A remote execution request is received from a client, specifying first and second remote execution tools and execution data pertaining to the tools and comprising a query to select host machines. First and second host machines are selected in view of a result of the query and the first and second tools. A script is generated in view of the execution data and first metadata describing components of the host machines. A plurality of execution proxy machines are selected in view of the first and second hosts. A first template associated with the first tool and a second template associated with the second tool are generated in view of the script. The first template and the second template are transmitted to first and second execution proxy machines, respectively. Outputs from remote execution of the templates are received from the first and second hosts and transmitted to the client.