s&box MCP Knowledgebase

Documentation, API references, code examples and community knowledge for s&box development.

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codeAPI Reference
May 3, 2026

Sandbox.GameResource

Sandbox.GameResource Base class for custom asset types. Overview GameResource is the base class for creating custom asset types that appear in the editor with f…

terminalCode Example
May 5, 2026

Custom GameResource assets — defining asset types with ResourceLibrary and PostLoad registry

Custom GameResource Assets lets you define your own asset types with a custom file extension, inspector UI, and hot-reload support. Assets are JSON files under …

menu_bookDocumentation
May 20, 2026

Custom GameResource Assets: Define, Create, and Access Custom Asset Types

Define custom asset types as subclasses. They get a nice inspector window, are hotloaded in-game, and are stored as JSON files with a custom extension. Creating…

menu_bookDocumentation
May 20, 2026

Property Attributes: Inspector Customization for Components and Assets

Property attributes control how Component properties appear in the s&box editor/inspector. They work on both Components and GameResource properties. Layout and …

menu_bookDocumentation
May 20, 2026

Custom Assets: GameResource Definition with Inspector and Hotloading

Define custom asset types as in s&box. They provide inspector windows, are hotloaded in-game, and are stored as JSON files with custom extensions. Creating a Cu…