anim_smil_add · SVG Canvas MCP: Risk & Policy

WHAT IT DOES

What anim_smil_add does on SVG Canvas MCP

AI agents use anim_smil_add 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 anim_smil_add needs a policy

This tool creates or modifies animation metadata/properties in SVG documents. It is reversible (animations can be removed or replaced via anim_remove), has no side effects beyond the SVG document itself, and does not execute arbitrary code, delete data irreversibly, or move money. It fits the Write category as a data modification tool with local scope and reversibility.

From the tool's definition Tool name 'anim_smil_add' and description indicate it 'adds SMIL animation' to objects. SMIL (Synchronized Multimedia Integration Language) is SVG's native animation format.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

anim_smil_add Rate-limited

anim_smil_add 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": {
    "anim_smil_add": {
      "limits": [
        {
          "counter": "anim_smil_add_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 anim_smil_add

What does the anim_smil_add tool do? +

객체에 SMIL 애니메이션을 추가합니다. (SVG 내장 애니메이션). 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 anim_smil_add? +

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

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

Can I rate-limit anim_smil_add? +

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

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

anim_smil_add 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.