# snow_create_catalog_client_script

Creates client scripts for catalog items to add custom JavaScript behavior to forms.

Agent View of the PolicyLayer registry record for `snow_create_catalog_client_script`. HTML page: https://policylayer.com/tools/serac/snow-create-catalog-client-script

## Facts

- Tool: `snow_create_catalog_client_script`
- Server: Serac (`serac-labs/serac`) — https://policylayer.com/tools/serac.md
- Homepage: https://github.com/serac-labs/serac
- 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": "snow_create_catalog_client_script",
    "arguments": {}
  }
}
```

## Why snow_create_catalog_client_script is rated Medium

This tool creates new client-side scripts in ServiceNow, which is a reversible write operation. However, the severity is high because maliciously injected client scripts could compromise form data handling, intercept user input, exfiltrate sensitive information, or manipulate catalog submissions in ways that could affect business processes or user trust.

From the tool's own definition: "Tool name includes 'create' and description states 'Creates client scripts for catalog items to add custom JavaScript behavior to forms.' This creates new code artifacts (client scripts) that modify form behavior."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Serac (431)

- `snow_cleanup_test_artifacts` — Destructive — https://policylayer.com/tools/serac/snow-cleanup-test-artifacts.md
- `snow_delete_attachment` — Destructive — https://policylayer.com/tools/serac/snow-delete-attachment.md
- `snow_inbound_email_action` — Destructive — https://policylayer.com/tools/serac/snow-inbound-email-action.md
- `snow_pa_indicator_manage` — Destructive — https://policylayer.com/tools/serac/snow-pa-indicator-manage.md
- `snow_rollback_deployment` — Destructive — https://policylayer.com/tools/serac/snow-rollback-deployment.md
- `snow_workflow_transition` — Destructive — https://policylayer.com/tools/serac/snow-workflow-transition.md
- `enterprise_tool_execute` — Execute — https://policylayer.com/tools/serac/enterprise-tool-execute.md
- `snow_auto_resolve_incident` — Execute — https://policylayer.com/tools/serac/snow-auto-resolve-incident.md
- `snow_automate_threat_response` — Execute — https://policylayer.com/tools/serac/snow-automate-threat-response.md
- `snow_batch_request` — Execute — https://policylayer.com/tools/serac/snow-batch-request.md
- `snow_change_manage` — Execute — https://policylayer.com/tools/serac/snow-change-manage.md
- `snow_cicd_deploy` — Execute — https://policylayer.com/tools/serac/snow-cicd-deploy.md
- `snow_collect_metric` — Execute — https://policylayer.com/tools/serac/snow-collect-metric.md
- `snow_confirm_script_execution` — Execute — https://policylayer.com/tools/serac/snow-confirm-script-execution.md
- `snow_convert_es6_to_es5` — Execute — https://policylayer.com/tools/serac/snow-convert-es6-to-es5.md
- `snow_convert_to_es5` — Execute — https://policylayer.com/tools/serac/snow-convert-to-es5.md
- `snow_create_mobile_action` — Execute — https://policylayer.com/tools/serac/snow-create-mobile-action.md
- `snow_create_vulnerability_scan` — Execute — https://policylayer.com/tools/serac/snow-create-vulnerability-scan.md
- `snow_custom_api` — Execute — https://policylayer.com/tools/serac/snow-custom-api.md
- `snow_elevate_role` — Execute — https://policylayer.com/tools/serac/snow-elevate-role.md
- `snow_employee_offboarding` — Execute — https://policylayer.com/tools/serac/snow-employee-offboarding.md
- `snow_employee_onboarding` — Execute — https://policylayer.com/tools/serac/snow-employee-onboarding.md
- `snow_execute_atf_test` — Execute — https://policylayer.com/tools/serac/snow-execute-atf-test.md
- `snow_execute_script` — Execute — https://policylayer.com/tools/serac/snow-execute-script.md
- `snow_execute_security_playbook` — Execute — https://policylayer.com/tools/serac/snow-execute-security-playbook.md
- `snow_execute_transform` — Execute — https://policylayer.com/tools/serac/snow-execute-transform.md
- `snow_fluent_build` — Execute — https://policylayer.com/tools/serac/snow-fluent-build.md
- `snow_fluent_install` — Execute — https://policylayer.com/tools/serac/snow-fluent-install.md
- `snow_fluent_transform` — Execute — https://policylayer.com/tools/serac/snow-fluent-transform.md
- `snow_github_deploy` — Execute — https://policylayer.com/tools/serac/snow-github-deploy.md
- …and 401 more: https://policylayer.com/tools/serac.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=serac · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/serac