marvin_start_tracking · Amazing Marvin MCP Server MCP

WHAT IT DOES

What marvin_start_tracking does on Amazing Marvin MCP Server

AI agents invoke marvin_start_tracking to trigger actions in Amazing Marvin MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why marvin_start_tracking needs a policy

Starting time tracking is an Execute action—it initiates an operation whose effects depend on which task is targeted. While reversible via 'marvin_stop_tracking', it commits an ongoing action outside the assistant's process and could misdirect effort if the wrong task is selected. Medium severity reflects that the blast radius is limited to task metadata; the impact is recoverable and does not modify or delete data.

From the tool's definition Tool name 'marvin_start_tracking' and sibling tools 'marvin_stop_tracking' and 'marvin_mark_done' indicate this starts time tracking for tasks.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

marvin_start_tracking Rate-limited

marvin_start_tracking stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "marvin_start_tracking": {
      "limits": [
        {
          "counter": "marvin_start_tracking_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Amazing Marvin MCP Server, so you can run agents against it safely.

FAQ

Questions about marvin_start_tracking

What does the marvin_start_tracking tool do? +

marvin_start_tracking. It is categorised as a Execute tool in the Amazing Marvin MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on marvin_start_tracking? +

Register the Amazing Marvin MCP Server MCP server in PolicyLayer and add a rule for marvin_start_tracking: 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 Amazing Marvin MCP Server. Nothing to install.

What risk level is marvin_start_tracking? +

marvin_start_tracking is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit marvin_start_tracking? +

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

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

marvin_start_tracking is provided by the Amazing Marvin MCP Server MCP server (lucadeleo/amazing-marvin-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.