export type SddModeDefault = "guided" | "non-interactive" | "beginner";
export type SddProviderDefault = "gemini" | "codex" | "auto";
export type SddConfig = {
    workspace: {
        default_root: string;
    };
    ai: {
        preferred_cli: SddProviderDefault;
        model: string;
    };
    mode: {
        default: SddModeDefault;
    };
    git: {
        publish_enabled: boolean;
    };
};
export declare function configPath(): string;
export declare function defaultConfig(): SddConfig;
export declare function loadConfig(): SddConfig;
export declare function saveConfig(config: SddConfig): string;
export declare function ensureConfig(): SddConfig;
export declare function updateConfigValue(key: string, value: string): SddConfig | null;