1. A non-transitory computer-readable medium comprising: code that receives a request for a service from a client, the request including one or more parameters; code that identifies, as a control point associated with the service, a point within the service at which the client is permitted to modify the service; code that identifies, based at least in part upon the one or more parameters, a customization code segment that corresponds to the control point; code that loads the customization code segment into a memory of a server; code that calls the customization code segment inline during an execution of the service by: executing the service until the control point is reached; and calling and executing the customization code segment inline in response to the execution of the service reaching the control point; and code that transmits a response to the client based at least in part upon the inline call during the execution of the service.