roblox-luau-mastery

Luau Language Mastery (Index)

When to Load

Load to route Luau questions to the right sub-skill (core syntax, types, or patterns). Always pair with one of roblox-luau-core, roblox-luau-types, or roblox-luau-patterns.

This skill has been split into three focused skills for better context efficiency. Load the one that matches your task:

Routing

Task	Load
Syntax, tables, control flow, string patterns, math, idioms, scope, closures, sharp edges, JS→Luau porting	roblox-luau-core
Type annotations, generics, narrowing, inference, strictness modes, exports, sealed/unsealed tables	roblox-luau-types
OOP (metatables, inheritance), async (Promises, pcall, coroutines), module structure, service pattern, Roblox idioms (Instance creation, events, task library)	roblox-luau-patterns

Quick Decision

• "How do I write this in Luau?" → roblox-luau-core
• "How should I type this?" → roblox-luau-types
• "How should I structure this?" → roblox-luau-patterns

Quick Reference

• Luau is NOT Lua 5.1. Has: generics, continue, +=, string interpolation (backticks), floor division //
• Arrays are 1-based. #tbl for length. Generalized iteration: for k, v in tbl do
• Always use task.wait/spawn/delay (never deprecated wait/spawn/delay)
• Instance.new: configure properties THEN set Parent last (replication race)
• Services: game:GetService("Name") at top of script, stored in locals
• Methods: use : (implicit self) for instance methods, . for constructors/static
• Prefer backtick interpolation over .. concatenation
• Local function order: callees above callers (no hoisting)
• Only nil and false are falsy