RudderStack Transformations with Rudder CLI

Overview

RudderStack transformations allow real-time event manipulation using JavaScript or Python. Libraries provide reusable code shared across transformations. Both are managed as code using YAML specs and the Rudder CLI.

Recommended Workflow

Follow this loop for every change — authoring a new transformation or library, or editing existing code. Testing locally with fixtures is the key step that distinguishes transformations work from other CLI workflows.