update_article · ServiceNow MCP Server MCP: Risk & Policy

WHAT IT DOES

What update_article does on ServiceNow MCP Server

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

WHY IT NEEDS A POLICY

Why update_article needs a policy

This tool modifies existing knowledge base content in a business-critical system. While reversible, unauthorized or malicious updates could spread misinformation, compromise security documentation, or disrupt knowledge management workflows affecting many users.

From the tool's definition Tool name 'update_article' and description 'Update an existing knowledge article in ServiceNow' indicate modification of existing data. The action is reversible (articles can be edited further or reverted), distinguishing it from destructive operations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_article Rate-limited

update_article 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_article": {
      "limits": [
        {
          "counter": "update_article_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 Server, so you can run agents against it safely.

FAQ

Questions about update_article

What does the update_article tool do? +

Update an existing knowledge article in ServiceNow. It is categorised as a Write tool in the ServiceNow 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_article? +

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

What risk level is update_article? +

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

Can I rate-limit update_article? +

Yes. Add a rate_limit block to the update_article 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_article completely? +

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

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