patch_postgresql_instance

Apply the latest updates to a PostgreSQL database instance

SERVERLinode MCP Server SOURCEtakashito/linode-mcp-server

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/takashito-linode-mcp-server/patch-postgresql-instance.md

WHAT IT DOES

What patch_postgresql_instance does on Linode MCP Server

AI agents invoke patch_postgresql_instance to trigger actions in Linode MCP Server. 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 patch_postgresql_instance is rated High

Applying updates/patches to a running database instance triggers an external operation (patching/updating software) that can cause restarts, downtime, or configuration changes. This is an Execute-category action rather than a simple Write, as it runs an operational process on live infrastructure. The blast radius is high because applying patches to a production database can cause downtime or breaking changes.

From the tool's definition Apply the latest updates to a PostgreSQL database instance

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs patch_postgresql_instance safely

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

patch_postgresql_instance Rate-limited

patch_postgresql_instance 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": {
    "patch_postgresql_instance": {
      "limits": [
        {
          "counter": "patch_postgresql_instance_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 Linode MCP Server, apply this rule, and every patch_postgresql_instance call is checked against it from then on.

FAQ

Questions about patch_postgresql_instance

What does the patch_postgresql_instance tool do? +

Apply the latest updates to a PostgreSQL database instance. It is categorised as a Execute tool in the Linode MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on patch_postgresql_instance? +

Register the Linode MCP Server MCP server in PolicyLayer and add a rule for patch_postgresql_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 patch_postgresql_instance? +

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

Can I rate-limit patch_postgresql_instance? +

Yes. Add a rate_limit block to the patch_postgresql_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 patch_postgresql_instance completely? +

Set action: deny in the PolicyLayer policy for patch_postgresql_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 patch_postgresql_instance? +

patch_postgresql_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.

KEEP EXPLORING

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