Mendix System Module Reference

Document Mendix System module entities and implementation patterns for domain modeling.

1|Updated Jun 5, 2026
One-click install
npx skills add https://github.com/engalar/mxcli-taskdemo --skill mendix-system-module-reference
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: Mendix System Module Reference
Source: https://github.com/engalar/mxcli-taskdemo/tree/main/TaskDemo/.claude/skills/system-module
Command: npx skills add https://github.com/engalar/mxcli-taskdemo --skill mendix-system-module-reference

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill provides a comprehensive reference for the built-in Mendix System module, helping developers understand and correctly implement core functionality like user management, file handling, and workflow orchestration without guessing entity structures.

Core Features & Use Cases

  • System Entity Mapping: Detailed documentation on System.User, System.FileDocument, and workflow-related entities.
  • Best Practice Patterns: Guidance on implementing audit trails, file attachments, and workflow context objects using MDL.
  • Use Case: When building a custom document management feature, use this reference to correctly extend System.FileDocument and associate it with your application entities.

Quick Start

Ask the system module skill to explain the attributes and usage patterns for the System.WorkflowUserTask entity.

Frequently Asked Questions about Mendix System Module Reference

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I correctly extend System.FileDocument when building a document management feature in Mendix?

To extend System.FileDocument in Mendix, you must correctly use the built-in inheritance hierarchies and associate the system entity with your custom application entities to ensure robust domain modeling for file storage.

What is the correct way to implement audit trails using the Mendix System module?

Implementing audit trails in the Mendix System module involves leveraging built-in system entities and associations to track user actions, ensuring correct usage of core domain model types for robust application logic.

How do I retrieve attributes for the System.WorkflowUserTask entity in a Mendix low-code application?

Retrieving System.WorkflowUserTask attributes in a Mendix low-code application requires referencing the technical documentation for workflow-related entities to understand the exact structure for workflow automation.

Can I use built-in Mendix System entities for custom user management without guessing the domain model structure?

Yes, you can use built-in Mendix System entities for custom user management by referencing detailed documentation on System.User, which provides the correct implementation patterns for built-in types and associations.

What's the best way to associate custom domain model entities with Mendix System.FileDocument?

The best way to associate custom entities with Mendix System.FileDocument is to follow best practice patterns that correctly extend the system module's inheritance hierarchy for file handling and attachment storage.