aws-cost-optimizerlisted

# AWS Cost Optimizer ## Overview Keywords: AWS cost, FinOps, right-sizing, idle resources, orphaned resources, Savings Plans, Reserved Instances, RI, Spot, cost allocation tags, Cost Explorer, CUR, unblended cost, amortized cost, NAT gateway, gp2 to gp3, S3 lifecycle, Graviton, Compute Optimizer, anomaly detection. This skill drives a repeatable cost-reduction workflow across the five highest-leverage levers: **eliminate** (idle/orphaned), **right-size** (over-provisioned), **commit** (Savings Plans / RIs), **modernize** (newer/cheaper SKUs and storage tiers), and **attribute** (tagging + showback). Always quantify monthly savings, rank by effort-vs-impact, and never recommend a change without stating its risk and rollback. Use the bundled assets: - `references/cost-levers.md` — the full catalog of cost-reduction levers per service with detection signals and typical savings. - `references/savings-plans-vs-ri.md` — decision framework and break-even math for commitment purchases. - `references/tagging-strategy.md` — cost-allocation tag taxonomy and enforcement patterns. - `scripts/cost_analysis.py` — stdlib-only analyzer that scores resources for waste and ranks recommendations from JSON inventory. - `templates/cost-optimization-report.md` — fill-in deliverable for stakeholders. - `examples/right-sizing-walkthrough.md` — a concrete end-to-end example. ## Workflow 1. **Establish the baseline.** Pull the last 1–3 months from Cost Explorer or the Cost & Usage Report (CUR). A