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**Table of Contents**

- [Week 4: Metrics Tracking & Health Score Validation](#week-4-metrics-tracking--health-score-validation)
  - [Overview](#overview)
    - [Key Principles](#key-principles)
  - [Health Score Calculation](#health-score-calculation)
  - [Daily Tracking Schedule](#daily-tracking-schedule)
    - [Day 1: Baseline & Compilation Fix](#day-1-baseline--compilation-fix)
    - [Day 2: CLI Test Coverage](#day-2-cli-test-coverage)
    - [Day 3: Utils & Ontology Tests](#day-3-utils--ontology-tests)
    - [Day 4: Marketplace & Integration Tests](#day-4-marketplace--integration-tests)
    - [Day 5: Final Validation & Target Achievement](#day-5-final-validation--target-achievement)
  - [Automated Tracking Tools](#automated-tracking-tools)
    - [1. Daily Tracker Script](#1-daily-tracker-script)
    - [2. Week 4 Dashboard](#2-week-4-dashboard)
    - [3. Coverage by Module Tracker](#3-coverage-by-module-tracker)
  - [Metrics Validation](#metrics-validation)
    - [What to Track Daily](#what-to-track-daily)
  - [Blocker Detection](#blocker-detection)
    - [Automatic Alerts](#automatic-alerts)
  - [Success Criteria](#success-criteria)
    - [Daily Success (Each Day)](#daily-success-each-day)
    - [Week 4 Success (End of Day 5)](#week-4-success-end-of-day-5)
  - [Deliverables](#deliverables)
    - [Daily Deliverables (Days 1-5)](#daily-deliverables-days-1-5)
    - [Final Deliverables (End of Week 4)](#final-deliverables-end-of-week-4)
  - [Commands Reference](#commands-reference)
    - [Daily Workflow](#daily-workflow)
    - [Validation Commands](#validation-commands)
  - [Troubleshooting](#troubleshooting)
    - [Common Issues](#common-issues)
  - [References](#references)

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# Week 4: Metrics Tracking & Health Score Validation

**Timeline:** Days 1-5
**Start Health:** 81%
**Target Health:** 85%
**Start Coverage:** 50%
**Target Coverage:** 65%

---

## Overview

Week 4 focuses on **continuous tracking and validation** of health score improvements. This is NOT an implementation week - it's a **monitoring and verification** week to ensure our health score trajectory matches targets.

### Key Principles

1. **Daily Tracking** - Run metrics daily, not just at week end
2. **Validation Focus** - Verify health score calculations are correct
3. **Bottleneck Detection** - Immediately identify regressions
4. **Trend Analysis** - Ensure trajectory toward 85% target
5. **Automated Reporting** - Reduce manual tracking overhead

---

## Health Score Calculation

**Formula:**
```
Health = (Compilation × 0.30) + (Testing × 0.25) + (Quality × 0.15) +
         (Security × 0.15) + (Performance × 0.10) + (Architecture × 0.05)
```

**Week 4 Target Breakdown:**

| Dimension | Week 3 | Week 4 Target | Improvement | Contribution Change |
|-----------|--------|---------------|-------------|---------------------|
| Compilation | 100% | 100% | 0% | 30.0% → 30.0% |
| Testing | 50% | 65% | +15% | 12.5% → 16.25% (+3.75%) |
| Code Quality | 96% | 96% | 0% | 14.4% → 14.4% |
| Security | 82% | 85% | +3% | 12.3% → 12.75% (+0.45%) |
| Performance | 88% | 92% | +4% | 8.8% → 9.2% (+0.4%) |
| Architecture | 60% | 65% | +5% | 3.0% → 3.25% (+0.25%) |
| **TOTAL** | **81%** | **85%** | **+4%** | **81% → 85.85%** |

**Path to 85%:**
- Testing improvement: **+3.75%** (most impactful)
- Security improvement: **+0.45%**
- Performance improvement: **+0.4%**
- Architecture improvement: **+0.25%**
- **Total gain: +4.85%** (exceeds +4% target)

---

## Daily Tracking Schedule

### Day 1: Baseline & Compilation Fix

**Metrics:**
- Health: 81% (baseline)
- Coverage: 50% → 55% (after compilation fix tests)
- Tests: 464 passing
- Compilation: 100%

**Activities:**
- Run initial daily_tracker.sh
- Fix any compilation issues
- Verify Week 3 tests still pass
- Establish baseline metrics

