Using CLAUDE.MD files: Customizing Claude Code for your codebase | Claude
If you use AI coding agents, you face the same challenge: how do you give them enough context to understand your architecture, conventions, and workflows without repeating yourself? The problem compounds as your codebase grows. Complex module relationships, domain-specific patterns, and team conventions don't surface easily. You end up explaining the same architectural decisions, testing requirements, and code style preferences at the start of every conversation. CLAUDE.md files solve this by giving Claude persistent context about your project. Think of it as a configuration file that Claude automatically incorporates into every conversation, ensuring it always knows your project structure, coding standards, and preferred workflows. In this article, we walk through how to structure your CLAUDE.md, share best practices, and tips for using them to get the most out of Claude Code. CLAUDE.md is a special configuration file that lives in your repository and provides Claude with project-spec
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