servicenow_add_comment

Add a comment or work note to a ServiceNow incident. Comments are visible to the caller; work notes are internal only.

SERVERLocal SOURCElocal-mcp

Medium RISK CLASS

Category Write

Parameters 32 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/com-local-mcp-local-mcp/servicenow-add-comment.md

WHAT IT DOES

What servicenow_add_comment does on Local

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

Parameter	Type	Required	Description
`text`	string	Yes	Comment or work note text
`type`	string	—	'comment' (visible to caller, default) or 'work_note' (internal only)
`sys_id`	string	Yes	Incident sys_id from servicenow_get_incident

Parameters from the server's own tool schema.

RISK

Why servicenow_add_comment is rated Medium

This tool creates or modifies data (adds comments/work notes to incidents) but does not delete or irreversibly destroy information, nor does it execute arbitrary code or move financial assets.

From the tool's definition Tool description states 'Add a comment or work note to a ServiceNow incident', which modifies incident data by appending comments or internal notes. This is a reversible write operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs servicenow_add_comment safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Local, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For servicenow_add_comment, this is the rule to start with:

servicenow_add_comment Rate-limited

servicenow_add_comment 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": {
    "servicenow_add_comment": {
      "limits": [
        {
          "counter": "servicenow_add_comment_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Local, apply this rule, and every servicenow_add_comment call is checked against it from then on.

FAQ

Questions about servicenow_add_comment

What does the servicenow_add_comment tool do? +

Add a comment or work note to a ServiceNow incident. Comments are visible to the caller; work notes are internal only. It is categorised as a Write tool in the Local MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does servicenow_add_comment accept? +

servicenow_add_comment accepts 3 parameters: text, type, sys_id. Required: text, sys_id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on servicenow_add_comment? +

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

What risk level is servicenow_add_comment? +

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

Can I rate-limit servicenow_add_comment? +

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

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

servicenow_add_comment is provided by the Local MCP server (local-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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