Roblox Dev Master v1.12.0-gate
Check generated Luau (Python 3, no dependencies):
python scripts/luau_syntax.py script.luau # syntax parse, line:col + hint
python scripts/ui_lint.py UI.client.luau # emoji icons, fake asset IDs, top-bar overlap, oversized panels
python tests/run_all.py # every test (parser, corpus, UI lint, lint rules)
Limits: syntax and a few compile-time errors only; not types, API names, layout or runtime behavior.