Roblox AI Script Generator: Where the Script Must Go
The Roblox AI script generator to try first is Assistant, which is built into Roblox Studio and can insert scripts for you. A common failure has nothing to do with bad code: the script sits in the wrong place, or it runs on the wrong side.
Roblox's guide, read on 2 November 2026, says Assistant can insert new scripts, modify existing ones and act on several objects at once. It also warns that "the generated script might not function flawlessly". Prefer a coding AI from outside? Connect it to Studio.
The two sides of a Roblox game
Every Roblox game runs in two places: on the server, which is Roblox's computer, and on the client, which is each player's device. A script runs on one side, and where you put it largely decides which.
| What the script does | Kind and place | Why |
|---|---|---|
| Coins, health, anything worth cheating for | Script in ServerScriptService | It runs on the server |
| Button presses, the counter on your screen | LocalScript in StarterPlayerScripts or StarterGui | It runs only on the player's device |
| Code used by several scripts | ModuleScript in ReplicatedStorage | It can be shared by both sides |
Two details from Roblox's docs catch people out. A LocalScript does not run from ReplicatedStorage. A normal Script only runs in a server location, such as ServerScriptService or Workspace.
The rule behind all this is blunt. Roblox's security guide says to "assume every piece of data sent from the client has been manipulated, fabricated, or sent with malicious intent". The server must be the source of truth for player progress.
Worked example: the coin that was never real
Lava Bakery is an invented game: you jump across lava to grab cupcakes for coins. You ask for coins when a player touches a cupcake.
A generator may hand you a LocalScript that raises the number on screen. You press play, touch a cupcake, and the counter climbs by 5. It looks perfect. But those coins exist only on your device. Other players see nothing, and a cheater could set any number they like. Playing alone will never show you this, which is why the tricky part of a Roblox script is not the writing. It is deciding who decides.
So ask for that first. Assistant can look at your place, and its strength is working on real objects, which makes a drawing of the two sides easy to compare with what is there. The drawing is written in Mermaid, a text format that mermaid.live displays.
There is a second trap in the same example. One touch can fire several times as a character brushes past. If you have not ruled that out, a cupcake can pay more than once. If your game saves coins too, saving is its own topic.
Paste this to your AI
In my Roblox game Lava Bakery, a player gets 5 coins for touching a cupcake. The cupcake then disappears for 10 seconds and comes back. Everyone in the server must see the same coin totals.
Before writing any script, draw this as a Mermaid diagram with two lanes, server and player's device, showing which side decides what. Include the cupcake's stages: ready, gone, back. Explain why no path can pay twice for one cupcake, and why no player's device can set its own coins. Show me, then build from it.
Say where each script goes, which kind it is, and why that place fits, with the exact path in the Explorer. If you are not sure of a name in my game, look in the place or ask me. Do not invent an object you have not seen. Tell me what I should see in the Output window.
Or skip this and connect the MCP: your AI then finds all of this by itself.Connect the MCP
How to check it worked
- Start a local session with two players. Touch a cupcake as one. The other should see the same total.
- Run back and forth across a cupcake. It should pay once.
- Count to ten. The cupcake should come back on time.
- Open the Explorer. The script should be where the AI said, as the kind it said.
- Read the Output window. Red lines mean something failed, however good the game looks.