# Technical Debt Status

**Last Updated:** 2025-12-04
**Status:** 2 of 14 items complete (Sprint 1-2)

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## Quick Summary

A comprehensive tech debt audit identified **14 actionable items** across resource management, architecture, testing, and code organization. The two critical items (resource leaks and service instantiation boilerplate) have been completed.

### Progress Overview

| Priority | Complete | Pending | Items |
|----------|----------|---------|-------|
| **Critical** | 2 | 0 | TD-001 (Session Leak), TD-002 (Service Registry) |
| **High** | 0 | 3 | TD-003 (Repository Reads), TD-004 (VCRpy), TD-005 (Exceptions) |
| **Medium** | 0 | 4 | TD-006 (God Class), TD-007 (Type Ignores), TD-008 (Service Hierarchy), TD-009 (Large Repos) |
| **Low** | 0 | 5 | TD-010 through TD-014 |

### Impact So Far

- ✅ **-549 lines of code** removed (net reduction)
- ✅ **0 AsyncSession resource leaks** (was: 6)
- ✅ **0 service instantiation if/elif blocks** (was: 21)
- ✅ **863 unit tests passing** (0 regressions)

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## Completed Items (Sprint 1-2)

### TD-001: AsyncSession Resource Leak ✅
**Commit:** `fbf974d` | **Effort:** 2 hours

Fixed resource leaks in MCP tools and REST endpoints by migrating to async context manager pattern.

**Impact:** Zero session leaks, -137 lines of code

### TD-002: Service Instantiation Boilerplate ✅
**Commit:** `315cdcb` | **Effort:** 3 hours

Replaced 21 if/elif blocks with registry-based factory pattern for service instantiation.

**Impact:** -412 lines of code, 91% reduction in helper function size

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## Next Recommended (Sprint 2)

### TD-003: Repository Read Pattern Standardization [HIGH]
**Estimated Effort:** 5 days

Column-only reads by default with opt-in detail methods. Eliminates JSON parsing overhead and stale data risks.

**Blocks:** TD-009 (Large Repository Files)

### TD-004: VCRpy Integration [HIGH]
**Estimated Effort:** 3 days

Record/replay HTTP interactions to enable 18 skipped integration tests to run in CI without API credentials.

### TD-005: Broad Exception Handling [HIGH]
**Estimated Effort:** 2-3 days

Replace 26 broad `except Exception` handlers with specific exception types and domain exceptions.

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## Future Sprints

**Sprint 3 (Medium Priority):**
- TD-006: Decompose cache.py god class (1,518 LOC → <300 LOC modules)
- TD-008: Service hierarchy refactor (eliminate `client=None` patterns)
- TD-009: Split large repository files (1,555 LOC → <400 LOC modules)

**Ongoing (Low Priority):**
- TD-007: Reduce type ignore comments (117 → <50)
- TD-010 through TD-014: Configuration, edge cases, deprecation warnings

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## References

- **Master Plan:** [planning/tech-debt-remediation-plan.md](planning/tech-debt-remediation-plan.md) - Detailed specifications for all 14 items
- **Sprint 1-2 Archive:** [sprint-artifacts/archive/tech-debt-critical-sprint.md](sprint-artifacts/archive/tech-debt-critical-sprint.md) - Implementation details for TD-001 & TD-002
- **Dependency Graph:** See master plan for item dependencies
- **Success Metrics:** See master plan for measurable targets

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## Contributing

When working on tech debt items:

1. Review the master plan for acceptance criteria and dependencies
2. Check if the item blocks or is blocked by other items
3. Update the master plan with commit hashes and results
4. Archive completed sprint details in `sprint-artifacts/archive/`
5. Update this summary with new completion status

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**Note:** This is a living document. Sprint 2 planning should prioritize TD-003 (Epic 013), TD-004 (VCRpy), and TD-005 (Exception Handling) for maximum impact on code quality and test coverage.
