# cmdb_reconcile

Act on duplicate, stale, or orphan CIs — merge, retire, or remove (requires CMDB_WRITE_ENABLED). Supports dry_run mode.

Agent View of the PolicyLayer registry record for `cmdb_reconcile`. HTML page: https://policylayer.com/tools/servicenow-mcp-server/cmdb-reconcile

## Facts

- Tool: `cmdb_reconcile`
- Server: ServiceNow MCP Server (`@aartiq/servicenow-mcp`) — https://policylayer.com/tools/servicenow-mcp-server.md
- Install: `npx -y @aartiq/servicenow-mcp`
- Homepage: https://github.com/aartiq/servicenow-mcp
- Risk category: Destructive (Critical risk)
- Registry record: grade F, identity verified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Hidden

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

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

## Why cmdb_reconcile is rated Critical

While the tool offers a dry_run mode for safety, the primary action set includes irreversible deletion and retirement of configuration records. Misuse could orphan infrastructure tracking, break dependency chains, and cause cascading system failures. This is more severe than Execute because the effects are permanent data destruction in a critical system database, not just code execution with reversible outcomes.

From the tool's own definition: "Tool description states it can 'merge, retire, or remove' CIs (Configuration Items). 'Remove' and 'retire' are irreversible operations on critical infrastructure data."

## Use case

AI agents call cmdb_reconcile to permanently remove resources in ServiceNow MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "cmdb_reconcile"
  ]
}
```

## Other tools on ServiceNow MCP Server (414)

- `delete_attachment` — Destructive — https://policylayer.com/tools/servicenow-mcp-server/delete-attachment.md
- `delete_record` — Destructive — https://policylayer.com/tools/servicenow-mcp-server/delete-record.md
- `delete_system_property` — Destructive — https://policylayer.com/tools/servicenow-mcp-server/delete-system-property.md
- `delete_uib_page` — Destructive — https://policylayer.com/tools/servicenow-mcp-server/delete-uib-page.md
- `remove_user_from_group` — Destructive — https://policylayer.com/tools/servicenow-mcp-server/remove-user-from-group.md
- `rollback_changes` — Destructive — https://policylayer.com/tools/servicenow-mcp-server/rollback-changes.md
- `rollback_deployment` — Destructive — https://policylayer.com/tools/servicenow-mcp-server/rollback-deployment.md
- `batch_request` — Execute — https://policylayer.com/tools/servicenow-mcp-server/batch-request.md
- `categorize_incident` — Execute — https://policylayer.com/tools/servicenow-mcp-server/categorize-incident.md
- `commit_changeset` — Execute — https://policylayer.com/tools/servicenow-mcp-server/commit-changeset.md
- `create_business_rule` — Execute — https://policylayer.com/tools/servicenow-mcp-server/create-business-rule.md
- `create_flow_action` — Execute — https://policylayer.com/tools/servicenow-mcp-server/create-flow-action.md
- `create_scheduled_job` — Execute — https://policylayer.com/tools/servicenow-mcp-server/create-scheduled-job.md
- `create_script_include` — Execute — https://policylayer.com/tools/servicenow-mcp-server/create-script-include.md
- `create_ui_action` — Execute — https://policylayer.com/tools/servicenow-mcp-server/create-ui-action.md
- `execute_background_script` — Execute — https://policylayer.com/tools/servicenow-mcp-server/execute-background-script.md
- `execute_playbook` — Execute — https://policylayer.com/tools/servicenow-mcp-server/execute-playbook.md
- `execute_script` — Execute — https://policylayer.com/tools/servicenow-mcp-server/execute-script.md
- `fire_event` — Execute — https://policylayer.com/tools/servicenow-mcp-server/fire-event.md
- `fluent_build` — Execute — https://policylayer.com/tools/servicenow-mcp-server/fluent-build.md
- `fluent_explain` — Execute — https://policylayer.com/tools/servicenow-mcp-server/fluent-explain.md
- `fluent_init` — Execute — https://policylayer.com/tools/servicenow-mcp-server/fluent-init.md
- `fluent_validate` — Execute — https://policylayer.com/tools/servicenow-mcp-server/fluent-validate.md
- `ml_detect_anomalies` — Execute — https://policylayer.com/tools/servicenow-mcp-server/ml-detect-anomalies.md
- `ml_train_anomaly_detector` — Execute — https://policylayer.com/tools/servicenow-mcp-server/ml-train-anomaly-detector.md
- `ml_train_change_risk` — Execute — https://policylayer.com/tools/servicenow-mcp-server/ml-train-change-risk.md
- `ml_train_incident_classifier` — Execute — https://policylayer.com/tools/servicenow-mcp-server/ml-train-incident-classifier.md
- `publish_changeset` — Execute — https://policylayer.com/tools/servicenow-mcp-server/publish-changeset.md
- `run_aggregate_query` — Execute — https://policylayer.com/tools/servicenow-mcp-server/run-aggregate-query.md
- `run_atf_suite` — Execute — https://policylayer.com/tools/servicenow-mcp-server/run-atf-suite.md
- …and 384 more: https://policylayer.com/tools/servicenow-mcp-server.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`

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