# snow_manage_group_membership

Manage group memberships: add/remove users, list members

Agent View of the PolicyLayer registry record for `snow_manage_group_membership`. HTML page: https://policylayer.com/tools/serac/snow-manage-group-membership

## Facts

- Tool: `snow_manage_group_membership`
- 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_manage_group_membership",
    "arguments": {}
  }
}
```

## Why snow_manage_group_membership is rated Medium

Adding and removing users from groups modifies access control and permission structures in ServiceNow. While reversible (Write rather than Destructive), this has high severity because misuse could grant unauthorized access to sensitive enterprise data or remove legitimate user access, affecting multiple users and potentially disrupting operations.

From the tool's own definition: "Tool description states 'add/remove users' to group memberships, which are reversible create/modify operations on user-group relationships. The 'list members' capability is Read but does not elevate the overall classification."

## Use case

AI agents use snow_manage_group_membership 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_manage_group_membership": {
      "limits": [
        {
          "counter": "snow_manage_group_membership_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`

---

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