Neon MCP Server read-only blocked writes via read_only role

Testing shows that connecting coding agents to Neon databases using a read-only role or direct connection string leaves open risks such as durable writes through functions, temp tables, session locks, and lock queueing during database migrations. Combining the Neon MCP Server with readonly=true and a pinned role blocks durable writes, while routing agent reads to a read replica and setting lock timeouts prevents migration stalls. Open article →