update_myanimelist · MyAnimeList MCP Server MCP

WHAT IT DOES

What update_myanimelist does on MyAnimeList MCP Server

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

WHY IT NEEDS A POLICY

Why update_myanimelist needs a policy

The tool modifies existing anime list entries (updating watch status, scores, episodes watched, etc.) reversibly. This is a Write operation rather than Read (no side effects) or Destructive (changes are reversible). Severity is medium because misuse could alter a user's entire anime list, but the changes can be undone.

From the tool's definition Tool name 'update_myanimelist' indicates modification of user data in a MyAnimeList collection. The server description confirms it allows 'interact with' MyAnimeList, and sibling tools include both read operations (get_*) and destructive operations…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_myanimelist Rate-limited

update_myanimelist 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_myanimelist": {
      "limits": [
        {
          "counter": "update_myanimelist_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 MyAnimeList MCP Server, so you can run agents against it safely.

FAQ

Questions about update_myanimelist

What does the update_myanimelist tool do? +

update_myanimelist. It is categorised as a Write tool in the MyAnimeList 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_myanimelist? +

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

What risk level is update_myanimelist? +

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

Can I rate-limit update_myanimelist? +

Yes. Add a rate_limit block to the update_myanimelist 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_myanimelist completely? +

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

update_myanimelist is provided by the MyAnimeList MCP Server MCP server (nicoaguerrero/myanimelist-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.