CEL Functions

Rottweiler uses the Common Expression Language (CEL) to provide a powerful and flexible way to define rules in policies.

Standard CEL Resources

Rottweiler supports the full standard CEL feature set. If you need to perform more advanced operations, we recommend these resources to get started:

• CEL Overview: The official spec and language guide.
• CEL by Example: A practical guide with examples for common use cases.

Rottweiler CEL libraries

Rottweiler automatically includes common CEL libraries. You can use standard functions like size(), has(), or collection macros like .exists() and .map() out of the box in your policies.