aws-cost-optimizer

Comprehensive AWS cost analysis and optimization recommendations using AWS CLI and Cost Explorer

1.17x

Quality

41%

Does it follow best practices?

Impact

94%

1.17x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Optimize this skill with Tessl

npx tessl skill review --optimize ./skills/antigravity-aws-cost-optimizer/SKILL.md

Evaluation results

98%

AWS Cost Analysis Report for Quarterly Business Review

Cost optimization workflow and leadership report

Criteria

Without context

With context

6-month data coverage

100%

Top 5 services identified

100%

Growth rate calculated

100%

4-phase workflow structure

83%

Reserved Instance analysis

100%

Dollar savings estimates

100%

Cost Anomaly Detection

100%

S3 lifecycle or Intelligent-Tiering

100%

Cost allocation tags

100%

AWS Budget alerts

100%

AWS CLI commands included

100%

86%

20%

AWS Zombie Resource Audit Script

Idle resource detection with correct CLI patterns and safety guards

Criteria

Without context

With context

EBS filter pattern

100%

Unused EIP query

100%

CloudWatch EC2 namespace

100%

<5% CPU idle threshold

100%

>90 day snapshot threshold

100%

Snapshot owner filter

100%

86400 period for daily stats

Dry-run or commented deletion

100%

Verification before deletion

100%

Backup recommendation

100%

Table output format

100%

16%

AWS Cost Governance Infrastructure Setup

Cost governance setup and ongoing monitoring infrastructure

Criteria

Without context

With context

Cost allocation tags

100%

AWS Budget creation

100%

Cost Anomaly Detection

100%

S3 lifecycle policy

100%

S3 Intelligent-Tiering

100%

CloudWatch Logs retention

100%

Multi-region cost consideration

100%

Reserved Instance recommendation

100%

Spot instance recommendation

100%

Automation/reproducibility

100%

AWS Trusted Advisor mention

100%

Repository: boisenoise/skills-collections
Commit: f1697b6

Evaluated: about 1 month ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

AWS Cost Analysis Report for Quarterly Business Review AWS Zombie Resource Audit Script AWS Cost Governance Infrastructure Setup

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