add-note · Anki Connect MCP Server MCP: Risk & Policy

WHAT IT DOES

What add-note does on Anki Connect MCP Server

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

WHY IT NEEDS A POLICY

Why add-note needs a policy

This tool creates new flashcard notes in Anki, which is a reversible data modification. It does not execute arbitrary code, delete data, or move money. The blast radius is limited to adding unwanted flashcards to the user's deck, which is correctable by deleting them. Severity is medium because mass note injection could clutter the user's study system, but the effect is easily remedied.

From the tool's definition Tool name 'add-note' and description 'Add a new note to Anki' indicates creation of new data. The tool requires 'deckName, modelName and additional details' which are parameters for creating a new flashcard note in the Anki system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add-note Rate-limited

add-note 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": {
    "add-note": {
      "limits": [
        {
          "counter": "add-note_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 Connect MCP Server, so you can run agents against it safely.

FAQ

Questions about add-note

What does the add-note tool do? +

Add a new note to Anki. Requires a precise deckName, modelName and additional details to add. It is categorised as a Write tool in the Anki Connect 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 add-note? +

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

What risk level is add-note? +

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

Can I rate-limit add-note? +

Yes. Add a rate_limit block to the add-note 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 add-note completely? +

Set action: deny in the PolicyLayer policy for add-note. 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 add-note? +

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