enqueue_agent_run · Todos MCP: Risk & Policy

WHAT IT DOES

What enqueue_agent_run does on Todos

AI agents invoke enqueue_agent_run to trigger actions in Todos. 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 enqueue_agent_run needs a policy

The tool initiates execution of an agent process tied to a task or plan. While the actual commands executed depend on task configuration (reducing certainty vs. arbitrary code execution), queuing an agent run is fundamentally an Execute action that triggers external operations and code execution. The blast radius is high because a compromised agent run could perform unauthorized actions on the system.

From the tool's definition Tool description states it will "Queue a local agent run" - this triggers execution of agent code/commands whose effects depend on task configuration and agent implementation logic.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

enqueue_agent_run Rate-limited

enqueue_agent_run 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": {
    "enqueue_agent_run": {
      "limits": [
        {
          "counter": "enqueue_agent_run_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 Todos, so you can run agents against it safely.

FAQ

Questions about enqueue_agent_run

What does the enqueue_agent_run tool do? +

Queue a local agent run for a task or plan. It is categorised as a Execute tool in the Todos MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on enqueue_agent_run? +

Register the Todos MCP server in PolicyLayer and add a rule for enqueue_agent_run: 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 Todos. Nothing to install.

What risk level is enqueue_agent_run? +

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

Can I rate-limit enqueue_agent_run? +

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

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

enqueue_agent_run is provided by the Todos MCP server (@hasna/todos). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.