# update

A write tool on the Vultr MCP MCP server.

Agent View of the PolicyLayer registry record for `update`. HTML page: https://policylayer.com/tools/rsp2k-mcp-vultr/update

## Facts

- Tool: `update`
- Server: Vultr MCP (`rsp2k/mcp-vultr`) — https://policylayer.com/tools/rsp2k-mcp-vultr.md
- Homepage: https://github.com/rsp2k/mcp-vultr
- 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": "update",
    "arguments": {}
  }
}
```

## Why update is rated Medium

The tool name 'update' strongly suggests a write/modify operation. However, with no description provided, the exact behavior is unknown. In the context of Vultr cloud infrastructure management, 'update' likely modifies an existing resource (e.g., instance, DNS record, database config). Since the description is empty, confidence is low.

From the tool's own definition: "Tool name is 'update'; description is empty or uninformative."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Vultr MCP (283)

- `delete` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete.md
- `delete_bare_metal_server` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-bare-metal-server.md
- `delete_cdn_ssl_certificate` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-cdn-ssl-certificate.md
- `delete_cdn_zone` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-cdn-zone.md
- `delete_collection` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-collection.md
- `delete_connection_pool` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-connection-pool.md
- `delete_dns_domain` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-dns-domain.md
- `delete_dns_record` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-dns-record.md
- `delete_domain` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-domain.md
- `delete_export` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-export.md
- `delete_forwarding_rule` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-forwarding-rule.md
- `delete_group` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-group.md
- `delete_ipv4` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-ipv4.md
- `delete_iso` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-iso.md
- `delete_kafka_topic` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-kafka-topic.md
- `delete_kubernetes_cluster` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-kubernetes-cluster.md
- `delete_kubernetes_cluster_with_resources` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-kubernetes-cluster-with-resources.md
- `delete_kubernetes_node` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-kubernetes-node.md
- `delete_kubernetes_node_pool` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-kubernetes-node-pool.md
- `delete_logical_database` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-logical-database.md
- `delete_record` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-record.md
- `delete_rule` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-rule.md
- `delete_serverless_inference` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-serverless-inference.md
- `delete_ssl` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-ssl.md
- `delete_startup_script` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-startup-script.md
- `delete_user` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-user.md
- `delete_vpc2` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-vpc2.md
- `purge_cdn_zone` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/purge-cdn-zone.md
- `remove_ip_whitelist_entry` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/remove-ip-whitelist-entry.md
- `remove_resource_from_collection` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/remove-resource-from-collection.md
- …and 253 more: https://policylayer.com/tools/rsp2k-mcp-vultr.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=rsp2k-mcp-vultr · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/rsp2k-mcp-vultr