists and overwrite is false
 */
export declare function createDefaultConfig(overwrite?: boolean): Promise<string>;
/**
 * Validate configuration
 *
 * @param config - Configuration to validate
 * @returns Array of validation errors (empty if valid)
 */
export declare function validateConfig(config: MAMAConfig): string[];
/**
 * Get the default multi-agent configuration (disabled by default)
 */
export declare function getDefaultMultiAgentConfig(): MultiAgentConfig;
/**
 * Provision default persona templates and multi-agent config on first start.
 *
 * - Copies builtin persona .md files from templates/personas/ to ~/.mama/personas/
 *   only if the personas directory does not yet exist.
 * - Injects a default (disabled) multi_agent section into config.yaml
 *   only if one is not already present.
 */
export declare function provisionDefaults(): Promise<void>;
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