AI SDK harness layer now supports native subscription authentication
The now supports authenticating harnesses through their native subscriptions, where the underlying harness supports them. The harness layer runs different coding agents through the same interface, so you can switch agents without changing your application code.AI SDK harness layerHarnessAgent No code changes or new settings are required. The authentication mode uses explicit provider environment credentials when they are present, and otherwise a native subscription found on the host. The defa
