Agent skill
capacity-planning
Plan infrastructure capacity for expected load. Use when sizing systems, planning for growth, or analyzing resource requirements. Covers load estimation and resource sizing.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/capacity-planning-dralgorhythm-claude-agentic-frame
SKILL.md
Capacity Planning
Workflows
- Baseline: Measure current resource usage
- Forecast: Project future growth
- Size: Calculate required resources
- Buffer: Add headroom for spikes
- Monitor: Track actual vs. predicted
Key Metrics
Compute
- CPU utilization (target: 60-70%)
- Memory usage
- Request latency (P50, P95, P99)
Storage
- Disk IOPS
- Throughput (MB/s)
- Capacity growth rate
Network
- Bandwidth utilization
- Connection counts
- Packet loss
Estimation Framework
Little's Law
L = λ × W
L = Average number of items in system
λ = Average arrival rate
W = Average time in system
Example Calculation
Given:
- 1000 requests/second
- 100ms average response time
Required concurrent connections:
L = 1000 × 0.1 = 100 concurrent connections
Resource Sizing
Database Connections
connections = (requests_per_second × avg_query_time) × 1.5
Memory
memory = (concurrent_users × memory_per_user) + base_overhead
CPU Cores
cores = (peak_rps × cpu_time_per_request) / target_utilization
Growth Planning
Traffic Growth
- Historical growth rate
- Planned marketing/launches
- Seasonal patterns
Data Growth
- Records per day
- Record size
- Retention policy
Capacity Planning Document
- Current state metrics
- Growth assumptions
- Resource projections (3, 6, 12 months)
- Cost estimates
- Scaling triggers and thresholds
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