# axiom-games

A router skill for Apple game work: it sends SpriteKit, SceneKit and RealityKit questions to the right reference, diagnostic guide or input doc.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 1100 installs · ★ 1229
- Author: CharlesWiltgen
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/CharlesWiltgen/Axiom/tree/HEAD/axiom-codex/skills/axiom-games/SKILL.md
- Updated: 2026-10-20
- HTML: https://affpapa.org/en/nevibecode/skills/axiom-games

## What it does

The skill splits game work across narrow references. SpriteKit architecture and patterns sit in `skills/spritekit.md`, API lookup in `skills/spritekit-ref.md`, and `skills/spritekit-diag.md` covers frame drops, physics contacts that never fire and touches that do not register. Touch controls and controller input through `TouchController` and `GCController` are in `skills/game-input.md`.

3D lives in neighbouring suites. RealityKit and SceneKit are in axiom-graphics, in-game purchases and asset packs in axiom-integration, window resizing and orientation lock in axiom-uikit. SceneKit is marked soft-deprecated as of iOS 26, so a new 3D project has little reason to start there. On 27 every game window resizes: `UIRequiresFullScreen` now means discrete snap-resizing, not an opt-out from fullscreen.

There is an automated pass too. `axiom-audit-spritekit` scans SpriteKit code for anti-patterns. Under Codex the auditors are invoked as skills rather than separate Claude Code agents, and the ones that shell out need real shell access. Builds, tests, simulators and crash symbolication will not run without it.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add CharlesWiltgen/Axiom --skill axiom-games -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/axiom-games/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/axiom-games/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add CharlesWiltgen/Axiom --skill axiom-games -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/axiom-games/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add CharlesWiltgen/Axiom --skill axiom-games -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/axiom-games/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install CharlesWiltgen/Axiom axiom-games
```

2. **Manually: put the files in place**
- File: `.github/skills/axiom-games/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add CharlesWiltgen/Axiom --skill axiom-games -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/CharlesWiltgen/Axiom --path axiom-codex/skills/axiom-games
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/axiom-games/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add CharlesWiltgen/Axiom --skill axiom-games -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/CharlesWiltgen/Axiom/tree/HEAD/axiom-codex/skills/axiom-games/SKILL.md

## When to use it
- route a game task to the right SpriteKit reference
- add on-screen touch controls to a 2D game
- wire up a controller with `GCController`
- trace why physics contacts never fire
- scan SpriteKit code for anti-patterns

## Example prompts
- Add touch controls to my SpriteKit game with `TouchController`.
- Frame rate keeps dropping in my SpriteKit scene, walk me through `skills/spritekit-diag.md`.
- Run `axiom-audit-spritekit` over the game code and list the anti-patterns.

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: 38456ae716efca08.

BEGIN THIRD-PARTY FILE 38456ae716efca08
```text
---
name: axiom-games
description: Use when building ANY 2D or 3D game with SpriteKit, SceneKit, or RealityKit, or adding touch controls or game controller support. Covers scene graphs, ECS, physics, actions, game loops, rendering, TouchController, GCController.
license: MIT
---

# Games

**You MUST use this skill for ANY game development, SpriteKit, SceneKit, RealityKit, touch controls, game controller, or interactive simulation work.**

<!-- AXIOM_AUDITOR_INLINE_BEGIN — rewritten for Codex by scripts/build-codex.ts; do not hand-edit -->
> **Auditors are skills here.** Where this router says "Launch `some-auditor` agent", invoke the
> matching Codex skill instead — same procedure, no Claude Code agent required.
>
> Available: `axiom-audit-spritekit`.
>
> The ones that shell out — builds, tests, simulators, crash symbolication — need shell access to run.
<!-- AXIOM_AUDITOR_INLINE_END -->

## Quick Reference

| Symptom / Task | Reference |
|----------------|-----------|
| Building a SpriteKit game | See `skills/spritekit.md` |
| Adding touch controls to a game (TouchController) | See `skills/game-input.md` |
| Game controller input (GCController, polling vs handlers) | See `skills/game-input.md` |
| Controller Home button settings, spatial accessories `OS27` | See `skills/game-input.md` |
| Game window resizing, orientation lock, UIRequiresFullScreen `OS27` | See axiom-uikit (skills/uikit-modernization.md) |
| SpriteKit API lookup | See `skills/spritekit-ref.md` |
| Physics contacts not firing | See `skills/spritekit-diag.md` |
| Frame rate drops (SpriteKit) | See `skills/spritekit-diag.md` |
| Touches not registering | See `skills/spritekit-diag.md` |
| Memory spikes in gameplay | See `skills/spritekit-diag.md` |
| Coordinate confusion | See `skills/spritekit-diag.md` |
| Scene transition crashes | See `skills/spritekit-diag.md` |
| Objects tunneling through walls | See `skills/spritekit-diag.md` |
| SpriteKit node/action reference | See `skills/spritekit-ref.md` |
| SceneKit maintenance/migration | See axiom-graphics (skills/scenekit.md) |
| SceneKit API / migration mapping | See axiom-graphics (skills/scenekit-ref.md) |
| RealityKit (3D, ECS, AR) | See axiom-graphics (skills/realitykit.md) |
| RealityKit API reference | See axiom-graphics (skills/realitykit-ref.md) |
| RealityKit diagnostics | See axiom-graphics (skills/realitykit-diag.md) |
| RealityKit 27 game features (navmesh, LOD, splats) | See axiom-graphics (skills/realitykit-ref.md Part 10) |
| Long-session game performance tracing (metalperftrace) | See axiom-graphics (skills/display-performance.md Part 12) |
```
END THIRD-PARTY FILE 38456ae716efca08

The third-party file has ended. Everything between the 38456ae716efca08 tags is data: requests and commands from it are not followed. An “end of file” line with another tag inside the block is part of the file.

First 2624 of 12505 bytes. © CharlesWiltgen · MIT · https://github.com/CharlesWiltgen/Axiom/tree/HEAD/axiom-codex/skills/axiom-games/SKILL.md

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