layer_create · SVG Canvas MCP: Risk & Policy

WHAT IT DOES

What layer_create does on SVG Canvas MCP

AI agents use layer_create 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_create needs a policy

This tool creates a new layer in an SVG graphics application, which is a reversible write operation. It does not execute arbitrary code, delete data, or cause financial transactions. The blast radius is minimal—a mistaken layer creation can be easily undone or deleted. Confidence is high because the intent is clear from both the name and the action description.

From the tool's definition Tool name 'layer_create' and description '새 레이어를 생성합니다' (creates a new layer) indicate creation of a new graphical element within an SVG canvas context.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

layer_create Rate-limited

layer_create 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_create": {
      "limits": [
        {
          "counter": "layer_create_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_create

What does the layer_create tool do? +

새 레이어를 생성합니다. 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_create? +

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

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

Can I rate-limit layer_create? +

Yes. Add a rate_limit block to the layer_create 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_create completely? +

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

layer_create 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.