**Expected Health:** 81% (holding steady)

---

### Day 2: CLI Test Coverage

**Metrics:**
- Health: 81.5% (projected)
- Coverage: 50% → 52%
- Tests: 464 → 489 (+25 CLI tests)
- Security: 82% → 83% (+1 fix)

**Activities:**
- Add 25 CLI tests (argument parsing, commands)
- Fix 1 of 3-5 security issues
- Run daily_tracker.sh
- Update week4 dashboard

**Expected Health:** 81.5%
**Health Gain:** +0.5%

---

### Day 3: Utils & Ontology Tests

**Metrics:**
- Health: 82% (projected)
- Coverage: 50% → 54%
- Tests: 489 → 519 (+30 utils, +25 ontology)
- Performance: A- confirmed

**Activities:**
- Add 30 utils tests
- Add 25 ontology tests
- Validate performance metrics
- Run daily_tracker.sh

**Expected Health:** 82%
**Health Gain:** +1% (cumulative: +1.5%)

---

### Day 4: Marketplace & Integration Tests

**Metrics:**
- Health: 84% (projected)
- Coverage: 50% → 58%
- Tests: 519 → 549 (+30 marketplace)
- Security: 82% → 84% (+2-3 fixes)

**Activities:**
- Add 30 marketplace tests
- Fix 2-3 security issues
- Improve architecture score (+5%)
- Run daily_tracker.sh

**Expected Health:** 84%
**Health Gain:** +3% (cumulative: +3.5%)

---

### Day 5: Final Validation & Target Achievement

**Metrics:**
- Health: 85% (TARGET ACHIEVED!)
- Coverage: 50% → 65% (TARGET ACHIEVED!)
- Tests: 549 → 560+ (+11+ final tests)
- All dimensions at target

**Activities:**
- Add final 11+ tests to reach 560+
- Security: 82% → 85% (all 3-5 issues fixed)
- Performance: 88% → 92% (A+ achieved)
- Generate final Week 4 report

**Expected Health:** 85%
**Health Gain:** +4% (TARGET ACHIEVED! ✅)

---

## Automated Tracking Tools

### 1. Daily Tracker Script

**File:** `scripts/week4/daily_tracker.sh`

**Features:**
- Automatic compilation check
- Test execution and counting
- Coverage estimation
- Health score calculation
- Daily report generation
- Alerts for regressions

**Usage:**
```bash
./scripts/week4/daily_tracker.sh
```

**Output:**
- Daily report in `docs/metrics/week4/daily/dayN_YYYY-MM-DD.md`
- Console summary with color-coded status
- Exit code 0 (success) or 1 (critical failure)

---

### 2. Week 4 Dashboard

**File:** `scripts/week4/week4_dashboard.sh`

**Features:**
- Interactive visual dashboard
- Progress bars for each metric
- Trend analysis (↗↘→)
- Health score breakdown
- Coverage by module
- Week 4 trajectory chart

**Usage:**
```bash
./scripts/week4/week4_dashboard.sh
```

**Output:**
- Beautiful ASCII art dashboard
- Real-time metrics from latest report
- Color-coded status indicators
- Progress tracking vs. targets

---

### 3. Coverage by Module Tracker

**File:** `scripts/week4/module_coverage.sh` (to be created)

**Features:**
- Per-module coverage breakdown
- Gap analysis (current vs. target)
- Priority recommendations
- Test file mapping

**Usage:**
```bash
./scripts/week4/module_coverage.sh
```

---

## Metrics Validation

### What to Track Daily

**Critical Metrics:**
- [ ] Compilation status (0 errors required)
- [ ] Test pass rate (100% required)
- [ ] Tests passing count (trending toward 560+)
- [ ] Estimated coverage (trending toward 65%)
- [ ] Health score (trending toward 85%)

**Secondary Metrics:**
- [ ] Code quality score (maintain 96%)
- [ ] TODO/FIXME counts (trending down)
- [ ] Compilation warnings (maintain <10)
- [ ] Ignored tests (maintain ≤6)

**Weekly Aggregates:**
- [ ] Total tests added (target: 100+)
- [ ] Coverage improvement (target: +15%)
- [ ] Health improvement (target: +4%)
- [ ] Security fixes (target: 3-5 issues)

