create_placement_mode

SERVERSbox SOURCEsbox-mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/sbox/create-placement-mode.md

WHAT IT DOES

What create_placement_mode does on Sbox

AI agents use create_placement_mode to create or update resources in Sbox, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Sbox environment.

RISK

Why create_placement_mode is rated Medium

This tool generates/creates a placement component that handles preview and committing of object placement in the s&box game engine. It writes/creates new game objects and components. The ghost preview is NetworkMode.Never (client-only, non-persistent), but committing a placement writes new objects into the scene. No irreversible deletion or financial action is involved.

From the tool's definition Generate a ghost-preview + commit placement component... StartPlacing() clones GhostPrefab as a NetworkMode.Never preview... snap hit position to GridSize... move ghost

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_placement_mode safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Sbox, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_placement_mode, this is the rule to start with:

create_placement_mode Rate-limited

create_placement_mode stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_placement_mode": {
      "limits": [
        {
          "counter": "create_placement_mode_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Sbox, apply this rule, and every create_placement_mode call is checked against it from then on.

FAQ

Questions about create_placement_mode

What does the create_placement_mode tool do? +

Generate a ghost-preview + commit placement component (single class). StartPlacing() clones GhostPrefab as a NetworkMode.Never preview with colliders disabled and ModelRenderers tinted semi-transparent. Each frame while placing: ray from Scene.Camera.GetMouseRay(), IgnoreGameObjectHierarchy(ghost), snap hit position to GridSize (0 = freeform), move ghost. On Input.Pressed(. It is categorised as a Write tool in the Sbox MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_placement_mode? +

Register the Sbox MCP server in PolicyLayer and add a rule for create_placement_mode: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Sbox. Nothing to install.

What risk level is create_placement_mode? +

create_placement_mode is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_placement_mode? +

Yes. Add a rate_limit block to the create_placement_mode rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block create_placement_mode completely? +

Set action: deny in the PolicyLayer policy for create_placement_mode. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides create_placement_mode? +

create_placement_mode is provided by the Sbox MCP server (sbox-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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