Unity Technologies

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.

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.

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, and monetization. The Unity CLI does not manage UPM packages, so this skill covers that gap. Triggers on "install a Unity package", "add com.unity.*", "set up packages headless/CI", "which packages for a [genre] game".

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 editors, create, list or open projects, manage modules, manage licenses, check auth status, read logs, browse Unity releases, build/test projects, configure the Unity MCP server for AI agents, or run any other Unity CLI operation. For a guided idea-to-running-project flow for a brand-new game, use the new-unity-project skill instead.

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.

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.

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. Do not use for NEW editor windows or tools: new editor UI defaults to UI Toolkit (ui-uitk) unless the project already uses IMGUI exclusively or the user asks for OnGUI by name.

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 generation. Routes to UI Toolkit, uGUI, or IMGUI based on project context. Use for ANY request to build, edit, or understand game UI (menus, HUDs, settings or pause screens) when no framework is named: consult this skill to detect which UI system the project uses before writing any UI code, even for a request that looks simple enough to build directly.

Use when the user wants tiles that auto-tile (autotile) as they paint, wants a RuleTile built from existing terrain or edge sprites, or asks to make sprites "tile correctly" or "connect properly". Also converts sprite-segment-3x3grid output patterns into Unity RuleTile TilingRules: 3x3 grid text patterns (X, ., *) become TilingRule neighbor configurations, mapping '.' to 'This' rules and 'X' to 'DontCare', sorted by specificity (more 'This' rules first). Use when creating RuleTiles from sprite analysis or defining tile neighbor rules programmatically. Sprites must be provided as input.

Creates an empty RuleTile asset without Sprite or Spritesheet inputs. Use ONLY when the user wants a blank RuleTile, HexagonalRuleTile, or IsometricRuleTile for custom rule configuration AND has not provided or referenced any sprites. If the user mentions existing sprites, terrain art, edge tiles, or a tiles folder, use tilemap-ruletile-createfromsegment instead, never this skill.

Creates a Tile Palette asset. Use when the user wants to organize tiles for 2D level design or create a new Tile Palette from scratch. The user can specify the Grid layout, eg. Rectangular, Hexagonal, Isometric.

Analyze Sprite textures and output a 3x3 grid representation based on color matching. Segments a Sprite into a 3x3 grid, identifies the majority color of the center cell, and outputs a text pattern showing which cells match the center color. Use when analyzing sprite patterns, documenting sprite structure, or describing sprite color distribution.

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.

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.

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), proximity/3D spatial voice for FPS/co-op games, team/party/lobby/guild voice channels, push-to-talk, muting self and other players, whisper/direct messages, in-game text chat, and Vivox SDK init + Unity Authentication sign-in. Use when the user asks to add voice chat, voice comms, microphone/mic support, a voice-chat settings UI, mute button, VAD threshold, push-to-talk, proximity or spatial voice, team voice, party chat, lobby chat, direct messages, or mentions Vivox, VivoxService, com.unity.services.vivox, JoinGroupChannelAsync, JoinPositionalChannelAsync, LoginAsync, or migrating from legacy Vivox (Client.Instance / LoginSession / AccountId).

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 Unity Multiplayer Services APIs. Not for leaderboards, cloud saves, or backend features that involve no real-time connection between players; those belong to the build-live-game skill.

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. Adjacent topics (2D physics, OTS / Unity Physics package): provides a brief best-effort answer with a scope disclaimer and a documentation link, rather than refusing outright. When dedicated specialist skills (physics-2d, physics-dots) are installed, those should handle their respective domains and this skill defers to them.

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, shader variant reduction, KTX textures, quality settings, or web profiling.

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, Korean) fonts, font alignment across scripts, mixed western and eastern fonts, text rendering performance, profiler markers related to text generation or glyph rasterization, font fallback strategy, font normalization, multilingual or localized text rendering, SDF font quality, or text-related memory issues—not for UI Toolkit layout (unity-ui-toolkit) or non-TMP uGUI (unity-ui).

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 audio to mono, or reduce AudioMixer CPU cost from deep group trees or effects running on silent paths.

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 [genre] game", "scaffold/prototype a game", game jam, greenfield, blank project, project setup. A guided flow that gathers the concept, target platforms, and monetization, installs the Editor in the background while it asks, then creates the project and source control and installs packages — delegating the mechanics to the unity-cli and unity-package-management skills and handing off monetization to the dedicated skills. Does not scaffold gameplay code.

