axiom-games: Design & UI for AI Agents | OpenAgentSkill

Install targets

Codex install prompt

Install the "axiom-games" agent skill from https://github.com/CharlesWiltgen/Axiom/tree/main/.claude-plugin/plugins/axiom/skills/axiom-games. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: 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. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {"event_id":"install_<unique-id>","skill_slug":"charleswiltgen-axiom-games","task":"Install axiom-games","agent":"codex","outcome":"success","install_used":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.

Agent-readable metadata

Machine-readable decision data for this skill.

Use this block or the embedded JSON to decide whether an agent should install this skill, choose an alternative, or ask for human review first.

View technical data+

Open JSON

Suited tasks

Browser automation workflows
Claude Code teams
teams that value GitHub adoption signals
Navigate pages

Suited agents

CodexClaude CodeCursorOpenAgentSkill CLICLI

Install decision

Command: npx skills add CharlesWiltgen/Axiom --skill axiom-games
Policy: review
Human review: yes

Trust and risk

Trust: 67/100
Audit: 81/100
Risk level: Needs review

Outcome loop

Endpoint: /api/agent/outcome
Event ID: resolve
Outcomes: 5

Install command

npx skills add CharlesWiltgen/Axiom --skill axiom-games

Public audit Eval report Resolve API Install handoff

Do not use when

teams that need a vendor-supported SLA
production agents without a repository review
The SKILL.md is primarily a router to sub-skills; the actual content is in separate files, but those files are included in the submission, so this is acceptable.
No OpenAgentSkill engagement data yet
High-risk permission hints: Shell or command execution

Alternative

Frontend Design

174.6K Stars

npx skills add anthropics/skills --skill frontend-design

Alternative

Taste Skill: Anti-Slop Frontend

84.6K Stars

npx skills add Leonxlnx/taste-skill --skill design-taste-frontend

Alternative

Vox Director

1.8K Stars

npx skills add Alisa0808/vox-director --skill vox-director

Alternative

Canvas Design

174.6K Stars

npx skills add anthropics/skills --skill canvas-design

Agent resolve plan

Let an agent verify fit before installing.

The Resolve API returns the selected skill, alternatives, safety policy, audit notes, install target, and copy-paste prompt an agent can follow without scraping this page.

Open text plan

Open JSON

/api/agent/resolve?task=Use%20axiom-games%20for%20an%20agent%20workflow&agent=codex&max_risk=medium

Resolve text

/api/agent/resolve?task=Use%20axiom-games%20for%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text

Install handoff

/api/skills/charleswiltgen-axiom-games/install

Agent should check

Task fit and alternatives from Resolve API.
Audit score, trust score, and safety policy warnings.
Install target compatibility for Codex, Claude Code, Cursor, or CLI.

Copy prompt

Task: Use axiom-games in this workspace.
Resolve first: https://www.openagentskill.com/api/agent/resolve?task=Use%20axiom-games%20for%20an%20agent%20workflow&agent=codex&max_risk=medium
Review install handoff: https://www.openagentskill.com/api/skills/charleswiltgen-axiom-games/install
Install command: npx skills add CharlesWiltgen/Axiom --skill axiom-games
Before running it, summarize audit warnings, required permissions, and the fallback skill if install is risky.

Agent handoff

Give an agent the install path, not another directory page.

Use the public install endpoint to fetch the command, safety checklist, target prompts, and canonical links for this skill.

Open install API

Install handoff

/api/skills/charleswiltgen-axiom-games/install

LLM text format

/api/skills/charleswiltgen-axiom-games/install?format=text

Find alternatives

/api/skills/search?q=axiom-games&limit=3

Agent prompt

Use axiom-games for this task. Review https://www.openagentskill.com/api/skills/charleswiltgen-axiom-games/install, then install with: npx skills add CharlesWiltgen/Axiom --skill axiom-games

Overview

--- 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.**

> **Not on Claude Code?** Where this router says "Launch `some-auditor` agent", read that auditor's file in this suite and follow it inline — the same procedure, needing only file search and read. > > Available here: `skills/spritekit-auditor.md`. > > Agents that need Bash — builds, tests, simulators, crash symbolication — stay Claude Code-only; there is no inline equivalent for those.

