import type { McpServer } from '@agentclientprotocol/sdk';
import type { AcpRuntime } from './runtime.js';
import type { RuntimeSession } from './session.js';
export interface OpenOrCreateRuntimeSessionOptions {
    runtime: Pick<AcpRuntime, 'newSession' | 'loadSession'>;
    sessionId?: string | null;
    cwd?: string;
    mcpServers?: McpServer[];
    /** Defaults to true. When false, loadSession failures are always rethrown. */
    fallbackOnMissing?: boolean;
    onStatus?: (message: string) => void;
}
export interface OpenOrCreateRuntimeSessionResult {
    session: RuntimeSession;
    resumed: boolean;
    requestedSessionId: string | null;
}
/**
 * Resume a saved ACP session when possible, falling back to a fresh session only
 * when the saved id is clearly stale or missing. Transport, timeout, auth, and
 * service failures are rethrown so callers do not silently discard live recovery.
 */
export declare function openOrCreateRuntimeSession(options: OpenOrCreateRuntimeSessionOptions): Promise<OpenOrCreateRuntimeSessionResult>;
export declare function isMissingAcpSessionError(error: unknown, depth?: number, seen?: WeakSet<object>): boolean;