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aws-billing-and-cost-management

Analyze AWS billing data to detect cost anomalies and recommend savings actions.

Updated May 12, 2026
Search Tags:#aws#budgeting#cost optimization#finops#reserved instances#savings plans#cur athena
One-click install
npx skills add https://github.com/mreferre/aws-agent-toolkit-skills --skill aws-billing-and-cost-management-mreferre
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: aws-billing-and-cost-management
Source: https://github.com/mreferre/aws-agent-toolkit-skills/tree/main/.kiro/skills/aws-billing-and-cost-management
Command: npx skills add https://github.com/mreferre/aws-agent-toolkit-skills --skill aws-billing-and-cost-management-mreferre

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps you identify what drives AWS cost growth and apply the right Cost Explorer, Budgets, CUR/Athena, and optimization actions to reduce spend without guessing or hallucinating numbers.

Core Features & Use Cases

  • Cost analysis & savings opportunities: Break down costs by service and drivers, find anomalies, and scope analysis to billing views.
  • Optimization actions: Evaluate Savings Plans/Reserved Instances recommendations and use Compute Optimizer (including right-sizing for EC2/Lambda/RDS/EBS).
  • FinOps auditing with deterministic math: Guide a repeatable cost-audit workflow using CUR 2.0 data queried via Athena, with guardrails that prevent unsafe arithmetic and enforce current-date checks.
  • Budget and Free Tier monitoring: Set up Budgets alerts (including billing-view scoped budgets) and verify Free Tier usage.

Quick Start

Ask the skill to audit your most recent full month of AWS costs, identify top cost drivers and any anomalies, and then produce a prioritized savings plan using Savings Plans/Reserved Instances and Compute Optimizer right-sizing guidance.

Frequently Asked Questions about aws-billing-and-cost-management

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I analyze AWS billing data to find cost anomalies and top spend drivers?▼

Analyze AWS billing data by breaking down costs by service and drivers to detect anomalies. The skill scopes analysis to billing views and guides a repeatable cost-audit workflow to identify what drives cost growth.

How do I use Athena to query CUR 2.0 data for FinOps auditing?▼

Query CUR 2.0 data via Athena for deeper audits using deterministic math and guardrails. The skill guides a repeatable cost-audit workflow that prevents unsafe arithmetic and enforces current-date checks for accurate reporting.

Can I evaluate Savings Plans and Reserved Instances recommendations for AWS cost optimization?▼

Evaluate Savings Plans and Reserved Instances recommendations to reduce AWS spend. The skill assesses commitment-based pricing options and integrates Compute Optimizer right-sizing guidance for EC2, Lambda, RDS, and EBS resources.

How do I set up AWS Budgets alerts scoped to specific billing views?▼

Set up AWS Budgets alerts scoped to billing views by correctly handling billing-view ARNs. The skill enforces proper API usage constraints for Budgets calls, allowing targeted budget monitoring and Free Tier usage verification.

What is the best way to right-size EC2, Lambda, RDS, and EBS resources using AWS Compute Optimizer?▼

Right-size EC2, Lambda, RDS, and EBS resources using AWS Compute Optimizer recommendations. The skill applies this optimization alongside Savings Plans evaluation to produce a prioritized savings plan for reducing compute spend.

Does this AWS cost analysis approach prevent hallucinated billing numbers and unsafe calculations?▼

Yes, AWS cost analysis is enforced with deterministic calculations via scripts and guardrails that prevent unsafe arithmetic. The skill enforces current-date checks and correct API constraints to avoid guessing or hallucinating billing numbers.

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