serena-refactor

# Serena Safe Refactoring ## Cross-Codebase Rename ``` rename_symbol(old_name="calcTax", new_name="calculate_tax") ``` - Updates ALL references automatically - Works across files - Handles imports/exports ## Replace Function Body ``` replace_symbol_body(symbol_name="process_payment", new_body="...") ``` - Preserves function signature - Safer than text replacement - Maintains formatting ## Pre-Refactoring Checklist 1. **Check impact**: ``` find_referencing_symbols("function_to_change") ``` Review all affected locations before changing. 2. **Verify tests exist**: ``` find_symbol("test_function_to_change") ``` 3. **Run tests after**: ```bash pytest tests/test_module.py -v ``` ## Common Patterns ### Rename Function ``` find_referencing_symbols("old_name") # Check impact rename_symbol(old_name="old_name", new_name="new_name") # Run tests ``` ### Replace Implementation ``` find_symbol("function_name", include_body=true) # See current replace_symbol_body("function_name", new_body="...") # Run tests ``` ## Safety Notes - Always check references before renaming - Run tests after each refactoring step - Document patterns in Serena memory for future reference