PostgreSQL_get_server_version
Get PostgreSQL server version and configuration information.
This record as markdown: /tools/mukul975-postgres-mcp-server/postgresql-get-server-version.md
What PostgreSQL_get_server_version does on Postgres
AI agents call PostgreSQL_get_server_version to retrieve information from Postgres without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why PostgreSQL_get_server_version is rated Low
This tool queries and returns server metadata (version and configuration details). It has no side effects, does not execute commands, does not modify data, and does not trigger external operations. It is a straightforward read operation that poses minimal security risk even if invoked by an AI agent with arbitrary arguments.
From the tool's definition Tool name contains 'get' and description states 'Get PostgreSQL server version and configuration information' — purely retrieves data without modification or execution of operations.
Attacks that exploit this kind of access
The rule that runs PostgreSQL_get_server_version safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Postgres, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For PostgreSQL_get_server_version, this is the rule to start with:
PostgreSQL_get_server_version is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Postgres, apply this rule, and every PostgreSQL_get_server_version call is checked against it from then on.
Questions about PostgreSQL_get_server_version
Get PostgreSQL server version and configuration information. It is categorised as a Read tool in the Postgres MCP Server, which means it retrieves data without modifying state.
Register the Postgres MCP server in PolicyLayer and add a rule for PostgreSQL_get_server_version: 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 Postgres. Nothing to install.
PostgreSQL_get_server_version is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the PostgreSQL_get_server_version 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.
Set action: deny in the PolicyLayer policy for PostgreSQL_get_server_version. 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.
PostgreSQL_get_server_version is provided by the Postgres MCP server (mukul975/postgres-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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