unity_physics_set_gravity

Get or set the global physics gravity vector.

SERVERUnity MCP Server SOURCEanklebreaker-studio/unity-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/anklebreaker-studio-unity-mcp-server/unity-physics-set-gravity.md

WHAT IT DOES

What unity_physics_set_gravity does on Unity MCP Server

AI agents use unity_physics_set_gravity 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.

RISK

Why unity_physics_set_gravity is rated Medium

This tool modifies a global physics parameter that affects all physics simulation behavior in the Unity scene. While not destructive (reversible by setting to a different value) and not immediately dangerous compared to execute/delete operations, misconfiguration could cause simulation failures, unexpected object behavior, or require significant rework to diagnose.

From the tool's definition Tool name 'unity_physics_set_gravity' explicitly indicates ability to 'set' gravity; description states 'Get or set the global physics gravity vector', confirming write capability.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

unity_physics_set_gravity Rate-limited

unity_physics_set_gravity 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": {
    "unity_physics_set_gravity": {
      "limits": [
        {
          "counter": "unity_physics_set_gravity_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 Unity MCP Server, apply this rule, and every unity_physics_set_gravity call is checked against it from then on.

FAQ

Questions about unity_physics_set_gravity

What does the unity_physics_set_gravity tool do? +

Get or set the global physics gravity vector. 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.

How do I enforce a policy on unity_physics_set_gravity? +

Register the Unity MCP Server MCP server in PolicyLayer and add a rule for unity_physics_set_gravity: 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.

What risk level is unity_physics_set_gravity? +

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

Can I rate-limit unity_physics_set_gravity? +

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

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

unity_physics_set_gravity 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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