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commands/aggregate-metrics.md

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+---
+description: Aggregate performance metrics centrally
+---
+
+# Metrics Aggregator
+
+Implement centralized metrics aggregation for comprehensive performance visibility.
+
+## Metric Categories
+
+1. **Application Metrics**: Custom business and performance metrics
+2. **System Metrics**: CPU, memory, disk, network
+3. **Database Metrics**: Query performance, connections
+4. **Cache Metrics**: Hit rates, memory usage
+5. **Queue Metrics**: Message rates, processing times
+6. **External Service Metrics**: Third-party API performance
+
+## Process
+
+1. Design metrics taxonomy and naming convention
+2. Choose metrics platform (Prometheus, StatsD, CloudWatch, etc.)
+3. Implement metric instrumentation
+4. Configure aggregation and retention
+5. Create visualization dashboards
+6. Set up alerting on key metrics
+
+## Output
+
+Provide:
+- Metrics instrumentation code
+- Metric naming and tagging standards
+- Collection configuration (Prometheus, etc.)
+- Aggregation rules and retention policies
+- Dashboard configurations (Grafana, etc.)
+- Alert definitions for critical metrics