# Git Terminal Tasks Implementation Plan
## Overview
This document outlines the implementation strategy for adding advanced git terminal task automation to the Commit Helper MCP, based on common developer workflows and specific use cases like removing commits between tags.
## Project Goals
1. **Extend Commit Helper MCP** with advanced git operations
2. **Maintain Safety-First Approach** with preview and force_execute patterns
3. **Provide Comprehensive Automation** for complex git workflows
4. **Ensure Backward Compatibility** with existing tools
## Implementation Phases
### Phase 1: Foundation (Week 1)
#### 1.1 Core Infrastructure
- [ ] Create new module: `src/commit_helper_mcp/git_advanced/`
- [ ] Implement base classes for history manipulation
- [ ] Add safety validation framework
- [ ] Create backup and recovery utilities
#### 1.2 History Manipulation Core
- [ ] Implement `GitHistoryService` class
- [ ] Add rebase operation wrappers
- [ ] Create conflict resolution helpers
- [ ] Implement tag migration logic
#### 1.3 Initial Testing
- [ ] Unit tests for core operations
- [ ] Integration tests with test repositories
- [ ] Safety mechanism validation
### Phase 2: Primary Tools (Week 2)
#### 2.1 History Rewriting Tools
- [ ] `rewrite_history_between_tags`
- [ ] `interactive_rebase_helper`
- [ ] `history_cleanup_tool`
- [ ] `commit_split_helper`
#### 2.2 Tag Management Tools
- [ ] `tag_analysis_tool`
- [ ] `tag_migration_helper`
- [ ] `tag_validation_tool`
#### 2.3 Integration
- [ ] Add tools to MCP server
- [ ] Implement consistent error handling
- [ ] Create unified response formats
### Phase 3: Advanced Features (Week 3)
#### 3.1 Diff and Analysis Tools
- [ ] `compare_branches_tool`
- [ ] `conflict_resolution_helper`
- [ ] `patch_generation_tool`
#### 3.2 Maintenance Tools
- [ ] `repository_cleanup_tool`
- [ ] `hook_management_tool`
- [ ] `config_management_tool`
#### 3.3 Workflow Automation
- [ ] `release_workflow_tool`
- [ ] `feature_branch_helper`
- [ ] `hotfix_automation_tool`
### Phase 4: Polish and Release (Week 4)
#### 4.1 Documentation
- [ ] Complete API documentation
- [ ] Create user guides with examples
- [ ] Add troubleshooting section
- [ ] Update main README
#### 4.2 Testing and Validation
- [ ] Comprehensive test coverage
- [ ] Performance benchmarking
- [ ] Security audit
- [ ] User acceptance testing
#### 4.3 Release Preparation
- [ ] Version bump to v0.8.0
- [ ] Update CHANGELOG
- [ ] Create migration guide
- [ ] Prepare announcement
## Technical Architecture
### Module Structure
```
src/commit_helper_mcp/
├── git_advanced/
│ ├── __init__.py
│ ├── history_service.py # Core history manipulation
│ ├── tag_service.py # Tag management operations
│ ├── diff_service.py # Advanced diff operations
│ ├── maintenance_service.py # Repository maintenance
│ └── workflow_service.py # Workflow automation
├── server/
│ ├── history_tools.py # MCP tools for history
│ ├── tag_tools.py # MCP tools for tags
│ ├── diff_tools.py # MCP tools for diffs
│ └── maintenance_tools.py # MCP tools for maintenance
```
### Service Layer Design
```python
class GitHistoryService:
"""Core service for git history manipulation."""
def __init__(self, repo_path: Optional[str] = None):
self.repo_manager = RepositoryManager()
self.git_service = GitPythonService(repo_path)
self.backup_service = BackupService()
self.validator = HistoryValidator()
def rewrite_between_tags(
self,
start_tag: str,
end_tag: str,
commits_to_remove: List[str],
**options
) -> Dict[str, Any]:
"""Safely rewrite history between two tags."""
# Implementation
```
### Safety Framework
```python
class SafetyValidator:
"""Validates operations before execution."""
def validate_history_rewrite(self, operation: Dict) -> ValidationResult:
checks = [
self.check_repository_state(),
self.check_uncommitted_changes(),
self.check_remote_sync(),
self.check_protected_branches(),
self.check_tag_dependencies()
]
return ValidationResult(checks)
class BackupService:
"""Manages backups before destructive operations."""
def create_backup(self, prefix: str = "backup") -> str:
timestamp = datetime.now().strftime("%Y%m%d-%H%M%S")
backup_name = f"{prefix}-{timestamp}"
# Create backup branch
return backup_name
```
## Integration Strategy
### 1. Extend Existing Services
```python
# In commit_orchestrator.py
class CommitOrchestrator:
def __init__(self, ...):
# Existing initialization
self.history_service = GitHistoryService()
self.tag_service = TagService()
```
### 2. Add New MCP Tools
```python
# In server/history_tools.py
@mcp.tool()
def rewrite_history_between_tags(
start_tag: str,
end_tag: str,
repo_path: Optional[str] = None,
commits_to_remove: Optional[List[str]] = None,
force_execute: bool = False,
**options
) -> Dict[str, Any]:
"""Safely remove commits between two tags."""
