> ## Documentation Index
> Fetch the complete documentation index at: https://developers.techwolf.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

## Scenario

This tutorial describes how you can use custom properties within the Skill
Engine API, including:

* Creating a custom property definition for an Entity type.
* Adding custom properties for Entity objects.

This functionality is aimed at both enterprises (recruitment, outplacement,
internal mobility) and staffing & employment agency customers.

## Preparation

In this tutorial, we'll add custom properties to an Employee. We assume that
you have a set of Employees created within the system already. This step is
described in
the [vacancy matching tutorial](/tutorials/vacancy-matching/entity-creation/).