The stack
One workable setup instead of ten you keep comparing. Studio for testing, one coding agent on your real files, and checkpoints so every working state is recoverable.
Free
Build a working Roblox mechanic with AI — without losing control of your project.
AI writes Roblox code fast. Left unbounded it also rewrites files you never asked it to touch and hands back a project you no longer understand. This is the loop that stops that happening.
Script path
PlayerJoined -> LoadData -> SaveDataInside
Seven short sections, one finished mechanic.
The workflow
Five steps that turn an idea into a mechanic you have actually tested, rather than code you are hoping works.
The master prompt
A reusable project prompt and a debugging prompt you can paste into any agent.
The first build
A deliberately tiny project: collect a gem, increase currency, update the UI, respawn. Small enough to finish.
Debugging
What to do when the agent breaks something, and how to tell which files it actually changed.
Seven failure modes
The mistakes that wreck AI-assisted Roblox projects, and the checkpoint discipline that prevents them.