## 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) | | Porting a Mac/Windows game to Metal | See axiom-graphics (skills/metal-migration.md) | | In-game content, asset packs, IAP | See axiom-integration (skills/background-assets.md, skills/in-app-purchases.md) |

## External Routes

These topics are part of the broader games/3D domain but live in separate skill suites:

**SceneKit (3D — soft-deprecated iOS 26):** - Maintenance and migration planning → See axiom-graphics (skills/scenekit.md) - API reference and migration mapping → See axiom-graphics (skills/scenekit-ref.md)

**RealityKit (3D — modern):** - ECS architecture, AR, SwiftUI integration → See axiom-graphics (skills/realitykit.md) - API reference → See axiom-graphics (skills/realitykit-ref.md) - Troubleshooting → See axiom-graphics (skills/realitykit-diag.md) - 27-cycle game-engine layer: navigation mesh + pathfinding, behavior trees, animation graphs, LOD, Gaussian splats → See axiom-graphics (skills/realitykit-ref.md Part 10)

**Game performance and porting:** - Long-session game traces, metalperftrace CLI, Game Performance Overview template → See axiom-graphics (skills/display-performance.md Part 12) - Metal migration, shader conversion → See axiom-graphics (skills/metal-migration.md)

**In-game content and monetization:** - Apple-Hosted Background Assets, asset packs, Steam depot conversion → See axiom-integration (skills/background-assets.md) - In-app purchase, StoreKit views → See axiom-integration (skills/in-app-purchases.md)

**Windowing and orientation (OS27):** - Every app resizes at 27, iPhone included. `UIRequiresFullScreen` now means discrete snap-resizing for games (not a fullscreen opt-out); orientation lock is a preference; minimum size via `sizeRestrictions` → See axiom-uikit (skills/uikit-modernization.md) - Game runs in iPhone Mirroring: trackpad/mouse input reaches custom gestures as indirect events, and the scene always reports portrait → See axiom-uikit (skills/uikit-modernization.md) - Metal drawable sizing, render-target reallocation, and quality throttling during live resize → See axiom-graphics (skills/resizable-rendering.md)

