Mysql

This is a read-only MySQL query tool that connects to multiple databases through a JSON config file. You can run SELECT queries, explore schemas, and list tables without worrying about accidentally modifying data. It enforces read-only mode at the MySQL session level and blocks anything that isn't a SELECT or SHOW command. The multi-database setup with descriptions is clever since Claude can auto-select the right connection based on what you're asking about. Watch out for the credentials sitting in a local JSON file, though the docs do tell you to chmod 600 it. Good for ad-hoc queries and exploration when you want guardrails against destructive operations.