unity_probuilder_subdivide
Subdivide faces (connect edge midpoints), increasing mesh density.
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What unity_probuilder_subdivide does on Unity MCP Server
AI agents use unity_probuilder_subdivide to create or update resources in Unity MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Unity MCP Server environment.
Why unity_probuilder_subdivide is rated Medium
This tool modifies mesh data (writes/updates geometry) but the change is reversible—subdivisions can be undone or the asset can be reloaded. It does not delete or destroy data (ruling out Destructive), does not execute arbitrary code (ruling out Execute), and does not involve financial transactions.
From the tool's definition The tool 'unity_probuilder_subdivide' modifies mesh geometry by subdividing faces and increasing mesh density. This is a reversible data modification operation on 3D assets within the Unity Editor.
Attacks that exploit this kind of access
The rule that runs unity_probuilder_subdivide safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Unity MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For unity_probuilder_subdivide, this is the rule to start with:
unity_probuilder_subdivide 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 Unity MCP Server, apply this rule, and every unity_probuilder_subdivide call is checked against it from then on.
Questions about unity_probuilder_subdivide
Subdivide faces (connect edge midpoints), increasing mesh density. It is categorised as a Write tool in the Unity MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Unity MCP Server MCP server in PolicyLayer and add a rule for unity_probuilder_subdivide: 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 Unity MCP Server. Nothing to install.
unity_probuilder_subdivide 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 unity_probuilder_subdivide 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 unity_probuilder_subdivide. 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.
unity_probuilder_subdivide is provided by the Unity MCP Server MCP server (anklebreaker-studio/unity-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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