- Language Specification
- Builtin Functions and Variables
- edit: API for the Interactive Editor
- epm: The Elvish Package Manager
- file: File Utilities
- math: Math Utilities
- path: Filesystem Path Utilities
- platform: Information About the Platform
- re: Regular Expression Utilities
- readline-binding: Readline-like Key Bindings
- store: API for the Elvish Persistent Data Store
- str: String Manipulation
- unix: Support for UNIX-like systems