STUD
STUD AI · Coding
STUD is a free, open-source AI coding assistant built specifically for Roblox development. It doubles as an open source AI coding tool you run in your terminal. It reads and edits your codebase through natural language, and connects to Roblox Studio with 27+ tools. So you can edit scripts, manipulate instances, query DataStores, and search the Toolbox without leaving your workflow. Access runs through a waitlist for now.
About STUD
What Is STUD
STUD is an AI coding assistant aimed at Roblox developers. You type what you want in plain English, and it works on your actual project files, not on a paste-in chat window. The pitch is narrow on purpose: a complete toolkit for Roblox work, with every feature free and open source. Think of it as a Luau scripting assistant that also handles the non-code parts of a Roblox project.
Under the hood it packs modern AI with deep tooling integration. There's full language server support for code navigation and diagnostics. Model Context Protocol support for custom tools. Session management, plus a subagent system that runs complex tasks in the background. It also works as a general coding assistant for any project, so Roblox Studio isn't strictly required unless you want the Studio-specific tools.
The biggest thing to understand before you start is the model setup. STUD doesn't include a model subscription. What does that mean in practice? You bring your own API key from an LLM provider, set it as an environment variable, and pay that provider directly. Your costs scale with how much you use it. There's no STUD-side billing to worry about. Cheap if you prompt it carefully.
Getting Started
- Confirm prerequisites: Node.js 18+, plus Roblox Studio if you want the Studio integration. Grab an API key from your preferred LLM provider.
- Install STUD by cloning the repository and installing dependencies with
bun install. - Set your API key as an environment variable, such as
ANTHROPIC_API_KEY, and add it to your shell profile so it persists. - For Roblox work, copy the bundled plugin file into your Roblox Studio plugins folder, restart Studio, and enable HTTP Requests under Game Settings.
- Launch STUD in your project directory and describe your first task in plain English.
Product Information
A quick look at STUD's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- Roblox developers
- Solo creators and small teams
- Developers new to a Roblox codebase
Tasks
- Editing scripts and instances
- Codebase exploration
- Toolbox and asset work
- DataStore management
Scenarios
- Refactoring a messy module for readability while keeping behavior identical.
- Adding a system like a cooldown for abilities, then generating the matching tests.
- Turning a design note into a working round manager across server and client code.
- Resuming a previous session to track token usage and pick up a half-finished conversation.
Key features
Terminal-native interface
STUD lives in your terminal rather than a separate editor or browser tab. You get a text UI that fits how many developers already work. It keeps the assistant next to your shell, git, and file tools. If your workflow is already keyboard-driven, this feels less like a new app and more like a new command. Big difference.
Roblox Studio integration
More than 27 specialized tools connect STUD to Roblox Studio. It can edit scripts, manipulate instances, query DataStores, and search the Toolbox from a single prompt. This is the part that separates STUD from general coding agents. It understands Roblox's objects, not just text files. That's the whole point.
Natural language codebase control
You read, write, edit, and search your codebase by describing what you want. STUD learns your patterns over time. It aims to write code that fits naturally into the existing project, so you spend less time re-explaining your naming rules, file layout, and preferred libraries every time you start a new session with a fresh prompt. That means fewer prompts where you have to spell out your conventions yourself.
Permission-first safety model
When STUD wants to perform an action that modifies your system, whether that means writing a file, running a shell command, or editing a script inside Roblox Studio, it shows you exactly what it plans to do before anything on your machine actually changes. You can allow a change once, allow that action type for the whole session, or reject it. Read-only actions like searching files and spawning subagents don't need approval. It's a simple mental model: read all you want, write only when you nod.
Subagents and session management
STUD can hand off complex tasks to background agents that work in parallel. It also keeps sessions resumable. You can track token usage and manage conversation history across sessions. That matters when a task spans hours. Not minutes.
Model Context Protocol and LSP support
MCP support lets you plug in custom tool integrations beyond the built-in set. Full language server support gives you intelligent code navigation and diagnostics. Together they make STUD extendable without forking the project.
Smart file handling
Glob patterns, regex search, and context-limited file reading keep large projects manageable. Instead of dumping an entire codebase into a prompt, STUD pulls in what's relevant. Responses stay focused. Your API bill stays lower.
Pros and cons
Pros
- Free and open source, with no per-seat subscription, so costs come only from your own model provider usage.
- Purpose-built for Roblox with 27+ Studio tools, going well beyond generic code editing.
- Permission system stops writes, shell commands, and Studio edits until you approve them.
- Terminal-native TUI suits developers who prefer keyboard-driven workflows.
- Works as a general coding assistant too, so it isn't locked to Roblox-only projects.
Cons
- You must supply your own LLM API key, so there's no bundled model and no flat monthly price, which means your real cost depends entirely on how heavily you lean on it and which provider you pick.
- Setup involves cloning a repo, running `bun install`, and configuring environment variables, which is more hands-on than a one-click app and assumes you're comfortable living in a terminal for the initial install.
- Access runs through a waitlist, so you can't necessarily start the moment you decide to try it.
- Roblox features need Node.js 18+ and a plugin installed inside Studio, so casual users may find the initial setup heavy.
Frequently asked questions
STUD is an AI coding assistant for Roblox development. You use it to read, write, edit, and search your codebase through natural language, and to perform Roblox Studio operations like editing scripts, manipulating instances, and querying DataStores. It also works as a general coding assistant for non-Roblox projects. In short, it handles the whole loop from exploring a folder to shipping a change.
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