# gcp_sql_list_users

List users in a Cloud SQL instance

Agent View of the PolicyLayer registry record for `gcp_sql_list_users`. HTML page: https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-sql-list-users

## Facts

- Tool: `gcp_sql_list_users`
- Server: GCP MCP Server (`ahmedselimmansor-ctrl/gcp_mcp_server`) — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server.md
- Homepage: https://github.com/ahmedselimmansor-ctrl/GCP_MCP_server
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

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

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

## Why gcp_sql_list_users is rated Low

This tool retrieves and enumerates user accounts from a Cloud SQL instance without creating, modifying, or deleting any resources. It is a pure read operation with minimal security impact—disclosure of user names alone has limited blast radius and does not enable unauthorized actions without additional credentials or vulnerabilities. Confidence is high because the name and description are explicit and unambiguous.

From the tool's own definition: "Tool name 'gcp_sql_list_users' and description 'List users in a Cloud SQL instance' indicate a retrieval operation with no modification or deletion of data."

## Use case

AI agents call gcp_sql_list_users to retrieve information from GCP MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "gcp_sql_list_users": {}
  }
}
```

## Other tools on GCP MCP Server (294)

- `gcp_agent_delete_app` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-agent-delete-app.md
- `gcp_agent_delete_data_store` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-agent-delete-data-store.md
- `gcp_agent_delete_endpoint` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-agent-delete-endpoint.md
- `gcp_agent_delete_model` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-agent-delete-model.md
- `gcp_agent_delete_reasoning_engine` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-agent-delete-reasoning-engine.md
- `gcp_appengine_delete_service` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-appengine-delete-service.md
- `gcp_appengine_delete_version` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-appengine-delete-version.md
- `gcp_ar_delete_package` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-ar-delete-package.md
- `gcp_ar_delete_repository` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-ar-delete-repository.md
- `gcp_ar_delete_version` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-ar-delete-version.md
- `gcp_bq_delete_dataset` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-bq-delete-dataset.md
- `gcp_bq_delete_table` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-bq-delete-table.md
- `gcp_compute_delete_disk` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-compute-delete-disk.md
- `gcp_compute_delete_instance` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-compute-delete-instance.md
- `gcp_compute_delete_snapshot` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-compute-delete-snapshot.md
- `gcp_compute_detach_disk` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-compute-detach-disk.md
- `gcp_dns_delete_managed_zone` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-dns-delete-managed-zone.md
- `gcp_dns_delete_record_set` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-dns-delete-record-set.md
- `gcp_firestore_delete_document` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-firestore-delete-document.md
- `gcp_functions_delete` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-functions-delete.md
- `gcp_gke_delete_cluster` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-gke-delete-cluster.md
- `gcp_gke_delete_node_pool` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-gke-delete-node-pool.md
- `gcp_iam_delete_custom_role` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-iam-delete-custom-role.md
- `gcp_iam_delete_service_account` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-iam-delete-service-account.md
- `gcp_iam_delete_service_account_key` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-iam-delete-service-account-key.md
- `gcp_iam_remove_iam_binding` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-iam-remove-iam-binding.md
- `gcp_lb_delete_backend_service` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-lb-delete-backend-service.md
- `gcp_lb_delete_forwarding_rule` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-lb-delete-forwarding-rule.md
- `gcp_lb_delete_target_pool` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-lb-delete-target-pool.md
- `gcp_logging_delete_log` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-logging-delete-log.md
- …and 264 more: https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-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`

---

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