# TSK-0040: Expand LoggerMixin Usage Across Codebase

**Type**: Task
**Status**: Open
**Priority**: High
**Assignee**: Engineer Agent
**Created**: 2025-07-24
**Epic**: Utility Module Integration Phase 3

## Description

Refactor all classes currently using direct `logging.getLogger()` calls to inherit from LoggerMixin for consistent logging across the codebase. This will reduce code duplication and standardize logging patterns.

## Acceptance Criteria

- [ ] Refactor 10 files in `agent_modification_tracker` module to use LoggerMixin
- [ ] Update all service classes not already using LoggerMixin
- [ ] Ensure backward compatibility with existing logging configurations
- [ ] Maintain existing log levels and formatting
- [ ] Add LoggerMixin to any new base classes identified during refactoring

## Technical Details

### Priority Files (agent_modification_tracker module):
1. `persistence.py`
2. `specialized_agent_handler.py`
3. `metadata_analyzer.py`
4. `cache_integration.py`
5. `tree_sitter_analyzer.py` (both versions)
6. `backup_manager.py`
7. `validation.py`
8. `performance_optimizer.py`
9. `dependency_tracker.py`

### Implementation Pattern:
```python
# Before:
class SomeClass:
    def __init__(self):
        self.logger = logging.getLogger(__name__)

# After:
from claude_mpm.core.mixins import LoggerMixin

class SomeClass(LoggerMixin):
    def __init__(self):
        super().__init__()
        # logger is now available as self.logger
```

## Dependencies
- Requires LoggerMixin from `claude_mpm.core.mixins`
- No external dependencies

## Testing Requirements
- Verify logging output remains consistent
- Test log level configuration
- Ensure no regression in existing functionality
- Add unit tests for LoggerMixin inheritance

## Success Metrics
- 100% of identified files refactored
- Zero logging-related regressions
- Improved code maintainability score