debug.getregistry - Mintlify Starter Kit

Returns the Luau registry - the table the VM keeps its internal references and loaded libraries in.

debug.getregistry(): table

The same table object comes back on every call. Its direct contents are the VM’s live internal references (threads, functions, userdata) plus _LOADED - every library and module required this session. The threads sitting in here are what getscriptfromthread walks to map a thread back to its owning script.

Returns

table - the live registry. The same object is returned on every call.

Key	What’s in it
`_LOADED`	Every library and module required in this session.
Internal keys	Live VM references the engine holds - threads, functions, userdata.

Aliases

getreg
getregistry

Example

In a Roblox game, list every library and module the Luau VM has loaded so far this session.

local getregistry = debug.getregistry()

local registry = debug.getregistry()

for key in pairs(registry._LOADED) do -- _LOADED is the require cache for this session
    print(key)
end

Use caution when modifying registry values, as it can cause instability in the Lua VM.