s&box MCP Knowledgebase

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

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menu_bookDocumentation
May 5, 2026

Hotloading - s&box Documentation

Hotloading Whenever you save a code file in your project (.cs or .razor files), we recompile and attempt to live-reload the changed assembly. This lets you quic…

menu_bookDocumentation
May 5, 2026

Scene Metadata - s&box Scene Documentation

Scene Metadata You can implement the interface in any Component that has data you'd like saved to Metadata. Metadata is data that can be accessed without needin…

codeAPI Reference
May 4, 2026

s&box Inspector Attributes: Complete Reference for Component Properties

s&box Inspector Attributes: Complete Reference for Component Properties These attributes control how properties appear in the s&box editor inspector. Display At…

codeAPI Reference
May 12, 2026

s&box BanSystem: Player ban management

BanSystem GameObjectSystem API Reference BanSystem holds a banlist and can ban users. Implements INetworkListener to reject banned connections. Bans are persist…

menu_bookDocumentation
May 20, 2026

Creating Post-Process Effects: BasePostProcess with Volume Blending and Shaders

Create custom post-processing effects in s&box by deriving from . This enables volume-based blending and custom shader rendering. The Component Key Methods GetW…

menu_bookDocumentation
May 12, 2026

s&box DupeMovement: Duper movement types

s&box DupeMovement Enum DupeMovement is an enum that describes the type of movement a duper contraption is designed for. This metadata helps users understand ho…

menu_bookDocumentation
May 20, 2026

Shader Graph Getting Started: Visual Shader Editor in s&box

s&box Shader Graph is a visual scripting language that compiles to shader code. Accessible to beginners and useful for rapid prototyping by experienced shader d…

menu_bookDocumentation
May 12, 2026

s&box StackAlignMode: Stacker alignment modes

s&box StackAlignMode Enum StackAlignMode is an enum used by the Stacker tool to determine how the stack direction axis is interpreted. It controls whether stack…

menu_bookDocumentation
May 3, 2026

Shaders in s&box - HLSL and Shading Models

Shaders in s&box - HLSL and Shading Models Write custom shaders in HLSL with Source 2's shading models, render states, and GPU instancing support. Shader Develo…

menu_bookDocumentation
May 20, 2026

GameResource Extensions: Appending Data to Existing Assets Without Modification

ResourceExtensions in s&box append additional data to existing GameResources without modifying the original class or assets. Useful for adding properties to Clo…

menu_bookDocumentation
May 5, 2026

HTTP Requests - s&box Networking Documentation

HTTP Requests s&box provides an HTTP client for making web requests to external APIs. This is useful for fetching data, submitting scores to custom backends, or…

menu_bookDocumentation
May 4, 2026

s&box Sandbox Security Model: Assembly Whitelist, Blocked APIs, Reflection Restrictions, and Safe Assembly Caching

s&box Sandbox Security Model: Assembly Access Control and Whitelisted APIs s&box uses a whitelist-based security model to prevent game code from accessing dange…

menu_bookDocumentation
May 12, 2026

s&box EaseType: Animation easing functions

EaseType Enum Documentation EaseType is an enum that defines easing functions for animated hydraulic movement. It is used by HydraulicEntity to control how the …

menu_bookDocumentation
Jun 16, 2026

Building a Networked Radio System with 3D Audio and Sync

Building a functional, interactive, and multiplayer-compatible radio system in s&box requires coordinating networked replication, local 3D audio handles, extern…

menu_bookDocumentation
May 20, 2026

GameObjectSystem: Batch Processing and Execution Order Control

A GameObjectSystem lets you run logic at specific points during the frame for all components of a type, rather than relying on individual component Update metho…

codeAPI Reference
May 12, 2026

s&box ClientInput: Input scope for controlled objects

Client input scope struct for routing input to controlled objects. Used by ControlSystem to redirect player input during chair/vehicle control. Static Propertie…

menu_bookDocumentation
May 4, 2026

NetworkSpawn, Ownership Transfer, and Network.Refresh in s&box

NetworkSpawn and Ownership Transfer in s&box Spawning a Networked Object Ownership Transfer Modes (OwnerTransfer) Taking and Dropping Ownership Checking Ownersh…

codeAPI Reference
May 3, 2026

Player Event Interfaces (Local and Global)

Local.IPlayerEvents and Global.IPlayerEvents Event interfaces for player lifecycle, damage, inventory, and camera events. Local fires to player hierarchy only; …

menu_bookDocumentation
May 5, 2026

Prefabs - s&box Documentation

Prefabs Prefabs are reusable GameObject templates that allow you to create consistent, repeatable objects across your game. You create a prefab asset from a Gam…

menu_bookDocumentation
May 20, 2026

Leaderboards: Stats Aggregation with Country, Date, and Centering Filters

Leaderboards in s&box are stats aggregated and ordered. They use the API. Basic Usage By default, leaderboards aggregate using sum and order descending. Filteri…