- Add OutputFormat ADT for explicit format handling vs file extension checking
- Replace crash-prone runIOorExplode with proper Either error handling
- Extract processMermaidBlock into focused functions for better maintainability
- Convert String constants to Text for type consistency
- Add DiagramConfig type for better configuration management
- Enhance haskell-refactoring-expert agent to handle module organization
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
