update_heartbeat · Pingera MCP Server MCP: Risk & Policy

WHAT IT DOES

What update_heartbeat does on Pingera MCP Server

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

WHY IT NEEDS A POLICY

Why update_heartbeat needs a policy

A heartbeat in monitoring systems typically tracks service/endpoint health status. Updating a heartbeat modifies monitoring state reversibly—it changes when the last successful check occurred or health status, which affects alerting and visibility but does not irreversibly delete data or execute arbitrary commands. This is a Write operation.

From the tool's definition Tool name is 'update_heartbeat'; sibling tools include 'create_heartbeat', 'create_check', 'create_alert', and 'add_incident_update', indicating this server manages monitoring state. The 'update_' prefix suggests modification of existing monitoring data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_heartbeat Rate-limited

update_heartbeat 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_heartbeat": {
      "limits": [
        {
          "counter": "update_heartbeat_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 Pingera MCP Server, so you can run agents against it safely.

FAQ

Questions about update_heartbeat

What does the update_heartbeat tool do? +

update_heartbeat. It is categorised as a Write tool in the Pingera 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_heartbeat? +

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

What risk level is update_heartbeat? +

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

Can I rate-limit update_heartbeat? +

Yes. Add a rate_limit block to the update_heartbeat 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_heartbeat completely? +

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

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