Switching from Cursor to Claude Code? Your Rules Stop Working (Migration Guide)
Users migrating from Cursor to Claude Code may encounter issues as Claude Code does not support Cursor's rule system. Cursor utilizes `.cursorrules` and `.cursor/rules/*.mdc` files, which include glob matching and conditional application. In contrast, Claude Code relies on a single `CLAUDE.md` file where rules are plain Markdown sections. Migrating requires translating Cursor's glob-based and conditional rules into Claude Code's simpler, context-based instruction format, often necessitating shorter, more absolute phrasing to ensure the AI adheres to them. AI
IMPACT Developers switching between AI coding assistants need to reconfigure their custom rules, impacting workflow efficiency.