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scene-composition SKILL.md skillB

scene-composition from summerengine/summer is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add summerengine/summer/scene-composition@git:20261016.e9d6e70

Pins git:20261016.e9d6e70 in mdr.lock. Pin the fingerprint instead.

Audit grade: B, 16 of 17 checks passed
Kind: SKILL.md skill
Repository: summerengine/summer
Path: library/skills/scene-composition/SKILL.md
Versions recorded: 5
Latest version: git:20261016.e9d6e70, committed Oct 16, 2026
First version recorded: Sep 11, 2026
Size: 9,840 bytes
Repository stars: 86
License: MIT

Scene structure: node hierarchy, when to extract sub-scenes, reusable prefabs, instance vs add node.

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

# Scene Composition for Summer Engine

Organize scenes for clarity, reuse, and MCP compatibility. Follow these conventions when building levels, characters, and UI.

## Node Hierarchy Conventions

### 3D Scenes

```
World (Node3D)                    # Root or main container
├── Camera3D                      # Main camera
├── DirectionalLight3D            # Sun / primary light
├── WorldEnvironment              # Sky, ambient, fog
├── Level (Node3D)                # Level geometry
│   ├── Ground
│   ├── Walls
│   └── Platforms
├── Props (Node3D)                # Placed objects (trees, crates)
├── Enemies (Node3D)              # Enemy instances
└── Player                        # Player instance (or instantiated)
```

### 2D Scenes

```
Level (Node2D)
├── TileMapLayer                  # Or TileMap
├── Characters
├── Props
└── Effects
```

### UI Scenes

```
CanvasLayer or Control
├── MarginContainer
│   ├── VBoxContainer
│   │   ├── Label
│   │   ├── Button
│   │   └── Button
```

## Parent Paths for MCP

Use `./` for paths relative to the scene root:

| Path | Meaning |
|------|---------|
| `./` | Scene root |
| `./World` | Child named "World" of root |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add summerengine/summer/scene-composition@sha256:79d09af09f4f50b2

The line at the top of this page pins the label git:20261016.e9d6e70, 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.

Badge

[![mdr](https://markdownregistry.com/badge/art_cgpk7hzq54t2lvua.svg)](https://markdownregistry.com/a/art_cgpk7hzq54t2lvua)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Sep 11, 2026 and Oct 16, 2026, about one every 9 days.

version	committed	commit	size	audit
git:20261016.e9d6e70 latest	2026-10-16	e9d6e70	9,840 B	B	view · diff
git:20261016.75c9db4	2026-10-16	75c9db4	9,744 B	B	view · diff
git:20261015.ee152ef	2026-10-15	ee152ef	8,842 B	B	view · diff
git:20261010.4ade947	2026-10-10	4ade947	8,883 B	B	view · diff
git:20260911.b4df358	2026-09-11	b4df358	8,894 B	B	view

Audit of the latest version

B 16 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

fail: No prompt-injection phrasing (matched: Do not tell the user)
pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (9840 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 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

Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.

Source

GitHub

summerengine/summer · 86 stars · license MIT · pushed 2026-10-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_cgpk7hzq54t2lvua
GET https://markdownregistry.com/api/v1/resolve?ref=summerengine/summer/scene-composition
GET https://markdownregistry.com/api/v1/blob/79d09af09f4f50b2d932cf7089f3366e7e7440f14f3030b3079f996b4246d9b2

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.

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