Devin, an AI software engineer from Cognition Lab, has expanded its capabilities by integrating with Neon's MCP (Model Context Protocol) server marketplace, which allows direct interaction with Neon databases and other development tools. A practical example demonstrates Devin's ability to address a performance bottleneck in an e-commerce website's API by using its tools to analyze, optimize, and improve query performance. Although the initial optimization attempt with indexing failed, Devin successfully implemented a materialized view that enhanced performance by 97%, while also addressing data staleness concerns by recommending regular view refreshes using the pg_cron extension. This integration enables Devin to take on complex tasks and safely test optimizations on new branches, safeguarding data integrity. The expansion of MCP server integrations broadens Devin's capabilities, allowing interaction with tools like Sentry, DataDog, Linear, and Slack, thereby increasing the range of challenges it can tackle.