s&box MCP Knowledgebase

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

library_books 595 entries menu_book 352 Documentation code 133 API Reference terminal 100 Code Example groups 10 Community
Results for "fallback" 18 results closeClear
codeAPI Reference
May 12, 2026

s&box MountMetadata: Mount fallback rendering

MountMetadata Component API Reference MountMetadata is attached to mount-spawned props to show a graceful bounding box and hint the player which game it's from …

menu_bookDocumentation
May 12, 2026

LocalData static class: Server-side data persistence

LocalData Static Class API Reference LocalData provides server-side data persistence that survives server restarts. It's useful for storing configuration, ban l…

codeAPI Reference
May 12, 2026

s&box SpeechLayer: NPC speech and subtitles

NPC behavior layer that manages speech state, plays sound files, and renders subtitle text above the NPC's head. Properties Methods Behavior Resolves a random s…

groupsCommunity
May 3, 2026

Performance Best Practices

s&box Performance Best Practices Community guide for writing performant s&box code based on engine behavior and developer recommendations. Object Pooling Avoid …

terminalCode Example
May 3, 2026

Working with Models and Rendering

Guide to displaying 3D models in s&box. ModelRenderer Component Loading Models SkinnedMeshRenderer (Animated Models) Dynamic Model Creation LODs (Level of Detai…

menu_bookDocumentation
May 12, 2026

s&box SnapGrid: World-space snap grid overlay

SnapGrid: World-Space Snap Grid Overlay SnapGrid is a sealed class that manages a world-space snap grid overlay projected onto a surface plane. It is used by th…

menu_bookDocumentation
May 5, 2026

Network visibility — culling networked objects per client with INetworkVisible

Network Visibility — Culling Networked Objects Per Client Network visibility controls whether a networked object sends updates (Sync Vars, transforms) to a spec…

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…

codeAPI Reference
May 12, 2026

s&box SaveSystem: Scene save/load with metadata and event hooks

SaveSystem API Reference SaveSystem is a GameObjectSystem that captures differences between the current scene state and the original scene, enabling save/load f…

menu_bookDocumentation
May 12, 2026

s&box PackageSortMode: Package sorting modes

PackageSortMode Enum PackageSortMode is a typed enum for package sorting modes in the s&box package browser. It provides a type-safe way to specify how packages…

menu_bookDocumentation
May 12, 2026

s&box WorkshopSortMode: Workshop sorting modes

WorkshopSortMode Enum WorkshopSortMode is a friendly enum for Storage/Workshop queries in s&box. It wraps the underlying Storage.SortOrder enum with a simpler A…

menu_bookDocumentation
May 20, 2026

Network Visibility: Culling and INetworkVisible Interface

Network Visibility controls whether a networked object sends updates (Sync Vars, Transform) to a specific player. By default, all networked objects always trans…

menu_bookDocumentation
May 20, 2026

Scene Metadata: ISceneMetadata for Queryable Scene and Prefab Data

The interface in s&box allows Components to save data that can be accessed without loading a Scene or cloning a Prefab. Metadata is accessible via or directly. …

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…

menu_bookDocumentation
May 12, 2026

LocalData persistence for server-side data

LocalData Persistence in s&box LocalData provides server-side data persistence that survives server restarts. It's useful for storing configuration, ban lists, …

menu_bookDocumentation
May 20, 2026

Network Visibility: Per-Connection Object Culling with INetworkVisible

Network Visibility controls whether a networked object should be visible (receive ongoing network updates) for a specific player. By default, all networked obje…

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…

terminalCode Example
May 4, 2026

Sandbox: ISpawner interface — custom spawner pattern with ISpawnEvents

ISpawner Interface — Custom Spawner Pattern The interface defines the contract for anything that can be spawned via the spawn menu. Implementations include , , …