Skill Claude CodeCodex
Build and operate a live game using Unity Services. Use when the user needs to implement, connect, or debug backend-driven features — battle passes, achievements, player progression, cloud saves, leaderboards, matchmaking, virtual economies, server-authoritative logic, anti-cheat, player accounts and authentication…
Skill Claude CodeCodex
Implement, configure, and debug Unity In-App Purchases (IAP) — store connection, product catalog, consumable/non-consumable/subscription purchases, two-step pending-confirm flow, receipt validation, entitlement checking, restore transactions, Apple extensions (promotional purchases, Ask-to-Buy, code redemption), and…
Skill Claude CodeCodex
Sets up and configures the Unity AI Navigation system — NavMesh surfaces, NavMesh agents, obstacles, links, modifiers, areas and costs. Use when creating walkable navigation meshes, adding pathfinding agents, setting up patrol routes, configuring obstacle avoidance and carving, connecting separate NavMeshes with…
Skill Claude CodeCodex
Adds ads and monetization to a Unity game using the LevelPlay Mediation SDK (installed via the Ads Mediation UPM package). Use when a developer asks about adding ads to a Unity game, implementing rewarded, interstitial, or banner ads, setting up ad mediation, configuring ad networks, installing or updating the Ads…
Skill Claude CodeCodex
Sets up and configures Unity Localization, including locales, String/Asset Tables, CJK font support, and Addressables workflows. Use when the user wants to add languages to a project, translate UI text, support Asian (CJK) languages with TMP fonts, or mentions i18n, l10n, multilingual support, or making a game support…
Skill Claude CodeCodex
Use when starting a brand-new Unity game or project from scratch — "make/start/create a new game", "bootstrap a Unity project", "I want to build a game", "scaffold/prototype a game", game jam, greenfield, blank project, project setup. A guided flow that gathers the concept, target platforms, and monetization, installs…
Skill Claude CodeCodex
Optimizes Unity 6 audio memory, CPU cost, and playback quality through correct import settings and mixer configuration. Use when the user wants to reduce audio memory usage, choose the right Load Type for short clips versus music versus ambient beds, configure platform-appropriate sample rates and codecs, force 3D…
Skill Claude CodeCodex
Covers TextMeshPro font stacks, dynamic fallback atlases, padding and sampling ratios, SDF16, AutoSize discipline, worldspace vs UGUI, and Memory Profiler font-data capture. Use when the user mentions TextMeshPro, Text Mesh Pro, TMP (TextMeshPro), font asset, dynamic atlas, TMP localization, CJK (Chinese, Japanese…
Skill Claude CodeCodex
Optimizes Unity 6 WebGL and WebGPU builds for smaller download size, faster initial load, and efficient browser runtime performance. Use when the user's web build is too large, stutters in a specific browser, consumes excessive battery, needs CDN/server compression configured, or needs guidance on resource stripping…
Skill Claude CodeCodex
3D PhysX collision and trigger diagnostics for MonoBehaviour-based Unity projects. Primary scope: OnCollisionEnter / OnTriggerEnter not firing, objects passing through each other, Physics.Raycast missing, ragdoll explosion, AddForce stops working after settling, MeshCollider rules, and similar 3D PhysX symptoms.…
Skill Claude CodeCodex
Guides the development of online multiplayer experiences where players connect, group, and interact in real-time using Unity Multiplayer Services. Use when the user asks for topology choice, player grouping, hosting, matchmaking, discovery, network setup, and session-based play (rooms, parties, lobbies) using the…
Skill Claude CodeCodex
Add and configure in-game voice chat and text chat for Unity multiplayer games using Unity Vivox. Covers microphone setup and mic permissions on Android/iOS, voice activity detection (VAD) tuning, voice volume and mute controls in a settings UI (VoiceVadMinimumVolume, mic slider, mute button, speaking indicator)…
Skill Claude CodeCodex
Generates custom Shader Graph nodes from HLSL code. Use when the user wants to create a new Shader Graph node or make existing HLSL code work as a reflected function node.
Skill Claude CodeCodex
Edits Unity sprite properties by generating C# editor scripts using ISpriteEditorDataProvider APIs. Handles sprite rectangles, borders, pivots, outlines, and slicing operations (automatic, grid, isometric). Use when working with sprite assets, sprite sheets, texture atlases, or sprite slicing.
Skill Claude CodeCodex
Unity IMGUI (Immediate Mode GUI) expert for legacy editor tools using OnGUI/immediate mode. Generates and modifies IMGUI EditorWindows, custom Inspectors, PropertyDrawers, and scripts with IMGUI code (OnGUI, OnInspectorGUI). Use when maintaining existing IMGUI editor code or when user explicitly requests IMGUI/OnGUI.
Skill Claude CodeCodex
Unity uGUI (Canvas-based) UI expert. Understands, edits, and generates Canvas hierarchies, RectTransforms, Layout Groups, and prefab UI. Use for requests involving Canvas, uGUI, RectTransform, or .prefab UI files.
Skill Claude CodeCodex
Unity UI Toolkit expert for Unity 6.0+. Understands, edits, and generates UXML and USS files with flex-based layouts. Use for requests involving .uxml, .uss, UI Toolkit, UIElements, UIDocument, UI runtime binding, Custom UI Elements, Manipulators or PanelSettings.
Skill Claude CodeCodex
Unity UI expert for menus, HUDs, screens, panels, buttons, labels, and all visual interface elements. Handles questions about UI in scenes or prefabs (how many elements, what exists, structure analysis), styling changes (colors, borders, backgrounds, fonts, spacing, rounded corners), layout adjustments, and UI…
Skill Claude CodeCodex
Use when interacting with Unity CLI from the terminal, or to control a running/connected Unity Editor from the command line — create or modify GameObjects, edit scenes and assets, inspect the hierarchy, and run C# in a live Editor instead of hand-editing scene or asset files. Also install, upgrade or uninstall…
Skill Claude CodeCodex
Use when adding, removing, upgrading, or discovering Unity (UPM) packages programmatically from outside the Editor — headless or CI package installs via the C# UnityEditor.PackageManager.Client API, verifying package ids/versions against the Unity registry, or choosing which packages a game needs by genre, platform…
Skill Claude CodeCodex
Sets up, configures, and debugs URP post-processing effects using the Volume framework. Use when the user asks about bloom, tonemapping, color adjustments, depth of field, vignette, motion blur, or other Volume overrides in a URP project.
Skill Claude CodeCodex
Use when the user wants to review or validate a Unity 6+ URP ScriptableRendererFeature that uses the Render Graph API. Checks for correctness issues - resource wiring, material binding, execution structure, descriptor usage, global resource exposure, and Render Graph best practices.
Unity-Technologies/unity-agent-plugin
Plugin Claude Code
Official Unity plugins for coding agents, packaging Unity domain knowledge as agent skills.
Unity-Technologies/unity-agent-plugin
Plugin Claude Code
Unity's official plugin for coding agents, with curated skills for game development, monetization, and performance optimization.