# API Reference


## Protocols


Protocol / structural-typing interfaces


[Adapter](Adapter.md#benchweave_sdk.Adapter)  
Structural contract for a device plugin adapter.

[HostServices](HostServices.md#benchweave_sdk.HostServices)  
Scoped host services: clocks, transport, and evidence recording.

[OperationContext](OperationContext.md#benchweave_sdk.OperationContext)  
Per-operation identity, deadline, and cancellation state.