Claude.md is RAM, not disk (albertoarena.it)

In a recent article, Alberto Arena highlights a crucial insight for optimizing the Claude Code project management approach: treat the CLAUDE.md as working memory (RAM) rather than a sprawling document (disk). As projects often see this file swell to hundreds of lines, the assistant’s performance declines due to excessive irrelevant context cluttering the processing space. Arena advocates for a clear separation of information: essentials that are needed every session should reside in CLAUDE.md, while in-depth documentation can be housed in a dedicated directory (docs/) and loaded on demand when necessary. This strategy is significant for the AI/ML community as it enhances the efficiency of AI tools like Claude by maximizing relevant context and minimizing overhead. By implementing structured, concise documentation—such as having a brief CLAUDE.md for immediate access and longer files for complex projects like DESIGN.md, PLAN.md, and DECISIONS.md—developers can ensure that Claude retains the necessary context without incurring token costs for unnecessary details. Additionally, the use of nested CLAUDE.md files allows for localized rules, enabling a more organized and responsive setup. Arena provides a template repo to help developers adopt this framework, emphasizing that starting small and keeping CLAUDE.md focused leads to improved performance and clarity in AI-assisted development.