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s&box MCP Knowledgebase

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

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menu_bookDocumentation
May 4, 2026

Component.OnLoad: Async Loading Pattern — LoadingContext, Scene.IsLoading, and Loading Screen Integration

Component.OnLoad: Async Loading Pattern for Components Components can perform async loading work by overriding . This is the correct way to load resources async…

menu_bookDocumentation
May 4, 2026

Application Context Flags: IsDedicatedServer, IsHeadless, IsEditor, IsVR — Runtime Context in s&box

Application Context Flags: IsDedicatedServer, IsHeadless, IsEditor, IsVR is a static class in s&box that exposes runtime context flags. These are set at startup…

menu_bookDocumentation
May 4, 2026

Component.GetComponent, GetComponentInChildren, GetComponentInParent — FindMode and RequireComponent

Component.GetComponent, GetComponentInChildren, GetComponentInParent — FindMode Reference Components provide convenient lookup methods for finding other compone…

menu_bookDocumentation
May 4, 2026

Network Visibility Culling: AlwaysTransmit, INetworkVisible, CullDelay, and PVS-Based Object Culling

Network Visibility Culling: How s&box Decides What to Send to Each Client s&box has a built-in network visibility culling system that avoids sending updates for…

menu_bookDocumentation
May 4, 2026

RPC Security: How s&box Validates Incoming RPCs — Attribute Check, Permission Flags, Kick on Unauthorized

RPC Security: How s&box Validates Incoming RPCs Understanding how s&box validates incoming RPCs is important for writing secure multiplayer code. Validation Ste…

menu_bookDocumentation
May 4, 2026

s&box Input System: Down, Pressed, Released, AnalogLook, AnalogMove, Input Contexts, and Suppression

s&box Input System: Actions, Contexts, and How Input State Works The s&box static class provides all player input querying. Actions are defined in the project's…

menu_bookDocumentation
May 4, 2026

ISceneStartup: OnHostPreInitialize, OnHostInitialize, OnClientInitialize — Scene Initialization Hooks

ISceneStartup: Scene Initialization Hooks for GameObjectSystems provides callbacks for scene initialization events. It is intended for implementations, not comp…

menu_bookDocumentation
May 4, 2026

ComponentFlags: Hidden, NotSaved, NotNetworked, NotCloned — Controlling Component Behavior

ComponentFlags: Controlling Component Serialization, Networking, and Visibility is a flags enum on that controls how a component behaves in the editor, serializ…

menu_bookDocumentation
May 4, 2026

Scene Tick Order: Full Frame Pipeline — FixedUpdate, Update, PreRender, ProcessDeletes, and Stage Hooks

Scene Tick Order: The Full Frame Pipeline Understanding the exact order of operations in a scene tick is critical for writing correct game logic. Game Tick Orde…

menu_bookDocumentation
May 4, 2026

GameObject.Network Accessor — IsProxy, IsOwner, TakeOwnership, DropOwnership, Refresh, and IGameObjectNetworkEvents

GameObject.Network Accessor — Ownership, Spawning, and Proxy Detection is a that provides all network-related operations for a . It always resolves to the netwo…

menu_bookDocumentation
May 4, 2026

NetworkMode, NetworkFlags, OwnerTransfer, NetworkOrphaned — Complete Networking Enum Reference

NetworkMode, NetworkFlags, OwnerTransfer, and NetworkOrphaned — Complete Reference NetworkMode Controls how a is networked. Set via . Once a is a , only the hos…

menu_bookDocumentation
May 4, 2026

RPC Attributes: Rpc.Broadcast, Rpc.Host, Rpc.Owner — Targeting, NetFlags, and Rpc.FilterInclude/Exclude

RPC Attributes: Rpc.Broadcast, Rpc.Host, Rpc.Owner — Targeting and Flags s&box RPCs are declared with nested attributes on the static class. The old top-level a…

menu_bookDocumentation
May 4, 2026

[Sync] Attribute: SyncFlags.FromHost, SyncFlags.Interpolate, SyncFlags.Query — How Property Sync Works

[Sync] Attribute: SyncFlags and How Property Synchronization Works The attribute marks a component property for automatic network synchronization from the owner…

menu_bookDocumentation
May 4, 2026

Component Lifecycle: Full Callback Order — OnAwake, OnEnabled, OnStart, OnUpdate, OnFixedUpdate, OnDisabled, OnDestroy

Component Lifecycle: Full Callback Order s&box components have a well-defined lifecycle. Understanding the exact order prevents subtle bugs. Callback Order Key …

menu_bookDocumentation
May 4, 2026

DisplayInfo: Querying s&box Type and Member Metadata (Title, Icon, Group, Tags)

DisplayInfo: Querying s&box Type and Member Metadata is an s&box struct that aggregates all display-related metadata from attributes on a type or member. The ed…

menu_bookDocumentation
May 4, 2026

FileSystem: Mounted, Data, OrganizationData, Cache, and Memory Filesystems

FileSystem: Accessing Game Files in s&box s&box provides several filesystem access points through the static class. Available Filesystems Reading and Writing Fi…

menu_bookDocumentation
May 4, 2026

Graphics.Draw, Blit, DrawText, DrawIcon, and GrabFrameTexture — Custom Rendering APIs

Graphics.Draw and Graphics.Blit: Custom Rendering in s&box provides low-level rendering APIs for drawing custom geometry, screen-space quads, and text. All call…

menu_bookDocumentation
May 4, 2026

GameObjectFlags: DontDestroyOnLoad, NotNetworked, Absolute, and Destroy vs DestroyImmediate

GameObjectFlags: Controlling GameObject Behavior is a flags enum that controls special behaviors for GameObjects. Values Usage ```csharp // Survive scene loads …

menu_bookDocumentation
May 4, 2026

Inspector Attributes: Group, Title, Icon, Range, InfoBox, Feature, and More

Inspector Attributes: Controlling How Properties Appear in the Editor s&box provides a rich set of attributes to control how component properties appear in the …

menu_bookDocumentation
May 4, 2026

Scene.Load and Scene.LoadFromFile: Loading Scenes, DontDestroyOnLoad, and the Loading Sequence

Scene.Load and Scene.LoadFromFile: Loading Scenes Locally loads a scene file into the current scene. This is a local-only operation — it does not bring other cl…