At the moment there is no consistent configuration to add client side interceptors.
For a standalone client the "JAVA service loader" can be used.
Inside the server the behaviour is not consistent as by default it is only available for remote interfaces if a jboss-ejb-client.xml is added to the deployment, nevertheless whether there are outbound-connections or not.
For invocations with local interfaces it is not possible to add an interceptor.

The configuration should be possible consistent for all invocations, and possible differ between local/remote.
Also the interceptors should be invoked if a specific InitialContext is used.