Berth

Gives Claude direct SQL access to PostgreSQL, MySQL, and SQLite with a three tier safety system. Starts in read-only mode where only SELECT and EXPLAIN work. Write mode unlocks INSERT, UPDATE, and CREATE but blocks DROP and TRUNCATE. Admin mode allows destructive operations but requires echoing back a confirmation token that expires in 60 seconds. Ships with 13 tools covering schema inspection, query execution, relationship mapping, and backups. The migration generator is particularly solid: point it at a live database and target DDL, or at two live connections, and it diffs schemas to produce dialect-aware ALTER statements. Reach for this when you need Claude to explore schemas, prototype queries, or generate migrations without accidentally nuking production tables.