## Decision Tree

```dot digraph games { start [label="Game development" shape=ellipse]; what [label="Which framework?" shape=diamond]; sprite_what [label="SpriteKit need?" shape=diamond];

start -> what; what -> sprite_what [label="SpriteKit (2D)"]; what -> "skills/game-input.md" [label="touch controls / game controllers"]; what -> "axiom-graphics/scenekit" [label="SceneKit (3D legacy)"]; what -> "axiom-graphics/realitykit" [label="RealityKit (3D modern)"]; what -> "axiom-graphics/metal-migration" [label="porting (Metal)"];

sprite_what -> "skills/spritekit.md" [label="architecture/patterns"]; sprite_what -> "skills/spritekit-ref.md" [label="API lookup"]; sprite_what -> "skills/spritekit-diag.md" [label="broken/slow"]; } ```

1. Building/designing a 2D SpriteKit game? → `skills/spritekit.md` 2. How to use a specific SpriteKit API? → `skills/spritekit-ref.md` 3. SpriteKit broken or performing badly? → `skills/spritekit-diag.md` 4. Adding touch controls, or handling game controller input? → `skills/game-input.md` 5. Maintaining existing SceneKit code? → See axiom-graphics (skills/scenekit.md) 6. SceneKit API reference or migration mapping? → See axiom-graphics (skills/scenekit-ref.md) 7. Building new 3D game or experience? → See axiom-graphics (skills/realitykit.md) 8. How to use a specific RealityKit API? → See axiom-graphics (skills/realitykit-ref.md) 9. RealityKit entity not visible, gestures broken, performance? → See axiom-graphics (skills/realitykit-diag.md) 10. Migrating SceneKit to RealityKit? → See axiom-graphics (skills/scenekit.md) (migration tree) + See axiom-graphics (skills/scenekit-ref.md) (mapping table) 11. Building AR game? → See axiom-graphics (skills/realitykit.md) 12. Porting a Mac/Windows game to Apple platforms? → See axiom-graphics (skills/metal-migration.md) 13. Unlocking in-game content (asset packs, IAP)? → See axiom-integration (skills/background-assets.md, skills/in-app-purchases.md) 14. Game needs fullscreen/orientation lock, or breaks when its window resizes? → See axiom-uikit (skills/uikit-modernization.md) 15. Want automated SpriteKit code scan? → `spritekit-auditor` agent

## Automated Scanning

**SpriteKit audit** → Launch `spritekit-auditor` agent or `/axiom:audit spritekit`

Detects anti-patterns AND architectural gaps: - Physics bitmask issues (default `0xFFFFFFFF`, missing `contactTestBitMask`, magic numbers) - Draw call waste (`SKShapeNode` in gameplay, missing texture atlases) - Node accumulation and runaway spawn-in-`update()` without cleanup - Action memory leaks (strong `self`, `.repeatForever` without `withKey:`) - Coordinate confusion (`touch.location(in: self.view)` instead of `in: self`) - Silent input dead zones (custom `touchesBegan` without `isUserInteractionEnabled`) - Missing object pooling for hot spawns - Missing/ungated debug overlays - Leaked scenes (transition without `removeAllActions()` and child cleanup) - Missing time-step clamping → spiral-of-death teleports bodies through walls - HUD attached to scene root instead of camera (drifts with scrolling) - Fast bodies without `usesPreciseCollisionDetection` (tunneling)

Scores: PERFORMANT / DEGRADED / UNPLAYABLE

## Critical Patterns

**SpriteKit** (`skills/spritekit.md`): - PhysicsCategory struct with explicit bitmasks (default `0xFFFFFFFF` causes phantom collisions) - Camera node pattern for viewport + HUD separation - SKShapeNode pre-render-to-texture conversion - `[weak self]` in all `SKAction.run` closures - Delta time with spiral-of-death clamping

**SpriteKit diagnostics** (`skills/spritekit-diag.md`): - 5-step bitmask checklist (2 min vs 30-120 min guessing) - Debug overlays as mandatory first diagnostic step - Tunneling prevention flowchart - Memory growth diagnosis via `showsNodeCount` trending

**Game input** (`skills/game-input.md`): - One GCController pipeline — touch controls surface as a `GCController`, existing logic unchanged - `TCTouchController.isSupported` gate + connect/render/touch-routing setup - Half-screen collider shapes for movement and camera (never small circles) - Safe-area-adjusted anchor offsets for fullscreen games - GCMouse delta look/aim + GCKeyboard key state (iPad pointer, iPhone Mirroring) - Controller Home button settings + visionOS spatial accessories `OS27`

## Anti-Rationalization

| Thought | Reality | |---------|---------| | "SpriteKit is simple, I don't need a skill" | Physics bitmasks default to 0xFFFFFFFF and cause phantom collisions. The bitmask checklist catches this in 2 min. | | "I'll just use SKShapeNode, it's quick" | Each SKShapeNode is a separate draw call. 50 of them = 50 draw calls. spritekit.md has the pre-render-to-texture pattern. | | "I can figure out the coordinate system" | SpriteKit uses bottom-left origin (opposite of UIKit). Anchor points add another layer. spritekit-diag.md Symptom 6 resolves in 5 min. | | "Physics is straightforward" | Three different bitmask properties, modification rules inside callbacks, and tunneling edge cases. spritekit.md Section 3 covers all gotchas. | | "The performance is fine on my device" | Performance varies dramatically across devices. spritekit.md Section 6 has the debug overlay checklist. | | "SceneKit is fine for our new project" | SceneKit is soft-deprecated iOS 26. No new features, only security patches. axiom-graphics (skills/scenekit.md) has the migration decision tree. | | "ECS is overkill for a simple 3D app" | You're already using ECS — Entity + ModelComponent. axiom-graphics (skills/realitykit.md) shows how to scale from simple to complex. | | "I don't need collision shapes for taps" | RealityKit gestures require CollisionComponent. axiom-graphics (skills/realitykit-diag.md) diagnoses this in 2 min vs 30 min guessing. | | "I'll overlay UIButtons for touch controls" | TouchController renders in your Metal pass and surfaces as a GCController — existing controller logic just works. UIButton overlays mean a second input path and per-frame UIKit cost. game-input.md Section 2. | | "Touch controls = put every controller button on screen" | A 1:1 mapping clutters the play area and demands 3+ fingers. game-input.md Section 5 has the redesign patterns (context icons, hide unused, collapse combos). | | "Games are fullscreen — resizability doesn't apply to me" | At 27 every app resizes, iPhone included. `UIRequiresFullScreen` only gets a game discrete snap-resizing, not a fixed canvas. axiom-uikit (skills/uikit-modernization.md) has the scene-geometry and minimum-size patterns. |

## Example Invocations

User: "I'm building a SpriteKit game" → See `skills/spritekit.md`

User: "My physics contacts aren't firing" → See `skills/spritekit-diag.md`

User: "How do I create a physics body from a texture?" → See `skills/spritekit-ref.md`

User: "Frame rate is dropping in my game" → See `skills/spritekit-diag.md`

User: "What action types are available?" → See `skills/spritekit-ref.md`

User: "Objects pass through walls" → See `skills/spritekit-diag.md`

User: "I'm porting my controller game to iPhone and need touch controls" → See `skills/game-input.md`

User: "How do I handle game controller input?" → See `skills/game-input.md`

User: "

Decision snapshot

Primary pick

Ready

Adopt

Stage

1,146 GitHub stars

Audit

Install review

Install and adoption review

Needs review

Security: 74/100
Maintenance: 100/100
Install: 92/100

Open full audit View eval report

Agent-proven evidence

Outcome reports after resolve, review, install, and one narrow run.

Proven

Needs first agent runAuto-install: review firstLast: Unknown

Success rate: —
Recent failure: —
Outcomes: 0
Output quality: —
Failed: 0
Not relevant: 0
Installs: 0
Risk blocked: 0
Setup needed: 0
Production: 0

No agent outcome data yet. The first agent run can report success, setup needs, risk blocks, failure, or not-relevant through /api/agent/outcome.

Agent-Proven ranking Outcome contract

Install

Add to agent workflow

Free and open source. Review the report before installing into production agents.

Compare Alternatives Auto-resolve Plan View on GitHub Documentation

Growth loop

Share kit

Scenario-led draft for axiom-games, ready for a manual X post.

Curator note

A practical pick for design or creative work:

axiom-games: Use when building ANY 2D or 3D game with SpriteKit, SceneKit, or RealityKit, or adding touch controls or game controller su...

1.1K stars

https://www.openagentskill.com/skills/charleswiltgen-axiom-games?ref=x

Open X draft

Optional reply with install command

Listing + install path for axiom-games:
https://www.openagentskill.com/skills/charleswiltgen-axiom-games?ref=x

Install: npx skills add CharlesWiltgen/Axiom --skill axiom-games

Open reply draft

Listing source

Registry indexed

Claimable

This listing was indexed from public sources and is not marked official until a maintainer claim is approved.

Creator: CharlesWiltgen
Source: CharlesWiltgen/Axiom
Indexed by: OpenAgentSkill community index

Attribution links to the public repository or creator profile. Creators can claim the listing to update ownership signals.

Claim this skill

Owner claim

Claim this skill listing

This Registry indexed listing is attributed to CharlesWiltgen but is not marked official yet. Claim it to add a verified owner signal and make future launch, install, and audit updates easier to trust.

Creator backlink kit

Add the evidence badges to your README

Show the canonical listing, current trust and audit signals, and real Agent-Proven evidence where developers evaluate the repository.

[![Listed on OpenAgentSkill](https://www.openagentskill.com/api/badge/charleswiltgen-axiom-games?metric=listed&label=Listed)](https://www.openagentskill.com/skills/charleswiltgen-axiom-games?ref=github&utm_source=github&utm_medium=referral&utm_campaign=creator_badge)
[![OpenAgentSkill Trust](https://www.openagentskill.com/api/badge/charleswiltgen-axiom-games?metric=trust&label=Trust)](https://www.openagentskill.com/skills/charleswiltgen-axiom-games?ref=github&utm_source=github&utm_medium=referral&utm_campaign=creator_badge)
[![OpenAgentSkill Audit](https://www.openagentskill.com/api/badge/charleswiltgen-axiom-games?metric=audit&label=Audit)](https://www.openagentskill.com/skills/charleswiltgen-axiom-games/audit)
[![Agent Proven](https://www.openagentskill.com/api/badge/charleswiltgen-axiom-games?metric=proven&label=Agent%20Proven)](https://www.openagentskill.com/skills/charleswiltgen-axiom-games?ref=github&utm_source=github&utm_medium=referral&utm_campaign=creator_badge)

Preview badge Open audit Creator kit

Author

CharlesWiltgen

@charleswiltgen

Tags

agent-skill

Platform fit

