update_epic

What update_epic does on ServiceNow MCP Server

AI agents use update_epic 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 update_epic is rated Medium

This tool creates or modifies data (an epic record in ServiceNow) in a reversible manner. Updates can typically be undone or corrected, so it does not rise to Destructive. The blast radius is medium because misuse could corrupt project/epic data affecting team planning, but the impact is limited to modifiable records within a single system and does not involve deletion, code execution, or financial transactions.

From the tool's definition Tool name 'update_epic' and description 'Update an epic' indicate modification of existing data. The description explicitly notes '(requires WRITE_ENABLED=true)', confirming this is a write operation that modifies data reversibly.

The rule that runs update_epic safely

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

{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_epic": {
      "limits": [
        {
          "counter": "update_epic_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

Questions about update_epic