test-rules.md

Development AI Rules

Code Style

• Use TypeScript for all JavaScript projects
• Follow the project's established code style
• Use Biome for formatting and linting
• Prefer functional programming patterns when appropriate
• Use meaningful variable and function names

Testing

• Write tests using Vitest
• Follow Test-Driven Development principles
• Aim for high test coverage on business logic
• Include both unit and integration tests
• Mock external dependencies appropriately

Package Management

• Use pnpm as the primary package manager
• Include exact versions for dependencies
• Group dependencies logically in package.json
• Minimize dependencies when possible

Documentation

• Document all public APIs
• Include JSDoc comments for functions and classes
• Maintain a comprehensive README.md
• Document any non-obvious design decisions
• Keep documentation up-to-date with code changes

UI Development

• Use Ladle for component development and testing
• Follow accessibility best practices
• Ensure responsive design for all UI components
• Maintain a consistent design system
• Test across multiple browsers and devices