start_version_upgrade

Start a database engine version upgrade.

SERVERVultr MCP SOURCErsp2k/mcp-vultr

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/rsp2k-mcp-vultr/start-version-upgrade.md

WHAT IT DOES

What start_version_upgrade does on Vultr MCP

AI agents invoke start_version_upgrade to trigger actions in Vultr MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why start_version_upgrade is rated High

This tool executes an action that initiates a significant infrastructure change—upgrading a database engine version. While not destructive (the upgrade is intended to be reversible in principle), it is Execute because it triggers external operations with real-world consequences.

From the tool's definition Tool name is 'start_version_upgrade' and description states it 'Start a database engine version upgrade.' This initiates an operational action that triggers external effects (database upgrade process) whose outcome depends on runtime behavior.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs start_version_upgrade safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Vultr MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For start_version_upgrade, this is the rule to start with:

start_version_upgrade Rate-limited

start_version_upgrade stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "start_version_upgrade": {
      "limits": [
        {
          "counter": "start_version_upgrade_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Vultr MCP, apply this rule, and every start_version_upgrade call is checked against it from then on.

FAQ

Questions about start_version_upgrade

What does the start_version_upgrade tool do? +

Start a database engine version upgrade. It is categorised as a Execute tool in the Vultr MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on start_version_upgrade? +

Register the Vultr MCP server in PolicyLayer and add a rule for start_version_upgrade: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Vultr MCP. Nothing to install.

What risk level is start_version_upgrade? +

start_version_upgrade is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit start_version_upgrade? +

Yes. Add a rate_limit block to the start_version_upgrade rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block start_version_upgrade completely? +

Set action: deny in the PolicyLayer policy for start_version_upgrade. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides start_version_upgrade? +

start_version_upgrade is provided by the Vultr MCP server (rsp2k/mcp-vultr). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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