Sandboxed filters are Heka filter plugins that are implemented in a sandboxed scripting language. They provide a dynamic and isolated execution environment for data analysis, and allow real time access to data in production without jeopardizing the integrity or performance of the monitoring infrastructure. This broadens the audience that the data can be exposed to and facilitates new uses of the data (i.e. debugging, monitoring, dynamic provisioning, SLA analysis, intrusion detection, ad-hoc reporting, etc.)