# Built-In Steps This section contains information regarding built-in data processing pipeline steps listed below. For custom steps created using Squirro Script or pipelets, see [Custom Steps](../custom/index.md#pipeline-steps-custom). Built-in pipeline steps include the following: - [Enrich Pipeline Steps](enrich/index.md#data-processing-pipeline-steps-enrich) - [Relate (KEE) Pipeline Step](relate.md#pipeline-steps-relate) - [Discover (NLP Tagger) Pipeline Step](discover.md#pipeline-steps-discover) - [Classify (from AI Studio) Pipeline Step](classify.md#pipeline-steps-classify) - [Recommend Pipeline Step](recommend.md#pipeline-steps-recommend) - [Automate Pipeline Step](automate.md#pipeline-steps-automate) - [Index Steps](index/index.md#data-processing-pipeline-steps-index) - [Flow (Change Pipeline) Pipeline Step](flow.md#pipeline-steps-flow)