update_kb_article · InvGate Service Desk MCP: Risk & Policy

WHAT IT DOES

What update_kb_article does on InvGate Service Desk

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

WHY IT NEEDS A POLICY

Why update_kb_article needs a policy

This tool creates or modifies data reversibly, fitting the Write category. It does not delete data (Destructive), does not move money (Financial), and does not execute arbitrary code (Execute). An AI agent could misuse this by updating critical KB articles with incorrect information, potentially misleading users relying on that documentation, warranting medium severity.

From the tool's definition The tool name and description explicitly state "Update a Knowledge Base article". This is a write operation that modifies existing data (the KB article content) in a reversible manner.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_kb_article Rate-limited

update_kb_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_kb_article": {
      "limits": [
        {
          "counter": "update_kb_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 InvGate Service Desk, so you can run agents against it safely.

FAQ

Questions about update_kb_article

What does the update_kb_article tool do? +

Update a Knowledge Base article (author_id required by the API). It is categorised as a Write tool in the InvGate Service Desk 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_kb_article? +

Register the InvGate Service Desk MCP server in PolicyLayer and add a rule for update_kb_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 InvGate Service Desk. Nothing to install.

What risk level is update_kb_article? +

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

Can I rate-limit update_kb_article? +

Yes. Add a rate_limit block to the update_kb_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_kb_article completely? +

Set action: deny in the PolicyLayer policy for update_kb_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_kb_article? +

update_kb_article is provided by the InvGate Service Desk MCP server (oci:ghcr.io/tracegazer/invgate-service-desk-mcp:0.2.0). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.