get_mysql_instance

THE RISK

Low Risk

Why get_mysql_instance needs a policy

This tool performs a read-only query to retrieve information about a MySQL database instance. It has no side effects, does not modify data, does not execute commands, and does not affect infrastructure state. The blast radius of misuse is minimal—an AI agent could only retrieve details it may not be authorized to see, but cannot affect the instance itself.

From the tool's definition Tool name 'get_mysql_instance' and description 'Get details for a specific MySQL database instance' indicate a retrieval operation that queries database instance metadata without modifying, deleting, or executing operations.

Documented attack patterns abuse exactly the kind of access get_mysql_instance gives an agent:

POLICY

How to control get_mysql_instance

PolicyLayer is an MCP gateway — it sits between your AI agents and Linode MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_mysql_instance:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_mysql_instance": {}
  }
}

get_mysql_instance is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Linode MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Linode MCP Server tools

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All 416 Linode MCP Server tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_mysql_instance

What does the get_mysql_instance tool do? +

Get details for a specific MySQL database instance. It is categorised as a Read tool in the Linode MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_mysql_instance? +

Register the Linode MCP Server MCP server in PolicyLayer and add a rule for get_mysql_instance: 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 Linode MCP Server. Nothing to install.

What risk level is get_mysql_instance? +

get_mysql_instance is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_mysql_instance? +

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

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

get_mysql_instance is provided by the Linode MCP Server MCP server (takashito/linode-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Linode MCP Server tool call.

Start from Linode MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →