---
title: "SIL Engine"
canonical: "https://support.appfire.com/space/PSJ/15486337/SIL%20Engine"
format: markdown
---
> Macro (aura-html)

The SIL Engine was developed in response to customer requests for more flexible and maintainable customization options for Atlassian products. Traditional scripting solutions required extensive programming knowledge and often broke during upgrades, creating maintenance challenges for administrators.

The Simple Issue Language (SIL) was designed specifically to address these pain points by providing a domain-specific language focused on solving common Atlassian customization needs while remaining resilient to product upgrades.

### Current state

Today, the SIL Engine has matured into a comprehensive platform for extending Atlassian products with powerful custom functionality. Today, the SIL Engine has matured into a comprehensive platform for extending Atlassian products with powerful custom functionality. The original goals of simplifying customization while maintaining upgrade compatibility have been achieved, with continual improvements to the language and tools over time.

### Key features

- Variable resolvers that can extract and manipulate Jira issue fields
- Independence from Jira's internal architecture.
- Ability to connect with other systems through connector modules.