# Design System Improvements - Todo List

**Status**: Planning
**Priority**: Low-Medium
**Estimated Effort**: Small (ongoing)

## Overview

Incremental improvements to the existing Design System infrastructure, separate from the CSS Generation System.

## Parser & Analysis Enhancements

### CSS Parser Improvements
- [ ] Add support for CSS `@layer` parsing
- [ ] Parse `@container` queries
- [ ] Extract `@media` query information
- [ ] Parse CSS animations (`@keyframes`)
- [ ] Support CSS nesting syntax
- [ ] Add CSS validation (warn about invalid properties)

### Design System Analyzer Enhancements
- [ ] Add accessibility analysis
  - Check for sufficient color contrast
  - Validate ARIA-compatible class names
  - Report accessibility issues

- [ ] Add performance analysis
  - CSS file size reporting
  - Selector complexity scoring
  - Unused CSS detection

- [ ] Add consistency checks
  - Token naming conventions
  - Class naming patterns (BEM, utility, etc.)
  - Spacing scale consistency

### New Analyzers
- [ ] Create `CssComplexityAnalyzer`
  - Measure selector specificity
  - Count nested selectors
  - Identify overly complex rules

- [ ] Create `DesignTokenUsageAnalyzer`
  - Which tokens are actually used?
  - Which tokens are unused?
  - Token usage frequency

## Value Objects & Core Types

### CSS Value Objects
- [ ] Extend `CssColor` Value Object
  - Add color manipulation methods (lighten, darken, saturate)
  - Color contrast calculation
  - WCAG compliance checking

- [ ] Create `CssAnimation` Value Object
  - Represent `@keyframes` animations
  - Timing functions, durations
  - Animation composition

- [ ] Create `CssMediaQuery` Value Object
  - Parse and represent media queries
  - Breakpoint Value Objects
  - Query composition helpers

- [ ] Create `CssContainerQuery` Value Object
  - Container query representation
  - Size-based conditions

### Design Token Enhancements
- [ ] Add token aliasing support
  - `--color-primary: var(--color-blue-500);`
  - Track token dependencies

- [ ] Add token transformations
  - Light/dark mode variants
  - Responsive token values
  - Platform-specific tokens (web, iOS, Android)

- [ ] Token validation
  - Type checking (color must be valid color)
  - Range validation (spacing must be positive)
  - Format validation

## Component System Integration

### Component Discovery
- [ ] Enhance component attribute discovery
  - Find all components with `#[ComponentName]`
  - Build component dependency graph
  - Detect circular dependencies

- [ ] Component usage tracking
  - Where is each component used in templates?
  - Component usage statistics
  - Unused component detection

### Component Documentation
- [ ] Auto-generate component documentation
  - Extract props from component constructors
  - Generate prop tables
  - Extract usage examples from tests

- [ ] Component playground/preview
  - Live preview of all components
  - Interactive prop editing
  - Code generation from preview

## Template System Integration

### Template Analysis
- [ ] Create `TemplateAnalyzer`
  - Find all template files
  - Extract used components
  - Extract used CSS classes
  - Find inline styles

- [ ] Template-CSS correlation
  - Which CSS classes are used in templates?
  - Which classes are defined but not used?
  - Dead CSS detection

### Template Validation
- [ ] Validate component usage in templates
  - Check for valid component names
  - Check for required props
  - Validate prop types

## MCP Integration Enhancements

### New MCP Tools
- [ ] `analyze_design_tokens` MCP tool
  - List all design tokens
  - Show token usage statistics
  - Find token conflicts

- [ ] `validate_css_usage` MCP tool
  - CSS coverage analysis
  - Unused CSS detection
  - Suggest optimizations

- [ ] `generate_component_docs` MCP tool
  - Auto-generate component documentation
  - Export as Markdown/HTML

## Console Commands

### New Commands
- [ ] `design:analyze` - Full design system analysis
  - Run all analyzers
  - Generate comprehensive report
  - Output as JSON/Markdown

- [ ] `design:validate` - Validate design system
  - Check token naming conventions
  - Validate component definitions
  - Check CSS consistency

- [ ] `design:report` - Generate design system report
  - Token inventory
  - Component inventory
  - CSS statistics
  - Usage analytics

- [ ] `design:optimize` - Optimize CSS
  - Remove unused CSS
  - Combine similar rules
  - Suggest token consolidation

## Documentation

### Design System Documentation
- [ ] Create design system handbook
  - Token usage guidelines
  - Component creation guide
  - CSS conventions
  - Best practices

- [ ] Create visual component library
  - Showcase all components
  - Interactive examples
  - Copy-paste code snippets

### Developer Guides
- [ ] CSS architecture guide
  - ITCSS methodology explanation
  - Layer organization
  - Naming conventions

- [ ] Token system guide
  - When to create new tokens
  - Token naming conventions
  - Token categories explanation

## Testing

### Test Coverage
- [ ] Add tests for all parsers
  - CssParser edge cases
  - CustomPropertyParser
  - ClassNameParser

- [ ] Add tests for analyzers
  - DesignSystemAnalyzer
  - ColorAnalyzer
  - TokenAnalyzer

- [ ] Integration tests
  - Full design system analysis
  - Token extraction from real CSS
  - Component discovery

## Performance Optimization

### Parser Performance
- [ ] Benchmark CSS parsing performance
- [ ] Optimize regex patterns
- [ ] Add caching for parsed results
- [ ] Parallel file parsing

### Analysis Performance
- [ ] Cache analysis results
- [ ] Incremental analysis (only changed files)
- [ ] Lazy loading for large design systems

## Future Considerations

### Advanced Features
- [ ] Design system versioning
  - Track token changes over time
  - Breaking change detection
  - Migration guides

- [ ] Design system diffing
  - Compare two versions
  - Show token additions/removals
  - Highlight breaking changes

- [ ] Multi-theme support
  - Light/dark mode tokens
  - Brand theme variants
  - A/B testing themes

- [ ] Design token export
  - Export to JSON (Style Dictionary format)
  - Export to CSS
  - Export to SCSS/Less
  - Export to JS/TS

### Tooling Integration
- [ ] Figma plugin integration
  - Sync tokens from Figma
  - Export components to Figma
  - Keep design and code in sync

- [ ] Storybook integration
  - Auto-generate stories from components
  - Token documentation in Storybook

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**Last Updated**: 2025-10-19
**Status**: Ongoing improvements
