scrobble_start · Trakt MCP Server MCP: Risk & Policy

WHAT IT DOES

What scrobble_start does on Trakt MCP Server

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

WHY IT NEEDS A POLICY

Why scrobble_start needs a policy

This tool records/writes playback state to Trakt.tv when viewing begins. It creates a scrobbling session entry, which is a reversible write operation (sessions can be stopped or deleted). No destructive, financial, or code execution aspects are involved.

From the tool's definition Start scrobbling — call when playback begins to track what you are watching

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

scrobble_start Rate-limited

scrobble_start 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": {
    "scrobble_start": {
      "limits": [
        {
          "counter": "scrobble_start_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 Trakt MCP Server, so you can run agents against it safely.

FAQ

Questions about scrobble_start

What does the scrobble_start tool do? +

Start scrobbling — call when playback begins to track what you are watching. It is categorised as a Write tool in the Trakt 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 scrobble_start? +

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

What risk level is scrobble_start? +

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

Can I rate-limit scrobble_start? +

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

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

scrobble_start is provided by the Trakt MCP Server MCP server (kud/mcp-trakt). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.