The true power of Trace lies in its extensibility. While the built-in browser and structural tools are powerful, they are just the beginning. By building custom MCP servers, you can expose your proprietary internal tools, staging databases, or log aggregators directly to the AI agent context. In this tutorial, we will write a simple Node.js MCP server that allows your AI coding assistant to query a local SQLite database, enabling it to write data migration scripts with perfect context.