Plans, executes, and troubleshoots Unity projects moving from the Built-in Render Pipeline (BiRP/BIRP/Built-in RP) to the Universal Render Pipeline (URP). Use when the user asks to upgrade, convert, switch, or migrate a project, scene, material, or shader to URP/Universal Render Pipeline; fix pink or magenta materials after URP; convert Built-in materials/shaders; move a 2D project to URP 2D; review lighting, quality, post-processing, baked lightmaps, or reflection probes after URP; or diagnose visual problems after a render-pipeline migration.

Manage SpriteAtlas using prebuild pipeline with IPreprocessBuildWithReport (DEFAULT approach). Use it to configure master atlases, variant atlases, texture settings, packing settings, and platform-specific configurations. Use when the user asks about creating sprite atlases, optimizing sprites, configuring atlas settings, adding sprites to atlases, creating variant atlases, implementing automated atlas generation, or runtime sprite atlas access. Always use prebuild approach unless user explicitly requests manual authoring.

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 multiple languages.

Integrates the LevelPlay Mediation SDK 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 Mediation package, troubleshooting LevelPlay namespace errors, resolving Android gradle or iOS CocoaPods dependency issues for ads, configuring ATT or privacy settings for ad compliance, tracking impression-level revenue (ILRD), initializing the LevelPlay SDK, or setting up ad unit IDs. Also use when a developer wants to monetize their Unity game with ads, asks how to get started with LevelPlay, ads, or mediation, or needs help with any part of the LevelPlay integration workflow including platform-specific setup for iOS or Android. Also use when upgrading the LevelPlay or IronSource SDK version, migrating from deprecated IronSource.Agent APIs, or migrating a game from Unity Ads to LevelPlay.

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 links, coupling navigation with animation, or troubleshooting navigation issues.

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 Google Play extensions (subscription upgrade/downgrade), D2C Capabilities(direct to customer), 3rd party payment provider (Stripe/Coda) via Unity IAP/Unity Cloud. Use when the user needs to add, modify, debug, or migrate from native Android/iOS billing, 3rd party packages(RevenueCat/Adapty/Essential Kit/Unipay supported) to IAP. Triggers on microtransactions (MTX), monetization, real-money purchases, store purchases, buying items, support D2C, purchase via Stripe/Coda, migrate from native billing(Google's BillingClient or Apple's StoreKit/SKPaymentQueue/SKProduct)/RevenueCat/Adapty/EssentialKit/Unipay.

Generates Unity Search / Quick Search queries and opens the Unity Search window for read-only Unity Editor asset or scene-object lookup requests. Always use when the user asks to find, search, show, locate, filter, look up, query, or list concrete assets or scene objects in the current project or scene, even if Unity Search is not named. Covers materials, textures, prefabs, scenes, scripts, shaders, GameObjects, components, Lights, Cameras, UI objects, labels, paths, references, selected or named assets, and asset types. Also use when the user explicitly mentions Unity Search, Quick Search, Search window, open Search, or asks what Unity Search query to use. Do not use for general project overview, project structure, folder-purpose summaries, gameplay/system explanations, how-to programming questions, web search, repository text search, build logs, package installation, menu or settings search, modifying results, or non-Unity filesystem search unless the user explicitly asks to use Unity Search.

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, remote configuration, feature flags, A/B testing, analytics, or cloud resource deployment. Triggers on live-ops, live service, backend, server authority, cloud code, cloud save, remote config, player data, retention, monetization loop, season pass, ranking, multiplayer sessions, lobbies, or any Unity Services integration.

Scans the scene and audio assets to appropriately route Audio Sources into existing Audio Mixer Groups, classifying each source by what it plays. Use when the user asks about cleaning up mixer assignments, routing audio through a mixer, or which group a sound belongs in. Creating mixers and groups, and setting volumes, are not automated — the skill inventories what exists and asks the user to add anything missing.

Imports 3D models and point clouds with Asset Transformer Toolkit (formerly Pixyz), and creates, edits, and runs RuleSets, Actions, and LODs. Use for Pixyz or Asset Transformer imports, RuleSets, or ImporterScriptableObjects. Requires toolkit 4.0+.

Sets up, diagnoses, and fixes pixel perfect 2D rendering in Unity projects. Use when working on any retro-style or pixel art 2D game.