set_bodygroup
Show/hide a bodygroup on a SkinnedModelRenderer (e.g. hide hands when holding a tool, swap head variants). Provide value (int index) or choice (string name).
This record as markdown: /tools/sbox/set-bodygroup.md
What set_bodygroup does on Sbox
AI agents use set_bodygroup 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.
Why set_bodygroup is rated Medium
This tool creates or modifies data (the visibility/variant state of a bodygroup) in a reversible manner. It does not execute arbitrary code, delete data, or trigger financial operations. While it affects the visual appearance of game objects, the change is easily undoable by calling the tool again with different parameters, making it a Write-category action rather than Execute or Destructive.
From the tool's definition The tool modifies the visual state of a SkinnedModelRenderer by showing/hiding bodygroups or swapping variants. The description explicitly states 'Show/hide' and 'swap', indicating reversible state changes.
Attacks that exploit this kind of access
The rule that runs set_bodygroup 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 set_bodygroup, this is the rule to start with:
set_bodygroup 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Sbox, apply this rule, and every set_bodygroup call is checked against it from then on.
Questions about set_bodygroup
Show/hide a bodygroup on a SkinnedModelRenderer (e.g. hide hands when holding a tool, swap head variants). Provide value (int index) or choice (string name). 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.
Register the Sbox MCP server in PolicyLayer and add a rule for set_bodygroup: 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.
set_bodygroup is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the set_bodygroup 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.
Set action: deny in the PolicyLayer policy for set_bodygroup. 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.
set_bodygroup 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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