import type { AcpSessionOptions } from '../session/acp.js';
import type { AgentSession } from '../session/types.js';
/** ACP implementation seam kept out of the harness-neutral adapter contract. */
export type AcpSessionTransport = (options: AcpSessionOptions) => Promise<AgentSession>;
export interface AcpAdapterState {
    permissionMetadataSource?: AcpSessionOptions['permissionMetadataSource'];
}
export declare function acpAdapterState(value: unknown): AcpAdapterState;