import type { RemoteTunnel } from "./tunnel.js";
import type { AdapterLogger } from "./logger.js";
/** State for an active tunnel pair (forward + optional reverse). */
export interface TunnelState {
    tunnel: RemoteTunnel;
    /** Optional reverse tunnel so remote agents can reach the host MCP endpoint. */
    reverseTunnel?: RemoteTunnel;
}
/** Per-instance registry of active tunnels, injected via {@link AdapterDependencies}. */
export declare class TunnelRegistry {
    private readonly tunnelMap;
    /** Register an active tunnel for an environment, closing any existing tunnel first. */
    register(environmentId: string, state: TunnelState, logger?: AdapterLogger): void;
    /** Get the tunnel state for an environment. */
    get(environmentId: string): TunnelState | undefined;
    /** Close and unregister the tunnel(s) for an environment. */
    close(environmentId: string): Promise<void>;
    /** Close all active tunnels (called during server shutdown). */
    closeAll(logger?: AdapterLogger): Promise<void>;
}
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