melonjs-getting-started SKILL.md skillA
melonjs-getting-started from melonjs/melonjs is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add melonjs/melonjs/melonjs-getting-started@git:20261102.8d1fb28Pins git:20261102.8d1fb28 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- melonjs/melonjs
- Path
packages/melonjs/skills/melonjs-getting-started/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261102.8d1fb28, committed Nov 2, 2026
- First version recorded
- Aug 31, 2026
- Size
- 7,012 bytes
- Repository stars
- 6,441
- License
- MIT
Use this skill when starting or bootstrapping a melonJS game, creating the Application, choosing a renderer, or setting up the first scene. Covers the mandatory async init, the world container, adding renderables, and the WebGPU/WebGL 2/Canvas fallback. Triggers on: melonjs, new Application, app.init, app.world, video.AUTO, video.WEBGL, video.CANVAS, Stage, state.change, getting started, bootstrap.
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
# Getting started with melonJS
> Bootstrapping a melonJS 20.x game: the `Application` lifecycle, the mandatory
> `await app.init()`, the world container, and what the renderer fallback means
> for feature availability.
**Applies to:** melonJS 20.x. Older major versions differ — see the
`melonjs-20-migration` skill.
## The bootstrap
`Application` construction is synchronous but **initialisation is not**. `init()`
returns a promise and must be awaited before building any renderable, loading
assets, or entering a scene.
```js
import { Application, Text } from "melonjs";
const app = new Application(1218, 562, {
parent: "screen", // id of the DOM element to mount into
scale: "auto",
backgroundColor: "#202020",
});
await app.init(); // ← REQUIRED. Nothing below works without it.
app.world.addChild(
new Text(609, 281, {
font: "Arial",
size: 160,
fillStyle: "#FFFFFF",
textAlign: "center",
textBaseline: "middle",
text: "Hello World !",
}),
);
```
**This is the single most common thing to get wrong.** On 19.x the constructor
called `init(width, height, options)` for you; on 20.x `init()` takes no
…Read the whole file at its exact version.
How to install
mdr add melonjs/melonjs/melonjs-getting-started@sha256:8ccc74e2abad1556The line at the top of this page pins the label git:20261102.8d1fb28, 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_5w5o243nbndlancp)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Aug 31, 2026 and Nov 2, 2026, about one every 63 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261102.8d1fb28 latest | 2026-11-02 | 8d1fb28 | 7,012 B | A | view · diff |
| git:20260831.8e2f9be | 2026-08-31 | 8e2f9be | 7,035 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 (7012 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
melonjs/melonjs · 6,441 stars · license MIT · pushed 2026-11-06 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_5w5o243nbndlancp GET https://markdownregistry.com/api/v1/resolve?ref=melonjs/melonjs/melonjs-getting-started GET https://markdownregistry.com/api/v1/blob/8ccc74e2abad15561b801ef8e4e158be835569ac7d8fa7863289fc6417908747
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