create-custom-widget SKILL.md skillA
create-custom-widget from mendixlabs/mxcli is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mendixlabs/mxcli/create-custom-widget@git:20261010.50fe33aPins git:20261010.50fe33a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mendixlabs/mxcli
- Path
.claude/skills/mendix/create-custom-widget/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261010.50fe33a, committed Oct 10, 2026
- First version recorded
- Aug 21, 2026
- Size
- 14,099 bytes
- Repository stars
- 137
- License
- Apache-2.0
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.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
<!-- skill-index: generated by scripts/skill-index.py; make check-skill-index --> ## Find it fast `sed -n '<from>,<to>p' SKILL.md` one section rather than reading the file; `./mxcli syntax <topic>` answers *how do I write this* for a fraction of either. | lines | section | |---|---| | 31-35 | Prerequisites | | 36-117 | Step 1: Scaffold the Project | | 118-252 | Step 2: Define Widget Properties (widget.xml) | | 253-313 | Step 3: Write the Entry Component | | 314-339 | Step 4: Write the React Component | | 340-368 | Step 5: Editor Config (optional but recommended) | | 369-380 | Step 6: CSS Styles | | 381-390 | Step 7: Build | | 391-398 | Step 8: Install to Mendix Project | | 399-422 | Common Widget Patterns | | 423-435 | Checklist Before Build | | 436-443 | Troubleshooting | <!-- /skill-index --> # Create Custom Pluggable Widget Build a Mendix pluggable widget from scratch using React + TypeScript. Produces a `.mpk` file ready for Studio Pro. ## Prerequisites - Node.js >= 16 - npm ## Step 1: Scaffold the Project Create a directory and generate all source files. Use PascalCase for the widget name. ```bash mkdir -p <WidgetName>/src/components <WidgetName>/src/ui ``` …
Read the whole file at its exact version.
How to install
mdr add mendixlabs/mxcli/create-custom-widget@sha256:309c3b0e3031bf10The line at the top of this page pins the label git:20261010.50fe33a, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_q5glgnvgmmrie4vs)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Aug 21, 2026 and Oct 10, 2026, about one every 50 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261010.50fe33a latest | 2026-10-10 | 50fe33a | 14,099 B | A | view · diff |
| git:20260821.ff81a24 | 2026-08-21 | ff81a24 | 13,291 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (14099 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
mendixlabs/mxcli · 137 stars · license Apache-2.0 · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_q5glgnvgmmrie4vs GET https://markdownregistry.com/api/v1/resolve?ref=mendixlabs/mxcli/create-custom-widget GET https://markdownregistry.com/api/v1/blob/309c3b0e3031bf10efcf7f2b8a98d02bb2f352f96b8d01234baa9f7b52380297
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.