scene-hierarchy-design SKILL.md skillA

scene-hierarchy-design 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-hierarchy-design@git:20261016.e9d6e70

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

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
summerengine/summer
Path
library/skills/scene-hierarchy-design/SKILL.md
Versions recorded
5
Latest version
git:20261016.e9d6e70, committed Oct 16, 2026
First version recorded
Oct 10, 2026
Size
9,549 bytes
Repository stars
86
License
MIT

Structure scenes by access pattern: asset vs live hierarchies, wrapper nodes, sub-scenes, path-agnostic code.

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 Hierarchy Design for Summer Engine (Data-Oriented Principles)

## Outcome

Scenes in Summer Engine that are organized by **access pattern**, not by accident: clear separation between reusable asset scenes (`.tscn` prefabs) and the live node tree, wrapper grouping where whole subtrees are operated on together, flat siblings where type-wide queries dominate, and gameplay logic that does not depend on deep fragile node paths.

## When to Use

- Structuring a new scene (level, character, prop cluster, UI screen) from scratch.
- Reorganizing a scene that has grown ad hoc (long chains, duplicate setups, hard-to-delete clusters).
- Deciding whether a setup belongs inline or as a separate sub-scene.
- Reviewing whether existing scenes match the dominant operations the game performs on them (spawn/despawn clusters, iterate all of a type, move single nodes).

Do not use this for shader/material work, asset import mechanics, or gameplay tuning — it is purely about hierarchy shape.

## Core Principle (translated)

Sander Mertens' ECS article evaluates hierarchies on two axes and both translate directly:
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add summerengine/summer/scene-hierarchy-design@sha256:d800a4b64fae3f65

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 badge

[![mdr](https://markdownregistry.com/badge/art_bjac7jhtayfrd2wm.svg)](https://markdownregistry.com/a/art_bjac7jhtayfrd2wm)

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

Versions

The registry has recorded 5 versions of this file, between Oct 10, 2026 and Oct 16, 2026, about one every 2 days.

versioncommittedcommitsizeaudit
git:20261016.e9d6e70 latest2026-10-16 e9d6e70 9,549 BA view · diff
git:20261016.75c9db42026-10-16 75c9db4 9,469 BA view · diff
git:20261015.3be1d9d2026-10-15 3be1d9d 8,152 BA view · diff
git:20261015.ee152ef2026-10-15 ee152ef 8,119 BA view · diff
git:20261010.4ade9472026-10-10 4ade947 8,161 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (9549 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

GitHub

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

API

GET https://markdownregistry.com/api/v1/artifacts/art_bjac7jhtayfrd2wm
GET https://markdownregistry.com/api/v1/resolve?ref=summerengine/summer/scene-hierarchy-design
GET https://markdownregistry.com/api/v1/blob/d800a4b64fae3f65b691b5083a90132b2bd3ba92d5c84b2f18a2e6ba5d1ed86e

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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