MCP tool

database_health

cache hit ratio, connections (this database and the cluster), the longest

The database_health tool is provided by PostgreSQL (hardened, read-only). Install that server in your AI client and the assistant can call it directly.

Servers exposing database_health

Tool lists are read from the live servers (or, for packaged servers, from their documentation) each morning, so this reflects what they exposed at the last refresh. Search all tools.