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mdl-entities skillA

mdl-entities is agent-read markdown (skill) from mendixlabs/mxcli: Complete syntax reference for entities, attributes and associations — every entity kind, attribute type, and association form. Use when writing or altering a domain model and the exact spelling matters..

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What the file says

# MDL Entity Syntax Reference

Complete syntax reference for creating entities, attributes, and associations.

## Entity Types

| Type | Keyword | Stored in DB | Use Case |
|------|---------|--------------|----------|
| Persistent | `create persistent entity` | Yes | Business data |
| Non-Persistent | `create non-persistent entity` | No | Temporary/view data |
| View | `create view entity` | No (OQL query) | Aggregated/computed data |

## Persistent Entity

```mdl
/**
 * Customer entity for storing customer data
 */
create persistent entity Module.Customer (
  -- String attributes
  Name: string(100) not null,
  Email: string(200),
  Code: string(20) unique,

  -- Numeric attributes
  Age: integer,
  CreditLimit: decimal,

  -- Boolean
  IsActive: boolean default true,

  -- Date/Time
  BirthDate: date,
  -- Use autocreateddate (not datetime) to record when the object was created.
  -- 'CreatedDate' as a plain datetime triggers lint error MDL020.
  CreatedDate: autocreateddate,

  -- Enumeration
  status: Module.CustomerStatus default Active,

  -- Auto-number (REQUIRES a seed via `default N` — without it the build fails
  -- CE7247 "Value cannot be empty")
…

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A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
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Source

GitHub

mendixlabs/mxcli · 124 stars · license Apache-2.0 · pushed 2026-09-24 · branch main

API

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