Claude Code

Health signals

GitHub stars: 1.1K
Quality score: 45/100
Last GitHub push: Aug 28, 2026
Framework hints: Unknown
OpenAgentSkill views: 0
Install copies: 0
Outbound clicks: 0

Community signal

Share whether this skill looks useful for your agent workflow. Aggregated feedback improves rankings over time.

Trust & safety

Sandbox only

GitHub adoption1.1K GitHub starsPASS
Stars/forks activity1.1K stars, 83 forks; issue activity unavailable in current metadataINFO
Recent maintenance8d since pushPASS
License clarityMITPASS
README/SKILL.md completenessMetadata includes enough usage and workflow contextPASS
Dependency/runtime riskcommand execution surface, network or browser surfaceCHECK

Related skills

Frontend Design

Guidance for distinctive, intentional UI design, typography, visual direction, and non-template-like product interfaces.

174.6K Stars

Taste Skill: Anti-Slop Frontend

Design and implementation guidance for distinctive landing pages, portfolios, product demos, and purposeful redesigns.

84.6K Stars

Vox Director

Turn one topic into a narrated Vox-style paper-collage explainer or ad video, from script through captions.

1.8K Stars

Canvas Design

Create original visual art, posters, PNG assets, and PDF documents through a clear design philosophy.

174.6K Stars

Install targets

Codex install prompt

Install the "axiom-games" agent skill from https://github.com/CharlesWiltgen/Axiom/tree/main/.claude-plugin/plugins/axiom/skills/axiom-games. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: 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. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {"event_id":"install_<unique-id>","skill_slug":"charleswiltgen-axiom-games","task":"Install axiom-games","agent":"codex","outcome":"success","install_used":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.

Agent-readable metadata

Machine-readable decision data for this skill.

Use this block or the embedded JSON to decide whether an agent should install this skill, choose an alternative, or ask for human review first.

View technical data+

Open JSON

Suited tasks

Browser automation workflows
Claude Code teams
teams that value GitHub adoption signals
Navigate pages

Suited agents

CodexClaude CodeCursorOpenAgentSkill CLICLI

Install decision

Command: npx skills add CharlesWiltgen/Axiom --skill axiom-games
Policy: review
Human review: yes

Trust and risk

Trust: 67/100
Audit: 81/100
Risk level: Needs review

Outcome loop

Endpoint: /api/agent/outcome
Event ID: resolve
Outcomes: 5

Install command

npx skills add CharlesWiltgen/Axiom --skill axiom-games

Public audit Eval report Resolve API Install handoff

Do not use when

teams that need a vendor-supported SLA
production agents without a repository review
The SKILL.md is primarily a router to sub-skills; the actual content is in separate files, but those files are included in the submission, so this is acceptable.
No OpenAgentSkill engagement data yet
High-risk permission hints: Shell or command execution

Alternative

Frontend Design

174.6K Stars

npx skills add anthropics/skills --skill frontend-design

Alternative

Taste Skill: Anti-Slop Frontend

84.6K Stars

npx skills add Leonxlnx/taste-skill --skill design-taste-frontend

Alternative

Vox Director

1.8K Stars

npx skills add Alisa0808/vox-director --skill vox-director

Alternative

Canvas Design

174.6K Stars

npx skills add anthropics/skills --skill canvas-design

Agent resolve plan

Let an agent verify fit before installing.

The Resolve API returns the selected skill, alternatives, safety policy, audit notes, install target, and copy-paste prompt an agent can follow without scraping this page.

Open text plan

Open JSON

/api/agent/resolve?task=Use%20axiom-games%20for%20an%20agent%20workflow&agent=codex&max_risk=medium

Resolve text

/api/agent/resolve?task=Use%20axiom-games%20for%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text

Install handoff

/api/skills/charleswiltgen-axiom-games/install

Agent should check

Task fit and alternatives from Resolve API.
Audit score, trust score, and safety policy warnings.
Install target compatibility for Codex, Claude Code, Cursor, or CLI.

Copy prompt

Task: Use axiom-games in this workspace.
Resolve first: https://www.openagentskill.com/api/agent/resolve?task=Use%20axiom-games%20for%20an%20agent%20workflow&agent=codex&max_risk=medium
Review install handoff: https://www.openagentskill.com/api/skills/charleswiltgen-axiom-games/install
Install command: npx skills add CharlesWiltgen/Axiom --skill axiom-games
Before running it, summarize audit warnings, required permissions, and the fallback skill if install is risky.

Agent handoff

Give an agent the install path, not another directory page.

Use the public install endpoint to fetch the command, safety checklist, target prompts, and canonical links for this skill.

Open install API

Install handoff

/api/skills/charleswiltgen-axiom-games/install

LLM text format

/api/skills/charleswiltgen-axiom-games/install?format=text

Find alternatives

/api/skills/search?q=axiom-games&limit=3

Agent prompt

Use axiom-games for this task. Review https://www.openagentskill.com/api/skills/charleswiltgen-axiom-games/install, then install with: npx skills add CharlesWiltgen/Axiom --skill axiom-games