bulk_set_properties · ServiceNow- MCP: Risk & Policy

WHAT IT DOES

What bulk_set_properties does on ServiceNow-MCP

AI agents use bulk_set_properties 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 bulk_set_properties needs a policy

This tool creates or modifies data (system properties) reversibly without permanently deleting or executing arbitrary code. The 'bulk' aspect elevates severity from medium to high because misconfiguration of multiple system properties could impact service availability, authentication, or operational workflows.

From the tool's definition Tool description explicitly states "Create or update multiple system properties" and is tagged **[Write]**. The bulk nature means a single operation can modify many configuration settings across the ServiceNow instance.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

bulk_set_properties Rate-limited

bulk_set_properties 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": {
    "bulk_set_properties": {
      "limits": [
        {
          "counter": "bulk_set_properties_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 bulk_set_properties

What does the bulk_set_properties tool do? +

Create or update multiple system properties in a single operation. [Write]. 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 bulk_set_properties? +

Register the ServiceNow- MCP server in PolicyLayer and add a rule for bulk_set_properties: 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 bulk_set_properties? +

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

Can I rate-limit bulk_set_properties? +

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

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

bulk_set_properties 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.