Enhanced Knowledge Graph Memory Server

# Refactoring Task Summary ## Overview This document summarizes the comprehensive planning created for the index.ts refactoring project. **Total Tasks Created**: 180+ granular tasks **Phases**: 8 phases over 7 weeks **Estimated Effort**: 232.5 hours --- ## Documents Created ### 1. **REFACTORING_PLAN.md** (1,474 lines) **Purpose**: Strategic refactoring roadmap **Contents**: - Executive summary and current state analysis - Proposed architecture with 15-20 modules - Design principles (including strict 500-line limit) - Detailed module breakdown for all components - 8-phase implementation strategy - Migration path with backward compatibility - Testing strategy (target >85% coverage) - Benefits, risks, and mitigation strategies - Success criteria and metrics - Timeline and effort estimates - Appendices with file size comparisons and dependency graphs **Key Sections**: - Module Organization Strategy (directory tree with line counts) - Detailed breakdown of all 55+ implementation files - Test file organization (27 test files) - Phase-by-phase implementation guide --- ### 2. **.github/FILE_SIZE_POLICY.md** (412 lines) **Purpose**: Enforce strict file size limits **Contents**: - Strict file size rules (500 lines implementation, 400 lines tests) - Rationale for limits - 4 splitting strategies with code examples: 1. Extract Utilities 2. Split by Responsibility 3. Split by Feature 4. Split Test Files - Pre-commit hook script for automated checking - CI/CD integration example (GitHub Actions) - Review checklist for PRs - Real-world examples of good file splits **Enforcement Mechanisms**: - Pre-commit hook (auto-reject oversized files) - CI/CD checks (fail build on violations) - Clear error messages and guidance --- ### 3. **IMPLEMENTATION_TASKS.md** (1,761 lines) **Purpose**: Granular task breakdown with acceptance criteria **Contents**: - 110 detailed tasks organized by phase - Each task includes: - Task number (Phase.Section.Task) - Status indicator (Pending/In Progress/Completed/Blocked) - Dependencies (prerequisite tasks) - Target file size constraint - Specific content outline - Acceptance criteria checklist - Time estimate - Critical path analysis - Parallel work opportunities - Quality gates between phases **Phase Breakdown**: - **Phase 1**: Foundation (7 tasks, 4.5 hours) - **Phase 2**: Utilities (10 tasks, 12 hours) - **Phase 3**: Storage (3 tasks, 6 hours) - **Phase 4**: Core Managers (8 tasks, 20 hours) - **Phase 5**: Search Module (14 tasks, 40 hours) - **Phase 6**: Feature Managers (52 tasks, 75 hours) - **Phase 7**: MCP Layer (15 tasks, 37 hours) - **Phase 8**: Integration & Testing (16 tasks, 38 hours) --- ### 4. **Active Todo List** (180+ tasks) **Purpose**: Granular, trackable task list for implementation **Structure**: - Phase 1-3: 125 ultra-granular tasks (fully detailed) - Phase 4: 60 granular tasks (EntityManager, RelationManager, ObservationManager) - Phase 5-8: 14 consolidated tasks (to be expanded during implementation) **Task Granularity Examples**: - ❌ "Extract types" (too broad) - ✅ "Extract Entity interface to types/entity.types.ts" (specific) - ✅ "Add JSDoc comments to entity types" (actionable) - ✅ "Verify types/entity.types.ts is <100 lines" (measurable) **Tracking Features**: - Status for each task (pending/in_progress/completed/blocked) - Active form descriptions - Clear dependencies - File size verification per task --- ## Implementation Approach ### Phase 1-3: Foundation & Utilities (Weeks 1-2) **Tasks**: 