Postgres connection pooling after sandbox exit so concurrent AI traffic cannot melt the DB

After you leave a Lovable or Bolt sandbox and own the backend, every agent turn, tool call, and concurrent request can open a fresh Postgres session. Sandbox hosts often hide that cost behind a shared pool you never sized. On infrastructure you control, unbounded clients hit max_connections and the database stops accepting work. Connection pooling is the practice that keeps concurrent AI and human traffic from melting Postgres — not another generic “how Postgres works” tutorial.

This post covers pool sizing, checkout timeouts, idle and max caps, PgBouncer-or-equivalent patterns, and a saturation canary you can prove.

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This is an excerpt. Read the full post at otf-kit.dev/blog/postgres-connection-pooling-production — full-stack kits your AI coding agent can actually ship to production. Browse the kits →