quality-metrics

# Quality Metrics <default_to_action> When measuring quality or building dashboards: 1. MEASURE outcomes (bug escape rate, MTTD) not activities (test count) 2. AVOID vanity metrics: 100% coverage means nothing if tests don't catch bugs 3. SET thresholds that drive behavior (quality gates block bad code) 4. TREND over time: Direction matters more than absolute numbers </default_to_action> ## Quick Reference Card ### When to Use - Building quality dashboards - Defining quality gates - Evaluating testing effectiveness - Justifying quality investments ### Quality Gate Thresholds | Metric | Blocking Threshold | Warning | |--------|-------------------|---------| | Test pass rate | 100% | - | | Critical coverage | > 80% | > 70% | | Security critical | 0 | - | | Performance p95 | < 200ms | < 500ms | | Flaky tests | < 2% | < 5% | --- ## Dashboard Design ```typescript // Agent generates quality dashboard await Task("Generate Dashboard", { metrics: { delivery: ['deployment-frequency', 'lead-time', 'change-failure-rate'], quality: ['bug-escape-rate', 'test-effectiveness', 'defect-density'], stability: ['mttd', 'mttr', 'availability'], process: ['code-review-time', 'flaky-test-rate', 'coverage-trend'] }, visualization: 'grafana', alerts: { critical: { bug_escape_rate: '>20%', mttr: '>24h' }, warning: { coverage: '<70%', flaky_rate: '>5%' } } }, "qe-quality-analyzer"); ``` --- ## Quality Gate Configuration ```json { "qualityGates": { "commit": { "coverage": { "min": 80, "blocking": true }, "lint": { "errors": 0, "blocking": true } }, "pr": { "tests": { "pass": "100%", "blocking": true }, "security": { "critical": 0, "blocking": true }, "coverage_delta": { "min": 0, "blocking": false } }, "release": { "e2e": { "pass": "100%", "blocking": true }, "performance_p95": { "max_ms": 200, "blocking": true }, "bug_escape_rate": { "max": "10%", "blocking": false } } } } ``` --- ## Agent-Assisted Metrics ```typescript // Calculate quality trends await Task("Quality Trend Analysis", { timeframe: '90d', metrics: ['bug-escape-rate', 'mttd', 'test-effectiveness'], compare: 'previous-90d', predictNext: '30d' }, "qe-quality-analyzer"); // Evaluate quality gate await Task("Quality Gate Evaluation", { buildId: 'build-123', environment: 'staging', metrics: currentMetrics, policy: qualityPolicy }, "qe-quality-gate"); ``` --- ## Agent Coordination Hints ### Memory Namespace ``` aqe/quality-metrics/ ├── dashboards/* - Dashboard configurations ├── trends/* - Historical metric data ├── gates/* - Gate evaluation results └── alerts/* - Triggered alerts ``` ### Fleet Coordination ```typescript const metricsFleet = await FleetManager.coordinate({ strategy: 'quality-metrics', agents: [ 'qe-quality-analyzer', // Trend analysis 'qe-test-executor', // Test metrics 'qe-coverage-analyzer', // Coverage data 'qe-production-intelligence', // Production metrics 'qe-quality-gate' // Gate decisions ], topology: 'mesh' }); ``` --- ## Related Skills - [agentic-quality-engineering](../agentic-quality-engineering/) - Agent coordination - [cicd-pipeline-qe-orchestrator](../cicd-pipeline-qe-orchestrator/) - Quality gates - [risk-based-testing](../risk-based-testing/) - Risk-informed metrics - [shift-right-testing](../shift-right-testing/) - Production metrics --- ## Remember **With Agents:** Agents track metrics automatically, analyze trends, trigger alerts, and make gate decisions. Use agents to maintain continuous quality visibility.