pgBot: a 5.9 MB read-only Postgres tool for humans and agents

pgBot is a lightweight, open-source CLI (5.9 MB) that connects to any PostgreSQL database and provides real-time health monitoring, query performance analysis, and AI-powered explanations in plain English. It's read-only by design, works with hosted databases like Supabase, Neon, and RDS, and can run as an agent next to private databases. It also speaks the Model Context Protocol, letting AI agents use it as a deterministic tool for inspection and diagnosis.