Unity Claude Skills

Unity Claude Skills Plugin

A comprehensive Claude Code plugin providing 35 skills covering the entire Unity Game Engine documentation. Based on Unity 6.3 LTS (6000.3) official documentation.

95 files | 44,500+ lines of actionable Unity development guidance, patterns, and API references.

Installation

From a marketplace

# If this plugin is listed in a marketplace you've added:
/plugin install unity

Direct (local testing)

# Clone the repo
git clone https://github.com/Nice-Wolf-Studio/unity-claude-skills.git

# Run Claude Code with the plugin loaded
claude --plugin-dir ./unity-claude-skills

Verify installation

/help              # Should show all unity:* skills
/context           # Check skills are within context budget

Skills Overview

All skills auto-invoke when Claude detects relevant Unity work. You can also invoke them directly with /unity:<skill-name>.

Core Skills

Skill	Scope	Files	Lines
unity-foundations	GameObjects, Components, Transforms, Prefabs, Scenes, ScriptableObjects	4	1,536
unity-scripting	MonoBehaviour lifecycle, coroutines, async/await, events, core APIs	4	1,543

Domain Skills

Skill	Scope	Files	Lines
unity-physics	Rigidbody, colliders, raycasting, joints, CharacterController, 2D physics	4	1,630
unity-graphics	URP, HDRP, Shader Graph, materials, cameras, Render Graph	5	1,415
unity-animation	Animator, state machines, blend trees, Timeline	4	1,645
unity-cinemachine	CinemachineCamera, blending, FreeLook, impulse, state-driven cameras	2	739
unity-ui	UI Toolkit, USS/UXML, data binding, TextMeshPro, uGUI, Canvas	5	2,330
unity-audio	AudioSource, Audio Mixer, spatial audio, import settings	2	970
unity-2d	Sprites, tilemaps, 2D physics, 2D lighting, sorting	3	1,257
unity-lighting-vfx	Lighting modes, probes, APV, Particle System, VFX Graph	4	1,915
unity-input	New Input System, actions, gamepad, touch, rebinding	2	1,130
unity-multiplayer	Netcode for GameObjects, RPCs, NetworkVariables, Relay, Lobby	3	1,583
unity-ai-navigation	NavMesh, pathfinding, NavMeshAgent, Sentis ML inference	3	1,184
unity-xr	XR Interaction Toolkit, OpenXR, AR Foundation, hand tracking	2	760
unity-ecs-dots	Entities, ISystem, Jobs, Burst Compiler, baking, SubScene	3	1,025
unity-performance	Profiler, Memory Profiler, Frame Debugger, optimization patterns	3	989
unity-editor-tools	Custom inspectors, EditorWindow, PropertyDrawer, Gizmos	4	1,479
unity-platforms	Build profiles, platform defines, mobile optimization, IL2CPP	3	918
unity-testing	Unity Test Framework, Edit/Play Mode tests, CI/CD	2	1,096
unity-packages-services	Package Manager, Unity Gaming Services, 133 packages list	2	709

Correctness Skills (Tier 1)

These skills use a PATTERN format (WHEN/WRONG/RIGHT/GOTCHA) to catch Claude's most common mistakes -- wrong code that compiles and looks correct.

Skill	Scope	Files	Lines
unity-3d-math	Coordinate spaces, quaternions, Plane/Bounds, Camera projection, float precision	2	~700
unity-physics-queries	Query type selection, NonAlloc, hit ordering, layer masks, trigger interaction	2	~600
unity-lifecycle	Fake-null, Destroy deferral, editor vs runtime init, execution order, async destruction	2	~600
unity-input-correctness	Action reading, rebinding persistence, multiplayer devices, control schemes	2	~550
unity-async-patterns	Awaitable double-await, cancellation tokens, coroutine errors, Addressables	2	~600

Architecture Skills (Tier 2)

These skills use a DECISION format (WHEN/DECISION→Options/SCAFFOLD/GOTCHA) for architecture choices with genuine tradeoffs -- not one right answer, but the right answer for your context.

Skill	Scope	Files	Lines
unity-game-architecture	Service Locator vs DI, MonoBehaviour vs plain C#, event architecture, bootstrap	2	~800
unity-state-machines	FSM, HFSM, Behavior Trees, stack machines, enum vs IState, testing	2	~850
unity-data-driven	SO vs JSON config, data pipelines, designer handoff, versioning/migration	2	~750
unity-save-system	Serialization formats, save architecture, PlayerPrefs, versioning, auto-save	2	~850
unity-scene-assets	Additive scenes, Addressables, AssetReference, loading screens, asset lifecycle	2	~750

Domain Translation Skills (Tier 3)

These skills use a DESIGN INTENT format (DESIGN INTENT/WRONG/RIGHT/SCAFFOLD/DESIGN HOOK) bridging designer vision to code architecture -- translating what the game SHOULD feel like into how it SHOULD be built.

Skill	Scope	Files	Lines
unity-game-loop	Core loop scaffolding, session lifecycle, win/lose conditions, meta loops, difficulty, pacing	2	~2,190
unity-npc-behavior	Perception systems, decision layers, action pipelines, factions, NPC memory, squad coordination	2	~2,970
unity-ui-patterns	Screen flows, View/ViewModel, HUD architecture, feedback/juice, dynamic lists, transitions	2	~1,880
unity-level-design	Triggers, encounters, checkpoints, cinematics, interactables, level streaming	2	~2,150
unity-procedural-gen	Noise generation, tile/grid systems, dungeon generation, seeds, content budgets, baked vs runtime	2	~1,955

What Each Skill Provides

Every skill includes:

• Core Concepts — Essential knowledge distilled from Unity 6.3 docs
• Common Patterns — Idiomatic C# code examples with best practices
• Anti-Patterns — Common mistakes and why they're wrong (with fixes)
• API Quick Reference — Key classes and methods in table format
• Reference Files — Detailed API docs for progressive disclosure
• Cross-References — Links to related skills for connected topics

Architecture

unity-claude-skills/
├── .claude-plugin/
│   └── plugin.json           # Plugin manifest (name, version, author)
├── skills/
│   ├── unity-foundations/
│   │   ├── SKILL.md          # Core instructions (<500 lines)
│   │   └── references/       # Detailed API docs (loaded on demand)
│   ├── unity-scripting/
│   │   ├── SKILL.md
│   │   └── references/
│   ... (35 skills total)
└── README.md

Progressive disclosure: SKILL.md files contain the essentials Claude needs. Reference files provide deeper API details that Claude loads only when needed, keeping context usage efficient.

Unity Version

All content is sourced from Unity 6.3 LTS (6000.3) official documentation as of March 2026. Key docs:

• Unity 6.3 Manual
• Unity 6.3 Scripting API

Contributing

To update skills when Unity documentation changes:

1. WebFetch the updated docs pages
2. Update the relevant SKILL.md and reference files
3. Bump the version in .claude-plugin/plugin.json
4. Push — users with auto-update enabled will get the changes on next startup

License

MIT

---

Built by Nice Wolf Studio