promote_read_replica

Promote a read replica to a standalone database.

SERVERVultr MCP SOURCErsp2k/mcp-vultr

Medium RISK CLASS

Category Write

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/promote-read-replica.md

WHAT IT DOES

What promote_read_replica does on Vultr MCP

AI agents use promote_read_replica 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.

RISK

Why promote_read_replica is rated Medium

Promoting a read replica to a standalone database changes the database topology and configuration. This is a Write/reconfiguration action that modifies infrastructure state. While potentially disruptive (it changes replication relationships and could affect application connectivity), it is not purely destructive as the data is preserved and the operation creates a new standalone instance.

From the tool's definition Promote a read replica to a standalone database

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs promote_read_replica 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 promote_read_replica, this is the rule to start with:

promote_read_replica Rate-limited

promote_read_replica stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "promote_read_replica": {
      "limits": [
        {
          "counter": "promote_read_replica_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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 promote_read_replica call is checked against it from then on.

FAQ

Questions about promote_read_replica

What does the promote_read_replica tool do? +

Promote a read replica to a standalone database. It is categorised as a Write tool in the Vultr MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on promote_read_replica? +

Register the Vultr MCP server in PolicyLayer and add a rule for promote_read_replica: 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 promote_read_replica? +

promote_read_replica is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit promote_read_replica? +

Yes. Add a rate_limit block to the promote_read_replica 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 promote_read_replica completely? +

Set action: deny in the PolicyLayer policy for promote_read_replica. 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 promote_read_replica? +

promote_read_replica 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.

KEEP EXPLORING

More on Vultr, and thousands of servers like it.

This server

All 284 Vultr tools →

Across the catalogue

sms_mark_read on Twilio SMS MCP Server →mark-as-read on Meme MCP Server → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →