Get an overview of the connected database: PostgreSQL version, database name, total size on disk, number of tables, and current connection info (user, host, port).
AI agents call get_db_info to retrieve information from Mcp Postgres Query without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs schema and system introspection only. It returns informational data about the database state without creating, modifying, deleting, or executing arbitrary operations. The blast radius of misuse is minimal — an agent learning database structure does not enable destructive or financial harm in isolation. Classified as Read with low severity.
From the tool's definition Tool retrieves database metadata: 'PostgreSQL version, database name, total size on disk, number of tables, and current connection info' — all read-only queries with no modification capability.
Attacks that exploit this kind of access
Get an overview of the connected database: PostgreSQL version, database name, total size on disk, number of tables, and current connection info (user, host, port). It is categorised as a Read tool in the Mcp Postgres Query MCP Server, which means it retrieves data without modifying state.
Register the Mcp Postgres Query MCP server in PolicyLayer and add a rule for get_db_info: 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 Mcp Postgres Query. Nothing to install.
get_db_info 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 get_db_info 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 get_db_info. 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.
get_db_info is provided by the Mcp Postgres Query MCP server (lordbasilaiassistant-sudo/mcp-postgres-query). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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