svg_resize · SVG Canvas MCP: Risk & Policy

WHAT IT DOES

What svg_resize does on SVG Canvas MCP

AI agents use svg_resize 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 svg_resize needs a policy

Resizing an SVG canvas modifies the graphic properties but is a reversible operation that does not delete data or execute arbitrary code. It falls under the Write category as it changes canvas dimensions non-destructively. Low severity because misuse only affects the visual output dimensions and can be easily corrected.

From the tool's definition Tool name 'svg_resize' and description indicating canvas size modification (Korean: '캔버스 크기를 변경합니다' = 'Changes/modifies the canvas size'). This is a reversible modification operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

svg_resize Rate-limited

svg_resize 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": {
    "svg_resize": {
      "limits": [
        {
          "counter": "svg_resize_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 svg_resize

What does the svg_resize tool do? +

캔버스 크기를 변경합니다. 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 svg_resize? +

Register the SVG Canvas MCP server in PolicyLayer and add a rule for svg_resize: 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 svg_resize? +

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

Can I rate-limit svg_resize? +

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

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

svg_resize 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.