add_terrain_trail

Carve a trail depression between two points on MapBuilder.

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/add-terrain-trail.md

WHAT IT DOES

What add_terrain_trail does on Sbox

AI agents use add_terrain_trail 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 add_terrain_trail is rated Medium

This tool creates new terrain features (trail depressions) in the game world, which is reversible modification of game state data. It does not execute arbitrary code, delete data permanently, or trigger financial transactions. It fits the Write category as it creates/modifies game objects.

From the tool's definition Tool name 'add_terrain_trail' and description 'Carve a trail depression between two points on MapBuilder' indicate creation/modification of game world terrain data. The verb 'carve' and 'add' show data is being created or altered.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs add_terrain_trail 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 add_terrain_trail, this is the rule to start with:

add_terrain_trail Rate-limited

add_terrain_trail 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": {
    "add_terrain_trail": {
      "limits": [
        {
          "counter": "add_terrain_trail_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 add_terrain_trail call is checked against it from then on.

FAQ

Questions about add_terrain_trail

What does the add_terrain_trail tool do? +

Carve a trail depression between two points on MapBuilder. 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 add_terrain_trail? +

Register the Sbox MCP server in PolicyLayer and add a rule for add_terrain_trail: 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 add_terrain_trail? +

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

Can I rate-limit add_terrain_trail? +

Yes. Add a rate_limit block to the add_terrain_trail 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 add_terrain_trail completely? +

Set action: deny in the PolicyLayer policy for add_terrain_trail. 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 add_terrain_trail? +

add_terrain_trail 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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