update-note-fields · Anki Connect MCP Server MCP

WHAT IT DOES

What update-note-fields does on Anki Connect MCP Server

AI agents use update-note-fields 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 update-note-fields needs a policy

This tool modifies existing flashcard note data within Anki. While the changes are reversible and do not permanently destroy data, they constitute write operations that alter user content. The severity is medium because misuse could corrupt study materials or result in loss of note contents, but the damage is not irreversible (Anki typically maintains undo history).

From the tool's definition Tool name 'update-note-fields' and description 'Update fields in the Anki Note' indicates modification of existing data. The action is reversible (fields can be updated again or restored).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update-note-fields Rate-limited

update-note-fields 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": {
    "update-note-fields": {
      "limits": [
        {
          "counter": "update-note-fields_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 update-note-fields

What does the update-note-fields tool do? +

Update fields in the Anki Note. Must know the fields defined in the model prior to update. 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 update-note-fields? +

Register the Anki Connect MCP Server MCP server in PolicyLayer and add a rule for update-note-fields: 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 update-note-fields? +

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

Can I rate-limit update-note-fields? +

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

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

update-note-fields 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.