gethiddenproperty

Roblox marks certain InstanceInstanceThe base class for all Roblox objects (Parts, Models, Scripts, GUIs, etc.). Instances form a tree hierarchy (the DataModel). In Luau, they appear as userdata with shared metatables. properties as notscriptable in its reflection metadata, preventing Luau code from reading them. The executor bypasses this by directly calling the property's C++ getter function through the reflection systemReflection systemRoblox's internal type metadata system. Every class (Part, Humanoid, etc.) has a ClassDescriptor with property descriptors, method descriptors, and event descriptors. The executor's getproperties/gethiddenproperties read this metadata., ignoring the scriptability flag. Returns both the value and a boolean indicating whether the property was hidden.

Every Roblox class has a PropertyDescriptor for each property, containing:

• name — the property name string
• type — the value type
• get/set — C++ getter/setter function pointers
• flags — includes isScriptable

The executor ignores the isScriptable flag and calls the getter directly.