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arg-software-factory/unity

v3.0.0MIT

Operate a live Unity Editor over MCP: build scene hierarchies, add components, author C# scripts, manage assets, and smoke-test in Play Mode. The bundled skills' guardrails stop a build from wiping its own scene.

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Unity

Connects Artyx to the CoplayDev Unity MCP bridge running inside a live Unity Editor. Artyx launches the Python server through uvx; the editor-side package is installed from Unity's own Package Manager.

Install instructions: CoplayDev/unity-mcp

That URL is interface.docsUrl in plugin.json, and it is what the desktop's "How to install" button opens. The steps are not mirrored here or in the manifest — the bridge's authors own them.

This plugin needs no install-time input: mcp.json is literal, so there are no userVars and no overlay. uvx must be on PATH, which the desktop preflights via requires.

Troubleshooting

  • uvx not found — Install uv (https://astral.sh/uv) and restart Artyx so the PATH change is picked up.
  • Tools connect but do nothing — The Unity-side bridge window is closed, or the editor is compiling.