125 ultra-detailed tasks **Focus**: Non-breaking changes, pure functions, utilities 1. **Create directory structure** 2. **Extract all type definitions** (6 files) 3. **Extract utilities** (5 modules + 5 test files): - Levenshtein distance - TF-IDF algorithms - Date utilities - Validation utilities - Path utilities 4. **Extract storage layer** (GraphStorage module) **Risk**: Low - No business logic changes --- ### Phase 4: Core Managers (Week 3) **Tasks**: 60 detailed tasks **Focus**: CRUD operations with composition pattern 1. **EntityManager** (create, delete, get, update) 2. **RelationManager** (create, delete, get) 3. **ObservationManager** (add, delete) 4. **Refactor KnowledgeGraphManager** (use composition) 5. **Integration tests** **Risk**: Medium - Business logic changes --- ### Phase 5: Search Module (Week 4) **Tasks**: 14 consolidated tasks (to be expanded) **Focus**: Complex search algorithms 1. **BasicSearch** (text search, filters) 2. **RankedSearch** (TF-IDF) 3. **BooleanSearch** (query parser) 4. **FuzzySearch** (Levenshtein) 5. **SearchSuggestions** (trigrams) 6. **SavedSearchManager** (persistence) 7. **SearchManager** (orchestrator) **Risk**: High - Complex algorithms --- ### Phase 6: Feature Managers (Week 5) **Tasks**: 14 consolidated tasks (to be expanded) **Focus**: Advanced features 1. **TagManager** (tags + aliases) 2. **ImportanceManager** (importance levels) 3. **HierarchyManager** (parent-child) 4. **AnalyticsManager** (stats + validation) 5. **CompressionManager** (deduplication) 6. **ArchiveManager** (criteria-based archiving) 7. **Import/Export** (10 format handlers) **Risk**: Medium-High - Many interdependencies --- ### Phase 7: MCP Layer (Week 6) **Tasks**: 15 consolidated tasks (to be expanded) **Focus**: API definitions and handlers 1. **Server setup** 2. **Tool definitions** (6 files) 3. **Tool handlers** (6 files) 4. **Registries** (tool + handler) 5. **Refactor main index.ts** (<50 lines) **Risk**: Medium - API layer changes --- ### Phase 8: Final Integration & Testing (Week 7) **Tasks**: 16 consolidated tasks **Focus**: Quality assurance and release 1. **Integration testing** (backward compatibility + E2E) 2. **Performance testing** (benchmarks + large graphs) 3. **Code quality** (coverage, ESLint, TypeScript) 4. **Documentation** (README, ARCHITECTURE, MIGRATION, CHANGELOG) 5. **Automation** (pre-commit hooks, CI/CD) 6. **Release** (review, notes, version bump) **Risk**: Low - Validation phase --- ## Success Metrics ### Code Quality - ✅ All files < 500 lines (implementation) or < 400 lines (tests) - ✅ Average file size ~201 lines - ✅ Test coverage > 85% - ✅ Zero ESLint errors - ✅ Zero TypeScript errors - ✅ Cyclomatic complexity < 10 per function ### Functional Metrics - ✅ All 45 MCP tools working - ✅ All existing tests passing - ✅ New tests for all modules (27 test files) - ✅ 100% backward compatibility - ✅ Performance within 5% of baseline ### Developer Experience - ✅ Onboarding time reduced by 50% - ✅ Code review time reduced by 30% - ✅ Feature development time reduced by 20% - ✅ Build time < 10 seconds - ✅ Test suite runs in < 30 seconds --- ## File Structure After Refactoring ``` Before: 1 file (4,187 lines) After: 76 files (avg 201 lines, max 500 lines) Implementation Files: 55 - Types: 6 files - Core: 5 files - Search: 7 files - Features: 17 files - Utils: 5 files - MCP: 14 files - Config: 1 file Test Files: 21 - Unit tests: 15 files - Integration tests: 4 files - Performance tests: 2 files ``` --- ## How to