/**
 * @purpose Describe AI model configuration in rc-file (name, URL, optional key).
 * @consumer GennadyRc, ai-legacy
 */
export type RcModel = {
    /** @purpose Model identifier string (e.g. 'deepseek-v4-pro'). */
    model: string;
    /** @purpose Base URL of the model API endpoint. */
    url: string;
    /** @purpose Optional API key for authenticated requests. */
    key?: string;
};
/**
 * @purpose Root configuration data structure for Gennady RC (model list).
 * @consumer GennadyRc
 */
export type GennadyRcData = {
    /** @purpose List of configured AI models. */
    models: RcModel[];
};
/**
 * @purpose Load and parse Gennady configuration from rc-file in a given directory.
 * @invariant On read/parse error _error is populated; getModels() returns an empty array.
 * @sideEffect IO: file read at constructor.
 * @consumer ai-legacy, CLI agent
 */
export declare class GennadyRc {
    /** @purpose Default configuration filename. */
    static DEFAULT_FILENAME: string;
    /**
     * @purpose Create GennadyRc instances for current directory and HOME (lookup priority).
     * @returns Array of two instances: [cwd, HOME].
     * @sideEffect IO: file read at constructor.
     */
    static getDefaults(): GennadyRc[];
    /** @purpose Full path to the loaded rc config file. */
    protected _filename: string;
    /** @purpose Parsed configuration data with model list. */
    protected _data: GennadyRcData;
    /** @purpose Load/parse error if config is invalid, null otherwise. */
    protected _error: Error | null;
    /**
     * @purpose Load and parse Gennady RC config file from a directory.
     * @param [dir] Directory to look for the rc file in (defaults to cwd).
     * @param [name] Config filename (defaults to .gennadyrc).
     */
    constructor(dir?: string, name?: string);
    /**
     * @purpose Check that configuration was successfully loaded and recognized.
     * @returns true if no error; false on parse error or invalid data.
     */
    isValid(): boolean;
    /**
     * @purpose Get list of models from loaded rc.
     * @returns Array of RcModel (empty on error or missing file).
     */
    getModels(): RcModel[];
    /**
     * @purpose Get load/parse error if one occurred.
     * @returns Error or null on successful load.
     */
    getError(): Error | null;
}