# update_instance

Partially updates the configuration settings of a Cloud SQL instance. * This tool returns a long-running operation. Use the get_operation tool to poll its status until the operation completes. * Some update operations, such as changing the edition upgrade or instance tier, etc might cause the instance to restart, resulting in downtime. Before you proceed with such operations, get confirmation from the user.

Agent View of the PolicyLayer registry record for `update_instance`. HTML page: https://policylayer.com/tools/com-googleapis-sqladmin-mcp/update-instance

## Facts

- Tool: `update_instance`
- Server: Mcp (`https://sqladmin.googleapis.com/mcp`) — https://policylayer.com/tools/com-googleapis-sqladmin-mcp.md
- Homepage: https://github.com/https://sqladmin.googleapis.com/mcp
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 12 (2 required)
- Recommended policy verdict: Rate-limited

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `tier` | string | no | Optional. The tier (or machine type) for this instance. format: db-custom-{CPUs}-{Memory}. |
| `edition` | string | no | Optional. The edition of the instance, can be ENTERPRISE or ENTERPRISE_PLUS. |
| `project` | string | yes | Required. Project ID of the project that contains the instance. |
| `instance` | string | yes | Required. Cloud SQL instance ID. This does not include the project ID. |
| `ipv4Enabled` | boolean | no | Optional. Whether to enable public IP for the instance. Enabling this flag makes the resource accessible from the public internet, which is a security risk if n |
| `psaMcpConfig` | object | no | Optional. Configuration for Private Service Access (PSA) instance update. |
| `pscMcpConfig` | object | no | Optional. Configuration for Private Service Connect (PSC) instance update. |
| `dataApiAccess` | string | no | Optional. The settings for controlling data API access to an instance. |
| `databaseFlags` | array | no | Optional. The database flags. |
| `dataDiskSizeGb` | string | no | Optional. Data disk size in GB. |
| `dataCacheConfig` | object | no | Optional. Configuration for the data cache. A data cache can improve performance for read-heavy workloads by caching frequently accessed data in-memory. |
| `googleMlIntegrationEnabled` | boolean | no | Optional. Enables Cloud SQL instances to connect to Vertex AI to pass requests for real-time predictions and insights to the AI. The default value is false. Thi |

Parameters from the server's own tool schema.

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "update_instance",
    "arguments": {
      "project": "<project>",
      "instance": "<instance>"
    }
  }
}
```

## Why update_instance is rated Medium

This tool modifies Cloud SQL instance configuration settings, which is a Write operation (creates or modifies data reversibly). It is not Destructive because updates are reversible and no data is permanently deleted. It is not Execute because it doesn't run arbitrary code or queries—it applies predefined configuration changes.

From the tool's own definition: "Tool description states it 'Partially updates the configuration settings of a Cloud SQL instance.' The word 'updates' indicates modification of existing data/configuration."

Risk signals: High parameter count (12 properties)

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Mcp (14)

- `execute_sql` — Execute — https://policylayer.com/tools/com-googleapis-sqladmin-mcp/execute-sql.md
- `execute_sql_readonly` — Execute — https://policylayer.com/tools/com-googleapis-sqladmin-mcp/execute-sql-readonly.md
- `postgres_upgrade_precheck` — Execute — https://policylayer.com/tools/com-googleapis-sqladmin-mcp/postgres-upgrade-precheck.md
- `get_instance` — Read — https://policylayer.com/tools/com-googleapis-sqladmin-mcp/get-instance.md
- `get_operation` — Read — https://policylayer.com/tools/com-googleapis-sqladmin-mcp/get-operation.md
- `list_instances` — Read — https://policylayer.com/tools/com-googleapis-sqladmin-mcp/list-instances.md
- `list_users` — Read — https://policylayer.com/tools/com-googleapis-sqladmin-mcp/list-users.md
- `clone_instance` — Write — https://policylayer.com/tools/com-googleapis-sqladmin-mcp/clone-instance.md
- `create_backup` — Write — https://policylayer.com/tools/com-googleapis-sqladmin-mcp/create-backup.md
- `create_instance` — Write — https://policylayer.com/tools/com-googleapis-sqladmin-mcp/create-instance.md
- `create_user` — Write — https://policylayer.com/tools/com-googleapis-sqladmin-mcp/create-user.md
- `import_data` — Write — https://policylayer.com/tools/com-googleapis-sqladmin-mcp/import-data.md
- `restore_backup` — Write — https://policylayer.com/tools/com-googleapis-sqladmin-mcp/restore-backup.md
- `update_user` — Write — https://policylayer.com/tools/com-googleapis-sqladmin-mcp/update-user.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=com-googleapis-sqladmin-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/com-googleapis-sqladmin-mcp