axiom-scenekit

axiom-scenekit is a skill for Claude Code, Codex from ComeOnOliver/skillshub. It costs 50 tokens per session (4,419 once invoked), scanned A, original, MIT.

A development guide for SceneKit, Apple’s framework for creating and displaying 3D scenes, including legacy code maintenance and migration to RealityKit.

In plain words
What is it for?
Use it for SceneKit scenes, materials, lighting, physics, animation, SwiftUI integration, 3D model loading, and migration planning.
Why use it?
It helps maintain existing SceneKit apps while clarifying when and how to move newer work to Apple’s current 3D framework.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for SceneKit scenes, materials, lighting, physics, animation, SwiftUI integration, 3D model loading, and migration planning.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/comeonoliver/skillshub/axiom-scenekit
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add ComeOnOliver/skillshub --skill axiom-scenekit
Clone the repo
git clone --depth 1 https://github.com/ComeOnOliver/skillshub

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for axiom-scenekit

README.md
[![agentmods](https://agentmods.dev/badge/skills/comeonoliver/skillshub/axiom-scenekit/github.svg)](https://agentmods.dev/skills/comeonoliver/skillshub/axiom-scenekit)
Your own site
<a href="https://agentmods.dev/skills/comeonoliver/skillshub/axiom-scenekit"><img src="https://agentmods.dev/badge/skills/comeonoliver/skillshub/axiom-scenekit/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for axiom-scenekit

Your own site · 80×15
<a href="https://agentmods.dev/skills/comeonoliver/skillshub/axiom-scenekit"><img src="https://agentmods.dev/badge/skills/comeonoliver/skillshub/axiom-scenekit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,419 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00050 $0.04419
Opus 5 $0.00025 $0.02210
Sonnet 5 $0.00010 $0.00884
Haiku 4.5 $0.00005 $0.00442

Measured 9d ago against content hash cae48a23d661, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

axiom-scenekit scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/CharlesWiltgen/Axiom/axiom-scenekit/SKILL.md · 552 lines

How it starts

The opening of the file, as written. The whole thing — 552 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SceneKit Development Guide

Purpose: Maintain existing SceneKit code safely and plan migration to RealityKit iOS Version: iOS 8+ (SceneKit), deprecated iOS 26+ Xcode: Xcode 15+

When to Use This Skill

Use this skill when:

  • Maintaining existing SceneKit code
  • Building a SceneKit prototype (with awareness of deprecation)
  • Planning migration from SceneKit to RealityKit
  • Debugging SceneKit rendering, physics, or animation issues
  • Integrating SceneKit content with SwiftUI
  • Loading 3D models via Model I/O or SCNSceneSource

Do NOT use this skill for:

  • New 3D projects (use axiom-realitykit)
  • AR experiences (use axiom-realitykit)
  • visionOS development (use axiom-realitykit)
  • SpriteKit 2D games (axiom-spritekit)
  • Metal shader programming (axiom-metal-migration-ref)

Deprecation Context

SceneKit is soft-deprecated as of iOS 26 (WWDC 2025). This means:

  • Existing apps continue to work
  • No new features or general bug fixes
  • Only critical security patches
  • SceneView (SwiftUI) is formally deprecated in iOS 26

Apple's forward path is RealityKit. All new 3D projects should use RealityKit. SceneKit knowledge remains valuable for maintaining legacy code and understanding concepts during migration.

In RealityKit: ECS architecture replaces scene graph. See axiom-scenekit-ref for the complete concept mapping table.


1. Mental Model

Scene Graph Architecture

SceneKit uses a tree of nodes (SCNNode) attached to a root node in an SCNScene. Each node has a transform (position, rotation, scale) relative to its parent.

SCNScene
└── rootNode
    ├── cameraNode (SCNCamera)
    ├── lightNode (SCNLight)
    ├── playerNode (SCNGeometry + SCNPhysicsBody)
    │   ├── weaponNode
    │   └── particleNode (SCNParticleSystem)
    └── environmentNode
        ├── groundNode
        └── wallNodes

In RealityKit: Entities replace nodes. Components replace node properties. The hierarchy concept persists, but behavior is driven by Systems rather than node callbacks.

Read the full file on GitHub · 552 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 552 lines · 50 tokens per session scan A cae48a23d661

Subscribe to this mod's changes

axiom-scenekit is a skill published in the GitHub repository ComeOnOliver/skillshub (63 stars, last pushed 2mo ago), licensed MIT. It adds 50 tokens to every session and 4,419 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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