Summary

Expand the performance profiler to detect additional common Python anti-patterns beyond the current 6 categories.

Proposed New Patterns

• Exception handling inside loops - Try/except catching expected conditions (slow)
• Repeated dict/set lookups in loops - O(1) operations that could be cached outside the loop
• List comprehension vs generator - Places where generators would save memory
• Unbounded recursion - Functions with no depth limit that could stack overflow
• Missing __slots__ - Classes with many instances not using __slots__ for memory
• Type conversions in loops - int(), str() conversions done repeatedly
• Global variable mutation - Functions that modify global state

Implementation

1. Define patterns in src/workshop_mcp/performance_profiler/patterns.py
2. Add detection logic in performance_checker.py
3. Write tests in tests/test_performance_checker.py

Acceptance Criteria

• At least 3 new patterns implemented
• Each pattern has comprehensive test coverage
• Documentation updated with new pattern descriptions