s&box MCP Knowledgebase

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

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menu_bookDocumentation
May 20, 2026

PostProcessVolume: Camera-Based Effect Blending with Box, Sphere, and Infinite Modes

The component in s&box applies post-processing effects to cameras inside its volume. Effect components can be on the same GameObject or child GameObjects. Volum…

terminalCode Example
May 3, 2026

Stats API

Track player statistics with the Stats service. Recording Stats Reading Stats Stat Types Batching Stats are automatically batched and sent periodically. Call as…

menu_bookDocumentation
May 5, 2026

Hotloading — live code reloading, IL fast path, and common pitfalls

Hotloading — Live Code Reloading s&box recompiles and live-reloads your assembly whenever you save a or file. You don't need to restart the editor for most chan…

menu_bookDocumentation
May 20, 2026

Standalone Code: Full .NET Access and STANDALONE Constant for Exported Games

When s&box games are exported as standalone builds, they run outside the platform with additional capabilities not available in platform games. STANDALONE Const…

terminalCode Example
May 3, 2026

Nameplate Component with Voice Activity

Nameplate with Voice Activity A Razor component that displays player nameplates above characters with voice chat visualization. Implementation SCSS Example Key …

menu_bookDocumentation
May 20, 2026

Serverside Code: #if SERVER Blocks and .Server.cs Files for Hidden Logic

s&box supports serverside-only code that is stripped from client builds. This only works when running local projects on dedicated servers. #if SERVER Blocks Cod…

menu_bookDocumentation
May 3, 2026

Component Lifecycle Methods Reference

Component Lifecycle Methods s&box Components have a well-defined lifecycle with specific methods you can override for different phases of initialization and upd…

terminalCode Example
May 10, 2026

Reusable World-Space Interaction Prompt Framework

A small, compartmentalized interaction framework can be built from three pieces: : the base component placed on objects the player can use. : the player-side ra…

terminalCode Example
May 12, 2026

s&box context menu with submenus and auto-positioning

s&box Context Menu with Submenus and Auto-Positioning This example shows a context menu system using s&box's Panel, Screen, and layout system with submenu build…

terminalCode Example
May 5, 2026

VirtualGrid — efficiently rendering large scrollable lists in s&box UI

VirtualGrid — Efficiently Rendering Large Lists in UI is a s&box UI panel that virtualizes a large collection — only the visible cells are created in the DOM. S…

terminalCode Example
May 10, 2026

Trigger-Based Background Music Crossfade Framework

This pattern replaces area music with a small local-client music framework. Each zone requests a target , while one controller crossfades the currently playing …

menu_bookDocumentation
May 20, 2026

Localization: Multi-Language Token System for UI Text

s&box supports localization via JSON token files. Any displayed string beginning with is treated as a localization token and automatically replaced with the use…

menu_bookDocumentation
May 20, 2026

NavMesh Area Costs and Filters: Weighted Pathfinding and Agent Restrictions

NavMesh Areas in s&box can be used to mark sections as more costly to traverse (e.g. shallow water) or to prevent certain agents from entering specific areas. C…

menu_bookDocumentation
May 5, 2026

Clutter System — scattering grass, rocks, and debris with GPU instancing

Clutter System — Scattering Grass, Rocks, and Debris The Clutter System scatters large amounts of small objects (grass, rocks, debris) across a scene using GPU-…

menu_bookDocumentation
May 3, 2026

Localization (i18n)

Localization (i18n) Support multiple languages using localization tokens. How It Works Use tokens starting with in UI strings. The system replaces them based on…

menu_bookDocumentation
May 5, 2026

Clothing - s&box Assets Documentation

Clothing The clothing system allows players to customize their Citizen character with various wearable items. Create hats, shirts, pants, accessories, and more.…

codeAPI Reference
May 3, 2026

GameManager.Spawn RPC with Ident Parsing

GameManager.Spawn RPC Broadcast RPC for spawning entities from string identifiers with automatic weapon pickup detection. Ident Format - Spawn a prop from asset…

codeAPI Reference
May 12, 2026

EmitMode enum

EmitMode Enum Controls how an emitter triggers when controlled via player input in s&box. Values Toggle Press once to turn on, press again to turn off. Hold Emi…

menu_bookDocumentation
May 5, 2026

Binary Serialization - s&box Documentation

Official s&box documentation for Binary Serialization - efficient data storage. Binary Serialization saves data in compact binary format. The system handles ver…

menu_bookDocumentation
May 3, 2026

Prefab Instance Overrides

Prefab Instance Overrides Customize individual prefab instances without affecting the original or other instances. Types of Overrides Visual Indicators Prefab i…