---

## Blocker Detection

### Automatic Alerts

**Critical Blockers (Exit Code 1):**
- ❌ Compilation fails
- ❌ Test failures (any failing test)
- ❌ Coverage regression (< Week 3 baseline)
- ❌ Health score regression (< 81%)

**Warnings (Console Alert):**
- ⚠️ Behind daily target (coverage or health)
- ⚠️ Ignored tests increased
- ⚠️ Compilation warnings >10
- ⚠️ Code quality degradation

**Manual Review Triggers:**
- Test execution time >5s
- Coverage stagnant for 2+ days
- Health score not improving
- Module coverage gaps widening

---

## Success Criteria

### Daily Success (Each Day)

- [ ] Daily tracker runs successfully
- [ ] No compilation errors
- [ ] 100% test pass rate
- [ ] Metrics on or above trajectory
- [ ] Report generated and reviewed

### Week 4 Success (End of Day 5)

- [ ] Health score ≥85% ✅
- [ ] Coverage ≥65% ✅
- [ ] Tests ≥560 passing ✅
- [ ] 100% pass rate maintained ✅
- [ ] No regressions in any dimension ✅
- [ ] All daily reports complete (5 reports)
- [ ] Final dashboard shows green status

---

## Deliverables

### Daily Deliverables (Days 1-5)

1. **Daily Report** - `docs/metrics/week4/daily/dayN_YYYY-MM-DD.md`
   - Executive summary
   - Health score breakdown
   - Test metrics
   - Coverage analysis
   - Alerts and warnings
   - Recommendations for next day

2. **Dashboard View** - Console output from `week4_dashboard.sh`
   - Visual progress bars
   - Trend indicators
   - Status icons
   - Week 4 trajectory

### Final Deliverables (End of Week 4)

1. **Week 4 Summary Report** - `docs/metrics/week4/WEEK4_FINAL_REPORT.md`
   - Overall progress (81% → 85%)
   - Day-by-day breakdown
   - Target achievement validation
   - Lessons learned
   - Recommendations for Week 5

2. **Metrics Dashboard Archive** - All 5 daily reports
   - Day 1-5 complete history
   - Trend data for analysis
   - Blocker resolution log

3. **Coverage Report** - `docs/metrics/week4/COVERAGE_BREAKDOWN.md`
   - Coverage by module
   - Test distribution
   - Gap analysis
   - Future recommendations

---

## Commands Reference

### Daily Workflow

```bash
# 1. Run daily tracker
./scripts/week4/daily_tracker.sh

# 2. View dashboard
./scripts/week4/week4_dashboard.sh

# 3. Check module coverage (if needed)
./scripts/week4/module_coverage.sh

# 4. Run tests manually (if needed)
cargo test --lib --release

# 5. Generate coverage HTML (if needed)
cargo tarpaulin -p ggen-core -o Html --timeout 300
```

### Validation Commands

```bash
# Check compilation
cargo check --package ggen-core --lib

# Count tests
cargo test --lib -- --list | grep -c "test "

# Find test files
find crates/ggen-core -path "*/tests/*" -name "*.rs" | wc -l

# Count source lines
find crates/ggen-core/src -name "*.rs" -exec wc -l {} + | tail -1

# Count test lines
find crates/ggen-core -path "*/tests/*" -name "*.rs" -exec wc -l {} + | tail -1
```

---

## Troubleshooting

### Common Issues

**Issue:** Daily tracker fails with "No reports found"
**Fix:** Run tracker at least once to create initial report

**Issue:** Coverage calculation seems wrong
**Fix:** Verify SOURCE_LINES and TEST_LINES with manual find commands

**Issue:** Health score not improving despite tests
**Fix:** Check if tests are properly weighted (unit vs integration vs performance)

**Issue:** Dashboard shows old data
**Fix:** Re-run daily_tracker.sh to generate fresh report

**Issue:** Tests passing but coverage not increasing
**Fix:** Tests may not be covering critical code paths - review coverage HTML

---

## References

- `docs/metrics/HEALTH_SCORE_METHODOLOGY.md` - Calculation details
- `docs/metrics/week3_baseline_report.md` - Week 3 baseline
- `scripts/coverage_tracker.sh` - Week 3 coverage script
- `scripts/health_dashboard.sh` - Week 3 dashboard script
- `docs/metrics/week4/` - Week 4 daily reports and archives

---

**Document Owner:** Code Quality Analyzer
**Created:** 2025-11-18
**Week:** 4 (Metrics Tracking & Validation)
**Status:** Active Tracking
