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name: mcp-developer description: Guides development, updates, and refactoring across the entire MCP server codebase. Use when adding features, updating categories, refactoring code, checking test coverage, or making any code changes. Enforces consistent patterns, 100% test coverage, and principled design decisions. Essential for maintaining code quality and preventing regressions during rapid development.

MCP Developer

Guides technical implementation with consistent patterns and 100% test coverage.

Core Requirements

• 100% test coverage for all new features
• Design decision analysis - Present 2-3 options with trade-offs before implementing
• Consistency over innovation - Follow existing patterns unless compelling reason to diverge

Adding New Category Workflow

1. Create src/mcp_sdl/api/sdl3/category_{name}/
2. Add to IMPLEMENTED_CATEGORIES in categories.py
3. Create __init__.py using category template (see references/templates.md)
4. Add item files using function/enum templates (see references/templates.md)
5. Add to EXPECTED_CATEGORIES in tests
6. Verify: uv run pytest tests/test_api_category_structure.py -v

File Structure

Copycategory_{name}/
├── __init__.py           # Category aggregator
├── SDL_FunctionName.py   # One file per SDL item

Naming Rules

• Files: Match SDL3 exactly (SDL_FunctionName.py)
• Categories: lowercase with underscores (category_audio)
• Source: SDL3 wiki primary, headers as fallback

References

• Code Templates - Category and item file templates
• Implementation Patterns - Detailed patterns and examples