Luau Standard Library

Mod VMs run Luau with ALL_SAFE libraries plus sandbox(true). This section is a runtime-verified inventory (generated by a core test that enumerates the live sandbox), not a transcription of Luau’s docs — if a function isn’t listed here, it isn’t available to mods.

Every function gets its own page with signature and examples:

Library	Functions	Notes
math	35 + 2 constants	full library incl. Luau’s lerp, map, clamp, round, sign, noise, isnan/isinf/isfinite
string	18	full library + Luau’s split, binary pack/unpack/packsize
table	17	full library + Luau’s clone, clear, create, find, freeze, isfrozen
os	4	time only: clock, date, difftime, time — no execute/env/files
bit32	15	flag arithmetic for EConVarFlag; Luau’s countlz/countrz/byteswap
coroutine	8	incl. Luau’s close; the frame-spanning pattern
utf8	5 + charpattern	Unicode-aware text handling
vector	14 + 2 constants	native vector type; vector.create, not vector(...)
buffer	26	typed binary byte buffers
debug & misc	2 + loadstring	debug.info, debug.traceback, runtime compilation

Not available (verified absent)

Library / function	Why
io	No file system access from mods (game-FS sandbox arrives later, scoped)
os.execute and friends	No process/environment access
require	Present but loader-less; package-local require is planned
debug internals	Only info/traceback survive the sandbox
load	Use loadstring
C FFI	Never — mods stay memory-safe by construction