/**
 * Summarizes Connect error detail entries (objects with type / value / debug
 * fields per the Connect JSON error model). Returns undefined when nothing
 * usable is present.
 */
export declare function summarizeConnectErrorDetails(details: unknown): string | undefined;
/**
 * True when Cursor's `aiserver.v1.ErrorDetails` entry declares the failure
 * retryable. Its JSON `debug` form carries `details.isRetryable` — set on
 * upstream outages such as ERROR_OPENAI ("Unable to reach the model
 * provider") whose bare `code: message` text (`unavailable: Error`)
 * classifies as a hard failure on its own. Other detail types are ignored
 * even when they share the `debug.details` shape.
 */
export declare function hasRetryableCursorErrorDetail(details: unknown): boolean;
/**
 * Formats a Connect end-stream error object into a diagnosable message.
 * The "Connect error code: message" prefix is preserved exactly; detail
 * entries are appended when present, and when the message itself is generic
 * the remaining trailer fields are inlined so the error names what the
 * server actually sent instead of a bare "Error".
 */
export declare function formatConnectEndStreamError(error: unknown): string;