close_incident · ServiceNow- MCP: Risk & Policy

WHAT IT DOES

What close_incident does on ServiceNow-MCP

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

WHY IT NEEDS A POLICY

Why close_incident needs a policy

This tool modifies incident records by changing their status to closed. While the change is reversible (incidents can be reopened), it represents a significant operational action that could impact incident tracking, SLA compliance, and audit trails. Categorized as Write rather than Destructive because closure is reversible.

From the tool's definition Tool name 'close_incident' and description 'Close a resolved incident (requires WRITE_ENABLED=true)' indicate modification of incident state. The WRITE_ENABLED flag confirms this is a write operation that changes data in ServiceNow.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

close_incident Rate-limited

close_incident 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": {
    "close_incident": {
      "limits": [
        {
          "counter": "close_incident_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 ServiceNow-MCP, so you can run agents against it safely.

FAQ

Questions about close_incident

What does the close_incident tool do? +

Close a resolved incident (requires WRITE_ENABLED=true). It is categorised as a Write tool in the ServiceNow-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 close_incident? +

Register the ServiceNow- MCP server in PolicyLayer and add a rule for close_incident: 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 ServiceNow-MCP. Nothing to install.

What risk level is close_incident? +

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

Can I rate-limit close_incident? +

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

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

close_incident is provided by the ServiceNow- MCP server (tedorigawa001/servicenow-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.