القائمة
Use for Luau annotations, generics, unions, narrowing, strictness, sealed tables, module type exports, or typed metatables.
التثبيت باستخدام Codex أو Claude انسخ هذا Prompt والصقه في Codex أو Claude أو مساعد آخر ليراجع صفحة Skill ويثبّتها لك.
Use when implementing Roblox character animations, particles, beams, trails, tweens, camera shake, or other visual effects.
Use when building Roblox menus, HUDs, shops, notifications, dialogs, or responsive cross-platform UI.
Use when handling Roblox keyboard, mouse, gamepad, touch, motion input, or cross-platform action binding.
Use when validating RemoteEvent or RemoteFunction arguments, adding rate limits, designing server-authoritative systems, or preventing exploits.
Use when creating Roblox NPCs or enemies with pathfinding, state machines, line-of-sight or FOV detection, spawns, or AI update loops.
Use when building Roblox vehicles, ragdolls, projectiles, elevators, constraints, forces, or other physics-driven gameplay.
استنادا إلى تصنيف SOC المهني
| name | roblox-luau-types |
| description | Use for Luau annotations, generics, unions, narrowing, strictness, sealed tables, module type exports, or typed metatables. |
| last_reviewed | "2026-05-27T00:00:00.000Z" |
| sources | ["https://luau-lang.org/typecheck"] |
Load for Luau type system work: annotations, generics, union types, type narrowing, sealed/unsealed tables, strictness modes (--!strict vs --!nonstrict), module type exports, and metatable-backed object typing. For syntax questions, use roblox-luau-core. For OOP/async/modules, use roblox-luau-patterns.
Strictness: --!strict (new code), --!nonstrict (transitional), --!nocheck (legacy only). The New Type Solver (GA Nov 2025) is faster/more accurate.
Inference philosophy: Infer first, annotate boundaries (params, returns, exports). Don't annotate every local — noise hides signal.
Sealed vs unsealed tables:
local t = {} -- unsealed: can add fields
t.x = 1 -- OK
local t: {x: number} = {x=1} -- sealed: no new fields
t.y = 2 -- ERROR
Build tables fully before annotating. Passing/returning seals them.
Unions & tagged unions:
local id: string | number = "abc"
type State<T> = {kind:"loading"} | {kind:"ready", value:T} | {kind:"fail", msg:string}
-- Discriminate: if state.kind == "ready" then state.value is narrowed
Narrowing:
if typeof(x) == "string" then ... end -- primitive narrowing
if inst:IsA("BasePart") then ... end -- Instance narrowing
assert(val, "missing") -- non-nil narrowing
Generics: Use when input→output type matters. function first<T>(list: {T}): T?. Generic aliases: type Result<T> = {success: boolean, value: T?}. Never replace with any.
Type exports: export type Foo = {...} at module boundary. Consumers use require + Types.Foo.
Object typing: export type Counter = typeof(setmetatable({} :: CounterData, Counter)) for precise self.
Casts (::): Precision tool to narrow overly generic inference — never to hide errors.
Key mistakes: Unsealed any propagation in nonstrict, sealing tables too early, unions without discriminants, annotating every local.
Full reference: see
references/full.md