cost-estimator
Estimate AWS costs for CDK projects using real-time pricing data. Use when calculating infrastructure costs, generating pricing reports, or analyzing CDK resource costs before deployment.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/aws-samples/sample-agent-skills-for-builders --skill cost-estimator- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads cost-estimator automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Cost Estimator
AWS cost estimation tool for CDK projects with real-time pricing from AWS Price List Bulk API.
When to Apply
Reference this skill when:
- Estimating AWS infrastructure costs
- Analyzing CDK project resource costs
- Generating pricing reports (Excel/Markdown)
- Comparing costs across AWS regions
- Calculating Bedrock model costs
How It Works
- Confirm Region - Select target AWS region(s)
- Scan Resources - Analyze CDK code for AWS resources
- Fetch Pricing - Get real-time prices from AWS Bulk API
- