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57---
id: "05"
title: Core Business Logic
status: todo
labels:
- business-logic
- crud
- search
priority: high
created_at: 2025-09-12T05:33:54.902233Z
updated_at: 2025-09-12T06:31:14.761556Z
history:
- timestamp: 2025-09-12T06:31:14.761549Z
change: Implementation plan changed
- timestamp: 2025-09-12T06:31:14.761552Z
change: 'Added acceptance criterion #7: "Task creation with comprehensive validation"'
- timestamp: 2025-09-12T06:31:14.761553Z
change: 'Added acceptance criterion #8: "Task listing with filtering by status, parent, assignees, labels"'
- timestamp: 2025-09-12T06:31:14.761554Z
change: 'Added acceptance criterion #9: "Task retrieval by ID with proper error handling"'
- timestamp: 2025-09-12T06:31:14.761554Z
change: 'Added acceptance criterion #10: "Task update operations with field-specific updates"'
- timestamp: 2025-09-12T06:31:14.761555Z
change: 'Added acceptance criterion #11: "Content-based search functionality"'
- timestamp: 2025-09-12T06:31:14.761555Z
change: 'Added acceptance criterion #12: "Task archival system"'
---
## Description
Implement the core task management operations including CRUD operations, search, filtering, and hierarchical task relationships.
## Acceptance Criteria
<!-- AC:BEGIN -->
- [ ] #1 Task creation with validation
- [ ] #2 Task listing with filtering
- [ ] #3 Task retrieval by ID
- [ ] #4 Task update operations
- [ ] #5 Content-based search
- [ ] #6 Task archival system
- [ ] #7 Task creation with comprehensive validation
- [ ] #8 Task listing with filtering by status, parent, assignees, labels
- [ ] #9 Task retrieval by ID with proper error handling
- [ ] #10 Task update operations with field-specific updates
- [ ] #11 Content-based search functionality
- [ ] #12 Task archival system
<!-- AC:END -->
## Implementation Plan
1. Implement task creation with validation\n2. Build filtering system for task listing\n3. Create task retrieval with error handling\n4. Implement selective update operations\n5. Build search functionality\n6. Create archival system"
## Implementation Notes