Unity Agent Plugin (official)
Unity's official plugin for Claude Code, Codex, Grok and Antigravity: 32 skills for UI, 2D, URP, audio, monetization, multiplayer and builds, in one install.
- GitHub stars
- 550 (GitHub stars as of 2026-10-23)
- License
- Unity Companion License
- Last commit
- 2026/10/22
- By
- Unity Technologies
Listed from the author's README. GameSkill has not run this end to end yet. Agent support and install steps are as documented by the author.
Install
/plugin marketplace add Unity-Technologies/unity-agent-plugin
/plugin install unity@unity-agent-plugincodex plugin marketplace add Unity-Technologies/unity-agent-plugin
codex plugin add unity@unity-agent-plugingrok plugin install Unity-Technologies/unity-agent-plugin --trustagy plugin install https://github.com/Unity-Technologies/unity-agent-pluginCommands are copied from the project's README. Check the repository before running anything on your machine.
What you get
- 32 skills, including UI Toolkit/uGUI/IMGUI, sprite atlas, tile palettes, 2D pixel perfect and 2D physics
- URP skills: BiRP-to-URP migration, post-processing and Render Graph validation
- Monetization and live ops: in-app purchases, LevelPlay ads, Multiplayer Services and Vivox voice chat
- Build, web optimization, audio, localization and package management skills
- Skills that drive the open Editor through the Unity CLI
Good fit
- Unity 6 projects that want Unity's own guidance in Claude Code, Codex, Grok or Antigravity
Not for
- Projects before Unity 6
- Use outside Unity-dependent projects: the Unity Companion License only covers those
Overview
The Unity Agent Plugin is Unity's official way to install its unity skills into coding agents. One marketplace command installs all 32 skills. In Claude Code they appear under /unity:, and the agent picks the right one when you describe a task such as "add in-app purchases so players can buy a coin pack". The plugin also supports Grok and Antigravity, which this directory doesn't list as agents yet.
Many skills work best with the Unity CLI, which lets the agent create GameObjects, change import settings and run C# in the open Editor instead of editing scene files. The agent checks for the CLI and can install it, and Unity Hub now installs it automatically.
Related
- Unity official skills lists the same skills one by one, for agents without plugin support.
- UnitySkills, MCP for Unity and GladeKit MCP are community Editor bridges you can use alongside it.
Requirements
- Unity 6 or newer
- Unity CLI (recommended; the agent can install it for you)
Topics
FAQ
Works well with
Skills the author points to as related or as the better fit for neighbouring tasks.
Unity Skills (official)
Unity's own collection of skills for AI coding agents: prompts, slash commands and tools built for Unity workflows.
UnitySkills (Besty0728)
Agent Skills plus a local REST server that let AI agents drive the Unity Editor: 839 REST skills, permission modes, audit log and rollback.
MCP for Unity (CoplayDev)
A bridge between AI assistants and the Unity Editor: manage assets, control scenes, edit scripts and automate tasks.
GladeKit MCP (Unity + Godot)
One MCP server for Unity and Godot editors: 275 Unity tools, 115 Godot tools, gameplay scaffolders, screenshot checks and GLADE.md project context.
Similar skills
Hermes GameForge
A game-development plugin for Hermes Agent with 10 agent skills and 9 tools: SFX, music, NPC voices, pixel sprites, tilesets, low-poly 3D, web/Godot/Unity builds, a playtester that plays the build, and itch.io export. Runs offline by default.
Claude Code Game Studios
Turns Claude Code into a full game studio: 49 agents and 72 workflow skills arranged like a real studio hierarchy.
Team Audio (Claude Code Game Studios)
Orchestrate the audio team — audio-director, sound-designer, technical-artist, gameplay-programmer — direction through implementation.
Godogen
Autonomous game development with Claude Code and Codex. Publishes a ready game repo for Godot, Bevy, Babylon.js or three.js.