Taming the Monolith: A Claude Code Setup Guide for Large Codebases

A practical guide for teams working with large and complex enterprise codebase If you’re working with a large on-prem codebase, a monolith with dozens of services, multiple backend components and client applications all living in one massive repo, you already know the pain. Coding agents have a finite context window and they perform best when that window is used deliberately. Large monolith codebases if not setup correctly for AI-assisted development, can quickly fill up available context and agents start hallucinating not giving expected responses. 1.