Install the SDK
Put the RoStructure module in ServerScriptService and require it from server code only.
Install
The SDK is one ModuleScript with a few child modules. Place the folder roblox/sdk/src from the RoStructure repository at ServerScriptService.RoStructure. With Rojo, roblox/sdk/default.project.json does this for you.
Studio and misconfiguration
Studio test runs are a no-op unless you opt in:
RoStructure.init({ ..., enableInStudio = true })init never throws. If configuration is missing or invalid it warns once and returns an inert client, so the calls in the rest of your game are always safe.