# create_rest_message

Create a new outbound REST Message definition (requires WRITE_ENABLED=true)

Agent View of the PolicyLayer registry record for `create_rest_message`. HTML page: https://policylayer.com/tools/tedorigawa001-servicenow-mcp/create-rest-message

## Facts

- Tool: `create_rest_message`
- Server: ServiceNow-MCP (`tedorigawa001/servicenow-mcp`) — https://policylayer.com/tools/tedorigawa001-servicenow-mcp.md
- Homepage: https://github.com/tedorigawa001/ServiceNow-MCP
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "create_rest_message",
    "arguments": {}
  }
}
```

## Why create_rest_message is rated Medium

This tool creates new REST message definitions in ServiceNow, which are configuration objects that define outbound integrations and API calls. While reversible (can be deleted), creating REST messages can establish new external integrations, webhooks, or API endpoints that could be exploited to exfiltrate data or trigger malicious actions if misconfigured by an AI agent.

From the tool's own definition: "Tool name 'create_rest_message' and description 'Create a new outbound REST Message definition' indicate creation of new configuration objects in ServiceNow."

## Use case

AI agents use create_rest_message 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.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches ServiceNow-MCP:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_rest_message": {
      "limits": [
        {
          "counter": "create_rest_message_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on ServiceNow-MCP (494)

- `cancel_request` — Destructive — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/cancel-request.md
- `delete_attachment` — Destructive — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/delete-attachment.md
- `delete_system_property` — Destructive — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/delete-system-property.md
- `delete_uib_page` — Destructive — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/delete-uib-page.md
- `remove_user_from_group` — Destructive — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/remove-user-from-group.md
- `restore_archived_record` — Destructive — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/restore-archived-record.md
- `rollback_deployment` — Destructive — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/rollback-deployment.md
- `set_cleanup_rule_active` — Destructive — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/set-cleanup-rule-active.md
- `set_destroy_rule_active` — Destructive — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/set-destroy-rule-active.md
- `commit_changeset` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/commit-changeset.md
- `create_business_rule` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/create-business-rule.md
- `create_client_script` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/create-client-script.md
- `create_flow_action` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/create-flow-action.md
- `create_scheduled_job` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/create-scheduled-job.md
- `create_script_include` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/create-script-include.md
- `execute_background_script` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/execute-background-script.md
- `fire_event` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/fire-event.md
- `ml_detect_anomalies` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/ml-detect-anomalies.md
- `ml_train_anomaly_detector` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/ml-train-anomaly-detector.md
- `ml_train_change_risk` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/ml-train-change-risk.md
- `ml_train_incident_classifier` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/ml-train-incident-classifier.md
- `publish_changeset` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/publish-changeset.md
- `run_aggregate_query` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/run-aggregate-query.md
- `run_atf_suite` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/run-atf-suite.md
- `run_atf_test` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/run-atf-test.md
- `run_discovery_scan` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/run-discovery-scan.md
- `run_security_playbook` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/run-security-playbook.md
- `run_transform_map` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/run-transform-map.md
- `scan_vulnerabilities` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/scan-vulnerabilities.md
- `smart_query` — Execute — https://policylayer.com/tools/tedorigawa001-servicenow-mcp/smart-query.md
- …and 464 more: https://policylayer.com/tools/tedorigawa001-servicenow-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=tedorigawa001-servicenow-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/tedorigawa001-servicenow-mcp