# Phase 3: Complexity Refactoring - Status Summary

**Generated**: 2026-02-02 17:55 UTC
**Phase**: 3 - Complexity Refactoring
**Status**: 🟢 PLANNED & READY FOR EXECUTION

---

## Executive Summary

Phase 3 comprehensive implementation plan and baseline analysis **COMPLETE**.  
**Ready to launch first wave of refactoring agents.**

### What Was Delivered

1. ✅ **Phase 3 Implementation Guide** (`docs/guides/PHASE_3_IMPLEMENTATION_GUIDE.md`)
   - Complete WBS with 21 workstreams
   - DAG dependency graph for parallel execution
   - Agent delegation strategy (3 waves)
   - Risk mitigation and rollback plans
   - Success metrics and DoD criteria

2. ✅ **Phase 3 Kickoff Report** (`docs/reports/PHASE_3_KICKOFF.md`)
   - Baseline assessment (16,600 violations)
   - Quantitative targets (60-70% reduction)
   - Timeline and milestones
   - Monitoring and reporting strategy

3. ✅ **First Wave Analysis** (`docs/reports/PHASE_3_FIRST_WAVE_ANALYSIS.md`)
   - Python C901: 248 violations analyzed, top 10 functions identified
   - Go funlen: ~800 violations estimated, patterns documented
   - Frontend jsx-depth: Categories and patterns defined
   - Refactoring recommendations by type

---

## Baseline Snapshot

### Python Backend
- **604 complexity violations** total
- Top file: `src/tracertm/api/main.py` (11 violations)
- Highest complexity: `augment_graph_semantics.py::main()` (33)
- Categories: API (20%), Services (35%), Migrations (15%), Scripts (25%), MCP (10%), Tests (5%)

### Go Backend
- **~13,000 total violations** (~2,800 complexity-related)
- ~800 funlen (function length)
- ~600 gocyclo (cyclomatic complexity)
- ~400 dupl (code duplication)
- ~1,000 mnd/goconst (magic values)

### Frontend
- **502,822 baseline lines** (oxlint output)
- jsx-max-depth violations (TBD - needs JSON parse)
- Complexity violations (TBD)
- import/no-cycle issues (TBD)

---

## Phase 3 Targets

| Metric | Current | Target | Reduction |
|--------|---------|--------|-----------|
| Python Complexity | 604 | ~180 | 70% |
| Go Complexity | ~2,800 | ~1,100 | 60% |
| Frontend Depth/Complexity | TBD | 50% | 50% |

**Success Criteria**:
- All CI checks pass
- Test coverage ≥85%
- Zero production regressions

---

## Agent Swarm Plan

### Wave 1: Proof of Concept (Ready to Launch)

**Objective**: Validate refactoring patterns

**Agents** (3-5):
1. Python - Alembic migrations (LOW risk)
2. Python - High-complexity scripts (MEDIUM risk)
3. Python - API main.py decomposition (MEDIUM risk)
4. Go - Distributed coordination duplication (LOW risk)
5. Go - Test cleanup (LOW risk)

**Duration**: 2-4 hours
**Success Gate**: CI green, patterns validated

---

### Wave 2: Full-Scale Refactoring (Pending Wave 1)

**Agents**: 15-21 (parallel execution)
- Python: 8 agents (all workstreams)
- Go: 8 agents (all workstreams)
- Frontend: 5 agents (all workstreams)

**Duration**: 3-6 hours
**Success Gate**: All targets hit, DoD met

---

## Risk Assessment

**Low Risk** (60%): Migrations, tests, duplication
**Medium Risk** (35%): API handlers, services, components
**High Risk** (5%): Complex scripts, stateful logic

**Mitigation**: Feature branches, per-agent CI, atomic rollback

---

## Next Actions

**IMMEDIATE** (Manual Trigger Required):
1. **Review & Approve** this plan
2. **Launch Wave 1** agents (3-5 parallel)
3. **Monitor** CI status (4-hour checkpoints)

**AUTOMATED** (After Wave 1 Success):
4. **Launch Wave 2** (full swarm)
5. **Verify** baselines and tests
6. **Close** Phase 3 with completion report

---

## Timeline

- ✅ **Planning**: 2026-02-02 17:00-17:55 (55 min)
- 🟡 **Wave 1**: 2026-02-02 18:00-22:00 (4 hours est.)
- ⚪ **Wave 2**: 2026-02-03 00:00-06:00 (6 hours est.)
- ⚪ **Verification**: 2026-02-03 06:00-10:00 (4 hours est.)
- ⚪ **Complete**: 2026-02-03 10:00 (TARGET)

**Total Estimate**: 14-20 hours (wall clock)

---

## Deliverables

| Document | Status | Location |
|----------|--------|----------|
| Implementation Guide | ✅ | `docs/guides/PHASE_3_IMPLEMENTATION_GUIDE.md` |
| Kickoff Report | ✅ | `docs/reports/PHASE_3_KICKOFF.md` |
| First Wave Analysis | ✅ | `docs/reports/PHASE_3_FIRST_WAVE_ANALYSIS.md` |
| This Status Summary | ✅ | `PHASE_3_STATUS.md` (root) |
| Completion Report | ⚪ | `docs/reports/PHASE_3_COMPLETION_REPORT.md` (pending) |

---

## How to Launch Wave 1

**Manual Execution** (recommended for first wave validation):

```bash
# Option 1: Direct agent invocation (if agent system available)
# Launch 3-5 parallel agents with prompts from PHASE_3_FIRST_WAVE_ANALYSIS.md

# Option 2: Manual refactoring with validation
# Pick LOW risk items first (Alembic, Go dupl, tests)
# Follow patterns from analysis document
# Run CI per change
# Validate before proceeding

# Option 3: Hybrid (agent + human review)
# Agent refactors → Human reviews → Merge on CI green
```

**Automated Execution** (after Wave 1 validation):
- Full swarm launch (15-21 agents)
- Automated CI monitoring
- Auto-rollback on failures

---

## Success So Far

✅ **Comprehensive analysis** of 16,600+ violations  
✅ **Clear refactoring patterns** for each category  
✅ **Risk-stratified approach** (low → medium → high)  
✅ **Parallel execution plan** (3 waves, DAG-based)  
✅ **Validation gates** (CI, coverage, tests)  
✅ **Rollback procedures** (feature branches, atomic)

**Phase 3 planning complete. Ready for execution.**

---

**Owner**: BMAD Master / Tech Lead  
**Next Update**: Wave 1 completion (ETA 4 hours)
