object_group · SVG Canvas MCP: Risk & Policy

WHAT IT DOES

What object_group does on SVG Canvas MCP

AI agents use object_group to create or update resources in SVG Canvas MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your SVG Canvas MCP environment.

WHY IT NEEDS A POLICY

Why object_group needs a policy

Grouping objects is a reversible Write operation that modifies the SVG structure but does not execute external code, delete data, or cause financial impact. The grouping can be ungrouped, making this a standard non-destructive edit operation typical of graphics manipulation tools.

From the tool's definition Tool name 'object_group' combined with description stating it 'groups multiple objects together' indicates a reversible modification operation that creates a grouping structure in SVG.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

object_group Rate-limited

object_group 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": {
    "object_group": {
      "limits": [
        {
          "counter": "object_group_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches SVG Canvas MCP, so you can run agents against it safely.

FAQ

Questions about object_group

What does the object_group tool do? +

여러 객체를 그룹으로 묶습니다. It is categorised as a Write tool in the SVG Canvas MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on object_group? +

Register the SVG Canvas MCP server in PolicyLayer and add a rule for object_group: 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 SVG Canvas MCP. Nothing to install.

What risk level is object_group? +

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

Can I rate-limit object_group? +

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

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

object_group is provided by the SVG Canvas MCP server (kim62210/svg-canvas-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.