update_monitor · Parallel-Poke MCP: Risk & Policy

WHAT IT DOES

What update_monitor does on Parallel-Poke MCP

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

WHY IT NEEDS A POLICY

Why update_monitor needs a policy

The tool creates or modifies data reversibly by changing monitor parameters such as cadence (polling frequency), webhook endpoints, event notification types, and metadata. This is a Write operation—configuration changes can be undone or modified again. It is not Destructive because monitors are not deleted, nor Execute because the tool doesn't run arbitrary code or shell commands.

From the tool's definition Tool name is 'update_monitor' and description states it modifies monitor configuration ('Update a monitor (cadence, webhook_url/event_types, metadata)'). These are reversible changes to existing monitor settings.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_monitor Rate-limited

update_monitor 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_monitor": {
      "limits": [
        {
          "counter": "update_monitor_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 Parallel-Poke MCP, so you can run agents against it safely.

FAQ

Questions about update_monitor

What does the update_monitor tool do? +

Update a monitor (cadence, webhook_url/event_types, metadata). It is categorised as a Write tool in the Parallel-Poke MCP 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_monitor? +

Register the Parallel-Poke MCP server in PolicyLayer and add a rule for update_monitor: 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 Parallel-Poke MCP. Nothing to install.

What risk level is update_monitor? +

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

Can I rate-limit update_monitor? +

Yes. Add a rate_limit block to the update_monitor 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_monitor completely? +

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

update_monitor is provided by the Parallel-Poke MCP server (konarkm/parallel-poke-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.