# Reference

The **reference** has nitty-gritty technical descriptions of how Tenzir works. Its is most useful when you need detailed information about Tenzir’s building blocks.

## Contents

- [Language (TQL)](https://preview.docs.tenzir.com/375/reference/types.md)
- [Tools](https://preview.docs.tenzir.com/375/reference/test-framework.md)
- [Authentication](https://preview.docs.tenzir.com/375/reference/aws-authentication.md)