Use This Planning ### For Implementation: 1. **Start with Phase 1, Task 1** in the todo list 2. **Complete acceptance criteria** for each task 3. **Verify file size** after each task 4. **Run tests** immediately after implementation 5. **Mark task complete** in todo list 6. **Move to next task** ### For Tracking: - **Todo list**: Granular progress tracking - **IMPLEMENTATION_TASKS.md**: Detailed reference - **REFACTORING_PLAN.md**: Strategic overview - **FILE_SIZE_POLICY.md**: Enforcement guidelines ### For Quality: - **Before each commit**: Run tests - **Before each PR**: Check file sizes - **Before each phase**: Review acceptance criteria - **Before release**: Run full test suite + coverage --- ## Parallel Work Opportunities Tasks that can be done in parallel: ### Phase 2 (Utilities): - ✅ Levenshtein + tests - ✅ TF-IDF + tests - ✅ Date utils + tests - ✅ Validation utils + tests - ✅ Path utils + tests All 5 utility modules can be built simultaneously. ### Phase 6 (Format Handlers): - ✅ JSON exporter/importer - ✅ CSV exporter/importer - ✅ GraphML exporter/importer - ✅ GEXF exporter - ✅ DOT exporter - ✅ Markdown exporter - ✅ Mermaid exporter All 10 format handlers can be built simultaneously. --- ## Critical Dependencies ### Must Complete in Order: 1. **Phase 1** → Phase 2 (need directory structure) 2. **Phase 2** → Phase 3 (need utilities for storage) 3. **Phase 3** → Phase 4 (need storage for managers) 4. **Phase 4** → Phase 5 (need core for search) 5. **Phase 5** → Phase 6 (need search for features) 6. **Phase 6** → Phase 7 (need features for MCP) 7. **Phase 7** → Phase 8 (need MCP for integration) ### Within Phase Parallelization: - Phase 2: All utilities parallel - Phase 4: Entity, Relation, Observation managers can be parallel - Phase 5: All search types can be parallel (after BasicSearch) - Phase 6: All format handlers can be parallel - Phase 7: All tool definitions can be parallel --- ## Next Steps ### Immediate Actions: 1. ✅ Planning complete (3 documents + todo list) 2. ✅ Todo list loaded (180+ tasks) 3. 🔄 **Ready to begin Phase 1, Task 1** 4. ⏸️ Awaiting approval to start implementation ### Phase 1 Kickoff: ```bash # Task 1: Create base directory structure mkdir -p src/memory/{types,core,search,features,utils,mcp,config} mkdir -p src/memory/features/import-export/formats mkdir -p src/memory/mcp/{tools,handlers} mkdir -p src/memory/__tests__/{unit,integration,performance} mkdir -p src/memory/__tests__/unit/{core,search,features,utils} ``` ### Expected Timeline: - **Week 1**: Phase 1-2 (Foundation & Utilities) - **Week 2**: Phase 3 (Storage Layer) - **Week 3**: Phase 4 (Core Managers) - **Week 4**: Phase 5 (Search Module) - **Week 5**: Phase 6 (Feature Managers) - **Week 6**: Phase 7 (MCP Layer) - **Week 7**: Phase 8 (Integration & Testing) --- ## Conclusion The refactoring plan is comprehensive, detailed, and ready for execution: ✅ **Strategic Plan**: REFACTORING_PLAN.md (1,474 lines) ✅ **File Size Policy**: .github/FILE_SIZE_POLICY.md (412 lines) ✅ **Task Breakdown**: IMPLEMENTATION_TASKS.md (1,761 lines) ✅ **Todo List**: 180+ granular, trackable tasks ✅ **Total Documentation**: 3,647 lines of planning **Total Refactoring Effort**: 232.5 hours over 7 weeks **Outcome**: Transform 4,187-line monolith into 76 maintainable files averaging 201 lines each, with >85% test coverage and 100% backward compatibility. 🚀 **Ready to begin implementation!** --- **Document Version**: 1.0 **Created**: 2025-11-23 **Status**: Planning Complete - Ready for Implementation