Codebase is a Model Context Protocol (MCP) server designed to give AI assistants, such as Claude, a comprehensive understanding of your project. It works universally with any programming language or framework, automatically staying synchronized with file system changes through real-time watching. The server intelligently detects frameworks, filters out non-essential content, categorizes files, and supports multi-project environments, ensuring AI assistants always have the most accurate and up-to-date context about your codebase structure, code patterns, and architecture for enhanced assistance.