Skill Claude CodeCodex
Make a Mendix app look designed rather than default-Atlas: layout, spacing, typography, colour and design properties that reach a finished standard. Use when asked to make an app look professional, branded or less bland, when styling pages, or when matching a design mock.
Skill Claude CodeCodex
Provision a Mendix project in a repo that has none — interview, mxcli new, session hook, project brief, first commit and boot. Use when the repository is empty or has no .mpr yet, typically from the empty-repo seed prompt.
Skill Claude CodeCodex
Discover the external services a project consumes and browse their cached contracts through the MDL CATALOG — OData entities and actions, REST clients and operations, AsyncAPI channels and messages. Use when asked what integrations exist, what an OData service offers, or what a business-event contract contains.
Skill Claude CodeCodex
Discover and bulk-change widget properties across many pages with SHOW WIDGETS and UPDATE WIDGETS. Use when the same widget setting has to change on many pages at once. Experimental — always DRY RUN first and back the project up.
Skill Claude CodeCodex
Define event-driven APIs over Kafka with Mendix business event services — publish and subscribe contracts, CREATE/DROP/DESCRIBE. Use when building publish/subscribe integration between apps, or inspecting the business event services a project already has.
Skill Claude CodeCodex
Search the Mendix Catalog platform service registry (catalog.mendix.com) from the CLI to find services published across an organisation. Use when looking for an existing published service to consume. This is the external registry, not the MDL CATALOG keyword — for that see browse-integrations.
Skill Claude CodeCodex
Quick fixes for the MDL syntax errors that come up most: undeclared variables, wrong retrieve source, list operations, expression mistakes. Use when mxcli check reports an error and you want the fix rather than the reference.
Skill Claude CodeCodex
One-page reference for declaring and assigning variables in MDL microflows — every type, with the exact syntax. Use when writing a declare and unsure of the spelling, or when a declaration error needs fixing fast.
Skill Claude CodeCodex
Validate MDL with mxcli check before presenting or executing it, including reference resolution against a project. Use ALWAYS before showing MDL to a user, running mxcli exec, or committing a .mdl file — exec refuses exactly what check rejects.
Skill Claude CodeCodex
Fetch data from a RapidMiner graph mart or any SPARQL 1.1 HTTP endpoint (AnzoGraph and friends) and surface it as Mendix entities. Use when a graph database with a SPARQL endpoint has to feed a Mendix app read-only.
Skill Claude CodeCodex
Build a Mendix pluggable widget from scratch with React and TypeScript and package it as an .mpk. Use when no marketplace or built-in widget covers what is needed and a custom React component has to be written.
Skill Claude CodeCodex
CREATE PAGE syntax reference — parameters, variables, layouts, and the full widget vocabulary. Use before writing any CREATE PAGE statement, or when a widget's property spelling needs checking.
Skill Claude CodeCodex
MDL syntax for pluggable widgets in CREATE PAGE / ALTER PAGE — GALLERY, COMBOBOX, DataGrid2 and third-party widgets: datasource and column forms, child slots (TEMPLATE/FILTER), adding a widget via .def.json, and the engine internals. Use when placing a pluggable widget on a page, or when mxcli widget describe output…
Skill Claude CodeCodex
Connect a Mendix app to an external database over JDBC with the External Database Connector, and define the queries microflows run against it. Use when the app must read or write Oracle, PostgreSQL, MySQL or SQL Server directly from a microflow.
Skill Claude CodeCodex
Diagnose BSON serialization problems in the MPR file — missing properties, wrong storage names, widget definitions Studio Pro rejects. Use when something created through MDL does not appear correctly in Studio Pro, or when a CE error points at a document mxcli wrote.
Skill Claude CodeCodex
Drive the Mendix runtime's microflow and nanoflow debugger from the command line with mxcli debug — breakpoints by name, variable inspection, step and continue. Use when a microflow produces the wrong result and reading it is not enough.
Skill Claude CodeCodex
Seed a Mendix app's PostgreSQL database directly, bypassing the runtime — Mendix's internal ID system, association storage, and bulk import from an external database. Use when populating test or demo data, when data is needed before the UI exists, or for imports too large for the runtime.
Skill Claude CodeCodex
Build, run and validate a Mendix app in Docker from inside a devcontainer. Use when asked to run the app in Docker or produce a deployable image. For the faster Docker-free loop, prefer run-local.
Skill Claude CodeCodex
The full lifecycle of Mendix Marketplace modules and widgets from the CLI — search, download, install, detect local edits, and update. Use when adding a marketplace module or widget, upgrading one, or asking what an upgrade would overwrite.
Skill Claude CodeCodex
Define reusable widget groups with DEFINE FRAGMENT and place them with USE FRAGMENT. Use when the same widget pattern repeats across pages and should be written once.
Skill Claude CodeCodex
Generate a complete Mendix domain model in MDL — entities, attributes, associations, enumerations — and validate it. Use when asked for a domain model for a business area (e-commerce, HR, CRM, …) rather than a single entity.
Skill Claude CodeCodex
Query the project as a dependency graph to assess the blast radius of a change, find dead or risky elements, and evaluate module health. Use when planning a refactor, judging what a change will break, or looking for unused documents.
Skill Claude CodeCodex
Create and call custom Java actions — extending Mendix with server-side Java, and invoking those actions from microflows in MDL. Use when logic needs a Java library, an algorithm microflows cannot express, or an integration only available in Java.
Skill Claude CodeCodex
Add, update, remove and audit a module's Maven/JAR dependencies in MDL — Studio Pro's Module Settings → Java dependencies tab. Use when a Java action needs an external library, when bumping a library version, or when auditing which modules pull what.