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AWS Cost Optimization Skill by @BagelHole

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github stars★ 1,180updatedMar 2026repo@BagelHole

$git clone https://github.com/BagelHole/DevOps-Security-Agent-Skills

The skill is the infrastructure/cloud-aws/aws-cost-optimization folder inside that repository. Copy it into the folder your agent loads skills from; check your agent's documentation for where that is.

about AWS Cost Optimization Skill by @BagelHole

Reduce AWS spend with rightsizing, autoscaling, commitment planning, and storage lifecycle policies.

our take

Reduces AWS spend through rightsizing, autoscaling, commitment planning and storage lifecycle policies, with a cost review workflow, Cost Explorer CLI commands and budget alerts.

when to use it

Your AWS bill is growing faster than usage
You run a FinOps review
You want budget alerts in place

before you install

Commitments such as savings plans lock in spend, so check usage trends first
Cost cuts should be tested for performance impact

what's inside

The original SKILL.md is organised into these sections:

When to Use This Skill
Prerequisites
Cost Review Workflow
Cost Explorer CLI Commands
Budget Alerts
CloudWatch Cost Alarm
Find and Clean Unused Resources
S3 Lifecycle Cost Optimization
Terraform Budget and Alarm Example
Scheduling Non-Production Shutdowns
Troubleshooting
Related Skills

source and license

Written and maintained by @BagelHole. It is published under the MIT license, which allows reuse with attribution. SkillDirectory does not claim authorship: this page adds our own review and links back to the original, and the skill's text belongs to its author.

View the full SKILL.md on GitHub ↗

Read the opening of the original SKILL.md

# AWS Cost Optimization

Apply practical FinOps controls to reduce AWS spend without sacrificing reliability or performance.

## When to Use This Skill

- Monthly AWS bill spikes unexpectedly or exceeds budget thresholds
- Preparing cost reviews with engineering and finance teams
- Rightsizing EC2, RDS, EKS, or Lambda workloads after load testing
- Choosing between Savings Plans, Reserved Instances, or on-demand pricing
- Setting up automated budget alerts and anomaly detection
- Cleaning up unused resources (unattached EBS, idle load balancers, old snapshots)
- Optimizing data transfer costs across regions and AZs

## Prerequisites

- AWS CLI v2 installed and configured (`aws configure`)
- IAM permissions: `ce:*`, `budgets:*`, `ec2:Describe*`, `cloudwatch:PutMetricAlarm`, `s3:PutLifecycleConfiguration`
- Cost Explorer enabled in the AWS billing console (takes 24 hours to populate)
- Cost allocation tags activated in the Billing console

## Cost Review Workflow
…

Excerpt only, quoted from the author's repository. Open the repository for the complete file.

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