From CommonJS Spec Wiki

Language and Runtime Services

This API provides information about the JavaScript interpreter and its environment.

Prior Art

• Ejscript has an "ejs.sys" module that provides a set of classes for system level activities such as Debug control, GC management, Memory resource utilization and command execution
• The JSAPI is the C API for the SpiderMonkey JavaScript engine https://developer.mozilla.org/En/SpiderMonkey/JSAPI_Reference
• Flusspferd's flusspferd module
• Python's sys module has some of this kind of information for Python.