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

PlayerController: Built-in First/Third Person Controller with Physics, Input, and Camera

The PlayerController component is a first and third person player controller built into s&box. It is physics-based (a special RigidBody) with built-in input, ca…

menu_bookDocumentation
May 20, 2026

Component Interfaces: ExecuteInEditor, ICollisionListener, IDamageable in s&box

s&box provides several Component interfaces for specific purposes: editor execution, collision handling, triggers, damage, and networking. ExecuteInEditor Compo…

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…

terminalCode Example
May 4, 2026

Sandbox: NPC system — Schedule, Task, and Layer architecture

NPC System — Schedule, Task, and Layer Architecture The Sandbox NPC system uses a layered architecture: Layers handle continuous behaviours (navigation, senses,…

menu_bookDocumentation
May 4, 2026

s&box Component Lifecycle: Exact Execution Order and Internal Guards

s&box Component Lifecycle: Exact Execution Order and Internal Guards Derived directly from and in the s&box engine source. Execution Order **** — Called once wh…

terminalCode Example
May 4, 2026

Sandbox: ThrusterEntity and WheelEntity — contraption propulsion with ClientInput bindings

ThrusterEntity and WheelEntity — Contraption Propulsion Components Both and implement and use properties so players can bind them to keys from a vehicle seat. T…

menu_bookDocumentation
May 5, 2026

Execution Order - s&box Documentation

Execution Order Understanding the order in which component methods are called. Flowchart Component lifecycle follows a specific order: Constructor — Object crea…

terminalCode Example
May 5, 2026

DebugOverlay — in-game visualization for spheres, lines, text, and traces

DebugOverlay — In-Editor and In-Game Visualization draws shapes, text, and traces in the world for debugging. All draws are temporary and disappear after a spec…

menu_bookDocumentation
May 4, 2026

Engine Frame Loop Order: FrameStart, Scene Tick, and FrameEnd Sequence

Engine Frame Loop Order The s&box engine frame loop runs in a specific order each frame. Understanding this is important for knowing when your code runs relativ…