Unity MCP Bridge

This skill is how every other unity-* skill changes the project. It wraps MCP for Unity (CoplayDev, package com.coplaydev.unity-mcp): agent host → MCP (HTTP/stdio) → Python FastMCP server → WebSocket → Unity C# Editor package → Editor API. It controls a live, open Editor — not files on disk.

Prerequisites

• Unity Editor open and running with the package installed. Minimum Unity 2021.3 LTS; iOS Build Profiles (the build profile param) need Unity 6+.
• Python 3.10+ with uv/uvx.
• The MCP status panel (Window → MCP for Unity) must read Connected.

Setup for the active agent host (do once per project)