createDeck · Anki MCP Server MCP: Risk & Policy

WHAT IT DOES

What createDeck does on Anki MCP Server

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

WHY IT NEEDS A POLICY

Why createDeck needs a policy

This tool creates new data (a deck) in a reversible manner. The operation can be undone by deleting the deck later. It does not execute arbitrary code, destroy existing data irreversibly, involve financial transactions, or retrieve/query data.

From the tool's definition Tool name is 'createDeck' and description states 'Create a new Anki deck'. Creating a new deck is a write operation that adds a new data structure to the Anki database.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

createDeck Rate-limited

createDeck 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": {
    "createDeck": {
      "limits": [
        {
          "counter": "createdeck_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 Anki MCP Server, so you can run agents against it safely.

FAQ

Questions about createDeck

What does the createDeck tool do? +

Create a new Anki deck. It is categorised as a Write tool in the Anki MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on createDeck? +

Register the Anki MCP Server MCP server in PolicyLayer and add a rule for createDeck: 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 Anki MCP Server. Nothing to install.

What risk level is createDeck? +

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

Can I rate-limit createDeck? +

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

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

createDeck is provided by the Anki MCP Server MCP server (zlatanpham/anki-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.