The original title is: "Read-only Postgres access can still take down your application"

Short summary

Read-only Postgres access via MCP servers can still destabilize production because exploratory joins and aggregates consume the same CPU, memory, and connection resources as application traffic. The author recommends treating AI database traffic as a separate workload class with dedicated roles, bounded connection pools, enforced resource limits, and replica routing with freshness contracts. The connection pool should function as an admission controller, not just a reuse optimization.

• •Read-only does not mean workload-safe; AI queries compete for same DB resources as OLTP
• •Isolate AI DB traffic with dedicated roles, bounded pools, and resource limits
• •Use replicas with explicit freshness contracts and propagate deadlines to Postgres

Generated with AI, which can make mistakes.