layer_reorder · SVG Canvas MCP: Risk & Policy

WHAT IT DOES

What layer_reorder does on SVG Canvas MCP

AI agents use layer_reorder 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 layer_reorder needs a policy

Reordering layers modifies the structure of an SVG graphic by changing the z-order of elements, which is a reversible write operation. It does not execute arbitrary code, delete data irreversibly, or trigger external operations. The blast radius is low since the change can be easily undone by reordering again.

From the tool's definition Tool name 'layer_reorder' and description '레이어 순서를 변경합니다' (changes layer order) indicates modification of SVG layer properties. This is a reversible operation that reorders existing layers without deleting or destroying data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

layer_reorder Rate-limited

layer_reorder 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": {
    "layer_reorder": {
      "limits": [
        {
          "counter": "layer_reorder_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 layer_reorder

What does the layer_reorder tool do? +

레이어 순서를 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 layer_reorder? +

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

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

Can I rate-limit layer_reorder? +

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

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

layer_reorder 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.