1. Create or open the CLAUDE.md file.
2. Add a 'Code Style Rules' section.
3. Add a 'Code Formatting' subsection.
4. Specify 'No semicolons (enforced)'.
5. Specify 'Single quotes (enforced)'.
6. Specify 'No unnecessary curly braces (enforced)'.
7. Specify '2-space indentation'.
8. Specify 'Import order: external → internal → types'.