Agent skill
cost-optimization
Cloud cost management, rightsizing, and FinOps practices.
Install this agent skill to your Project
npx add-skill https://github.com/timequity/plugins/tree/main/craft-coder/infra/cost-optimization
SKILL.md
Cost Optimization
FinOps Principles
- Visibility - Know what you spend
- Optimization - Reduce waste
- Governance - Control growth
Quick Wins
| Action | Savings |
|---|---|
| Reserved instances | 30-70% |
| Spot instances | 60-90% |
| Rightsizing | 20-40% |
| Unused resources | 100% |
| Storage tiering | 50-80% |
Rightsizing
# AWS: Find underutilized instances
aws cloudwatch get-metric-statistics \
--namespace AWS/EC2 \
--metric-name CPUUtilization \
--dimensions Name=InstanceId,Value=i-xxx \
--start-time 2024-01-01T00:00:00Z \
--end-time 2024-01-31T00:00:00Z \
--period 86400 \
--statistics Average
If CPU < 20% avg: Downsize or use smaller instance.
Reserved vs Spot
| Workload | Recommendation |
|---|---|
| Steady baseline | Reserved (1-3 year) |
| Variable load | On-demand + Spot |
| Batch processing | Spot |
| Stateless services | Spot with fallback |
Storage Optimization
# S3 Lifecycle
resource "aws_s3_bucket_lifecycle_configuration" "main" {
bucket = aws_s3_bucket.main.id
rule {
id = "archive"
status = "Enabled"
transition {
days = 30
storage_class = "STANDARD_IA"
}
transition {
days = 90
storage_class = "GLACIER"
}
}
}
Monitoring Costs
- AWS Cost Explorer
- GCP Billing Reports
- Azure Cost Management
- Third-party: CloudHealth, Spot.io
Tagging Strategy
tags = {
Environment = "production"
Team = "platform"
Service = "api"
CostCenter = "engineering"
}
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