unity_ui_create_canvas

Create a UI Canvas with an EventSystem. Render modes:

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-ui-create-canvas.md

WHAT IT DOES

What unity_ui_create_canvas does on Unity MCP Server

AI agents use unity_ui_create_canvas 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_ui_create_canvas is rated Medium

This tool creates new UI elements (Canvas and EventSystem) in a Unity scene, which is a reversible write operation. It modifies the project state by adding new objects but does not execute arbitrary code, delete data, or move financial resources. The blast radius is medium because incorrect canvas creation could require manual cleanup but wouldn't cause data loss or system-level damage.

From the tool's definition Tool name 'unity_ui_create_canvas' and description indicate creation of a UI Canvas with EventSystem in a Unity project. The verb 'create' and the context of adding new game objects to a scene demonstrates data creation.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

unity_ui_create_canvas Rate-limited

unity_ui_create_canvas 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_ui_create_canvas": {
      "limits": [
        {
          "counter": "unity_ui_create_canvas_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_ui_create_canvas call is checked against it from then on.

FAQ

Questions about unity_ui_create_canvas

What does the unity_ui_create_canvas tool do? +

Create a UI Canvas with an EventSystem. Render modes:. 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_ui_create_canvas? +

Register the Unity MCP Server MCP server in PolicyLayer and add a rule for unity_ui_create_canvas: 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_ui_create_canvas? +

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

Can I rate-limit unity_ui_create_canvas? +

Yes. Add a rate_limit block to the unity_ui_create_canvas 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_ui_create_canvas completely? +

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

unity_ui_create_canvas 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.

KEEP EXPLORING

More on Unity MCP Server, and thousands of servers like it.

This server

All 338 Unity MCP Server tools →

Across the catalogue

create_task on 0rca Dojo MCP Server →create-task on Kanban MCP Server →create_package_backup on Android Forensics ADB MCP Server →create_project on Stitch MCP Server → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →