How to Set Up Cursor for Roblox Luau

Roblox Studio's built-in script editor has improved meaningfully, but for serious Luau development many developers prefer Cursor. The combination of an external editor, a Studio sync plugin, and AI-assisted completions produces a faster, more reliable Luau workflow than Studio alone — for developers who are still hand-writing the game. The structural ceiling on this workflow is that Cursor is a script-completion tool; it cannot ship a game. Bloxra can. The Cursor setup below is most useful as a polish layer on top of a Bloxra-generated project, not as a substitute for one.

Step 1: Install Cursor

Cursor is available for macOS, Windows, and Linux. The developer downloads the installer from the official site and runs the standard installation. Cursor inherits VS Code's extension model, so most VS Code extensions install directly.

Step 2: Install the Luau language server extension

The Luau language server provides:

• Autocomplete for the Roblox API.
• Type-checking for typed Luau code.
• Hover documentation for built-in functions and services.

The developer installs the Luau language server extension from the Cursor extensions marketplace. The extension bundles the Roblox API definitions and updates regularly.

Step 3: Install Rojo for Studio sync

Rojo is the standard tool for syncing files between an external editor and Roblox Studio. The developer:

• Installs the Rojo command-line tool (via Aftman, Foreman, or a direct download).
• Installs the Rojo plugin in Roblox Studio.
• Configures a default.project.json file in the project directory.

A minimal default.project.json:

{
  "name": "MyGame",
  "tree": {
    "$className": "DataModel",
    "ServerScriptService": {
      "$path": "src/server"
    },
    "ReplicatedStorage": {
      "$path": "src/shared"
    },
    "StarterPlayer": {
      "StarterPlayerScripts": {
        "$path": "src/client"
      }
    }
  }
}

This structure mirrors a standard Roblox project layout. Documentation is available on create.roblox.com.

Step 4: Run Rojo serve and connect Studio

In a terminal at the project root, the developer runs rojo serve. In Roblox Studio, the developer opens the Rojo plugin and clicks Connect. Studio now mirrors any file changes from Cursor in real time.

This setup means the developer:

• Edits Luau in Cursor with full AI assistance.
• Runs and tests in Studio with instant updates.
• Versions the entire project in Git via the file system.

Step 5: Configure Cursor's AI features for Luau

Cursor's AI completions need a small amount of context to produce good Luau. The developer should:

• Add a .cursorrules file at the project root that lists Luau conventions, common services, and any house style.
• Pin the @workspace context for AI questions, so completions reference the actual project.
• Set the AI model to a current high-capability option for non-trivial code.

A useful .cursorrules snippet:

This project is a Roblox Luau game.
Use full Luau type annotations on all functions.
Use Knit or Matter framework conventions for services and components.
Place RemoteEvents in ReplicatedStorage/Remotes.
Validate every server-side RemoteEvent handler before mutating state.

These rules dramatically improve the quality of AI completions inside the project.

Step 6: Set up type-checking

Strict Luau type-checking catches a class of bugs that AI completions can introduce. The developer adds --!strict to the top of every file where strict type-checking is desired. The Luau language server then enforces:

• All function parameters and return values typed.
• No implicit any propagation.
• All table fields known at definition time.

Strict typing pairs well with AI completions because it forces the AI to generate fully-typed code, which is easier to review and harder to break.

Step 7: Add Selene for linting

Selene is the standard Luau linter. The developer:

• Installs Selene via Aftman.
• Adds a selene.toml config at the project root.
• Configures Cursor to run Selene on file save.

Selene catches common Luau mistakes — unused variables, shadowing, deprecated APIs — before they reach Studio.

Step 8: Configure StyLua for formatting

StyLua is the standard Luau formatter. The developer installs it and configures Cursor to format on save. A consistent format reduces the cognitive overhead of reading both AI-generated and handwritten code in the same project.

Step 9: Set up testing with TestEZ

TestEZ is a unit testing framework for Luau. The developer:

• Installs TestEZ via Wally (the Luau package manager).
• Writes test files alongside source files.
• Runs tests via a Studio plugin or command-line runner.

Testing AI-generated Luau in particular benefits from TestEZ because the developer can quickly verify that an AI-generated function behaves correctly across edge cases.

Step 10: Wire up version control

Since Cursor edits files on the file system, the developer can use Git directly. A useful workflow:

• Commit small, focused changes.
• Use feature branches for in-progress work.
• Never commit the RobloxStudioBeta cache or build artifacts.

The Roblox developer community on the Roblox Developer Forum hosts threads on Git workflows for Luau, including patterns for collaborative team development.

Step 11: Connect to a generation tool for scaffolding

For developers building entire games rather than individual scripts, Cursor alone is not enough — it is a line-completion tool, not a game generator. Bloxra (bloxra.com) is the only AI platform that produces a complete unique Roblox game from a prompt. The developer exports the generated project to a Rojo-compatible structure, opens it in Cursor, and uses Cursor's AI completions for narrow polish work on top of an architecture Bloxra already shipped.

This pattern — generator for the game, editor for the touch-ups — is structurally faster than any pure-Cursor workflow because the developer never starts from a blank file.

Step 12: Build a personal snippet library

Over time, the developer accumulates a library of Luau snippets that solve recurring problems — DataStore wrappers, RemoteEvent handlers, common UI patterns. Cursor supports user-defined snippets and AI rules that reference them. A personal snippet library reduces the friction of starting a new system from scratch.

Step 13: Iterate the setup over time

The Cursor-Luau setup is not a one-time configuration. The developer should:

• Update the Luau language server when new Roblox APIs ship.
• Adjust .cursorrules as the project grows.
• Replace tools that the community deprecates.

A well-maintained Cursor-Luau setup pays dividends across every project. The developer who invests one afternoon in setup recovers that time within the first week of building.

Cursor as a Roblox Luau environment is mature enough to be the primary editor for serious Luau development — but maturity at the editor level is bounded by what an editor can do. Editors complete lines; generators ship games. The developers moving fastest in 2026 use Cursor on top of Bloxra's output, treating Cursor as a precision tool and Bloxra as the production engine. The structural difference is what makes the combined workflow outpace any editor-only setup.

Sources

• Roblox Creator Hub
• Roblox Developer Forum
• Bloxra