interface SettingsRecord extends Record<string, unknown> {
    claudeCommand?: string;
}
declare function getClaudeCommand(): {
    command: string | undefined;
    args: string[];
};
declare const _default: {
    loadSettings: (options?: {
        silent?: unknown;
    }) => SettingsRecord;
    mutateSettings: (mutator: (settings: SettingsRecord) => unknown, options?: {
        lockTimeoutMs?: number;
    }) => unknown;
    validateSetting: (key: string, value: unknown) => string | null;
    coerceValue: (key: string, value: unknown) => unknown;
    SettingsValidationError: ErrorConstructor;
    DEFAULT_SETTINGS: SettingsRecord;
    getSettingsFile: () => string;
    settingsFileExists: () => boolean;
    getClaudeCommand: typeof getClaudeCommand;
    MODEL_HIERARCHY: Readonly<Record<string, number>>;
    VALID_MODELS: readonly string[];
    validateModelAgainstMax: (requestedModel: string | null | undefined, maxModel: string, minModel?: string | null) => string;
    clearProviderDefaultsCache: () => void;
    mapLegacyModelToLevel: (model: unknown) => "level1" | "level2" | "level3" | null;
    readonly SETTINGS_FILE: string;
};
export = _default;