If an enemy Skye uses her Smokescreen to escape nearby, you can use your abilities to trap the Skye by dropping your Warder's Field and Impasse in the nearest available exits. She can then be quickly bursted down in a 1v1 situation.
If Skye attempts to use her ult next to you, quickly bring up your wall (impasse) to shield yourself. This might not always work, but bringing up your wall + earthen guard can make sure you survive and stay on point. Placement is key!