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get_postgresql_instance

Get details for a specific PostgreSQL database instance

SERVERLinode MCP Server SOURCEtakashito/linode-mcp-server
Low RISK CLASS
Category Read
Parameters 00 required
Recommended Allowedsee the rule below
Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/takashito-linode-mcp-server/get-postgresql-instance.md

What get_postgresql_instance does on Linode MCP Server

AI agents call get_postgresql_instance to retrieve information from Linode MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Why get_postgresql_instance is rated Low

This tool retrieves information about an existing PostgreSQL database instance. It performs a query operation to fetch metadata or configuration details, which is a read-only action. There is no capability to modify, delete, execute code, or trigger financial actions. The blast radius of misuse is minimal - an attacker could learn about database configurations but cannot alter or damage resources.

From the tool's definition Tool name is 'get_postgresql_instance' and description states 'Get details for a specific PostgreSQL database instance' - the verb 'Get' and action 'details' indicate data retrieval with no modification or side effects.

Questions about get_postgresql_instance

What does the get_postgresql_instance tool do? +

Get details for a specific PostgreSQL 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_postgresql_instance? +

Register the Linode MCP Server MCP server in PolicyLayer and add a rule for get_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 get_postgresql_instance? +

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

Can I rate-limit get_postgresql_instance? +

Yes. Add a rate_limit block to the get_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 get_postgresql_instance completely? +

Set action: deny in the PolicyLayer policy for get_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 get_postgresql_instance? +

get_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.

More on Linode MCP Server, and thousands of servers like it.

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