Unified AI agent integration for Unity Editor—in-editor chat, CLI/MCP automation, and the option to use it without installing the UPM package.
Your agent can run C# in a running Unity Editor, compile scripts and read the errors, and keep track of play mode and reloads, all without installing anything into your project. The optional Unity package adds chat inside the Editor, an MCP Gateway for other coding agents, and your own project-specific tools.
Requires Unity 2021.3 to 6.6 on the Mono runtime. CoreCLR is not supported yet.
Open Plugins, install Unity, then select Try in chat.
In Plugins, choose Add a marketplace, enter DotHarness/dotcraft-unity, then install DotCraft Unity.
Copy Plugins/dotcraft-unity/skills/dotcraft-unity into your agent's Skills directory, then install the CLI:
irm https://github.com/DotHarness/dotcraft-unity/releases/latest/download/install.ps1 | iexChat inside the Editor, the MCP Gateway and custom project tools need the Unity package. Open Window → Package Manager and add this Git URL:
https://github.com/DotHarness/dotcraft-unity.git?path=/Packages/com.dotcraft.unity
See Using the Unity package to set them up.
Open your project in Unity, then tell your agent what you want, for example:
Inspect the current scene, list every root GameObject, and find any objects with missing scripts.