# Implementation
```
### 3. Maintain Consistency
- Use same error handling patterns
- Follow existing response formats
- Implement preview/force_execute pattern
- Support repository targeting
## Testing Strategy
### Unit Tests
```python
# tests/unit/git_advanced/test_history_service.py
class TestGitHistoryService:
def test_rewrite_between_tags_preview(self):
# Test preview mode
def test_rewrite_between_tags_execute(self):
# Test execution with force_execute
def test_backup_creation(self):
# Test automatic backup
```
### Integration Tests
```python
# tests/integration/git_advanced/test_history_operations.py
class TestHistoryOperations:
def test_complete_rewrite_workflow(self):
# End-to-end test
def test_conflict_handling(self):
# Test conflict resolution
def test_rollback_recovery(self):
# Test recovery from backup
```
### Safety Tests
```python
# tests/integration/git_advanced/test_safety_mechanisms.py
class TestSafetyMechanisms:
def test_prevents_uncommitted_changes(self):
# Verify safety check
def test_requires_force_execute(self):
# Verify force flag requirement
def test_backup_always_created(self):
# Verify backup creation
```
## Performance Considerations
### Optimization Strategies
1. **Lazy Loading**: Load git objects only when needed
2. **Caching**: Cache tag and branch information
3. **Batch Operations**: Process multiple operations together
4. **Progress Reporting**: Provide feedback for long operations
### Benchmarks
- Rewrite 100 commits: < 5 seconds
- Analyze 1000 commits: < 2 seconds
- Create backup: < 1 second
- Tag migration: < 0.5 seconds per tag
## Security Considerations
### Input Validation
```python
def validate_tag_name(tag: str) -> str:
"""Validate and sanitize tag names."""
if not tag or not tag.strip():
raise ValueError("Tag name cannot be empty")
# Prevent command injection
if any(char in tag for char in [';', '|', '&', '$', '`']):
raise ValueError("Invalid characters in tag name")
return tag.strip()
```
### Repository Access
- Validate repository paths
- Prevent directory traversal
- Check repository ownership
- Verify git configuration
## Migration Path
### For Existing Users
1. **Seamless Upgrade**: New tools available after update
2. **No Breaking Changes**: Existing tools continue to work
3. **Opt-in Features**: Advanced tools are optional
4. **Documentation**: Clear guides for new features
### Version Strategy
- v0.7.x: Current stable release
- v0.8.0: Add history manipulation tools
- v0.8.x: Bug fixes and minor enhancements
- v0.9.0: Add workflow automation tools
- v1.0.0: Feature complete, production ready
## Success Metrics
### Technical Metrics
- [ ] All tests passing (100% critical path coverage)
- [ ] Performance benchmarks met
- [ ] No security vulnerabilities
- [ ] Documentation complete
### User Experience Metrics
- [ ] Preview mode prevents accidents
- [ ] Clear error messages with recovery steps
- [ ] Intuitive tool interfaces
- [ ] Comprehensive examples
### Adoption Metrics
- [ ] Positive user feedback
- [ ] No increase in support issues
- [ ] Active usage of new tools
- [ ] Community contributions
## Risk Management
### Identified Risks
1. **Data Loss**: Mitigated by automatic backups
2. **Complexity**: Mitigated by clear documentation
3. **Performance**: Mitigated by optimization
4. **Compatibility**: Mitigated by extensive testing
### Contingency Plans
1. **Rollback Strategy**: Keep previous version available
2. **Support Plan**: Dedicated support for migration
3. **Bug Response**: Rapid patch release process
4. **Feature Toggle**: Ability to disable new features
## Timeline
### Week 1: Foundation
- Days 1-2: Core infrastructure
- Days 3-4: History manipulation core
- Day 5: Initial testing
### Week 2: Primary Tools
- Days 1-2: History rewriting tools
- Days 3-4: Tag management tools
- Day 5: Integration and testing
### Week 3: Advanced Features
- Days 1-2: Diff and analysis tools
- Days 3-4: Maintenance and workflow tools
- Day 5: Comprehensive testing
### Week 4: Release
- Days 1-2: Documentation completion
- Days 3-4: Final testing and validation
- Day 5: Release preparation
## Conclusion
This implementation plan provides a structured approach to adding advanced git terminal task automation to the Commit Helper MCP. By following the safety-first principles and maintaining consistency with existing patterns, we can deliver powerful new capabilities while ensuring reliability and user confidence.
The phased approach allows for incremental delivery and validation, reducing risk and enabling early feedback. With comprehensive testing and documentation, these new tools will significantly enhance the Commit Helper MCP's value for developers working with complex git workflows.
