An administrative control interface is provided that controls deployed application server plugins that operate within an application-server plugin framework deployed at a group of application servers. The administrative control interface controls dynamic adjustment of runtime application server plugin configurations that perform request-level management and server-level management of the group of application servers. Request-level application server functionality and server-level application server functionality of at least one of the group of application servers is controlled using at least one of the deployed application server plugins as specified by application-server plugin commands received from the administrative control interface.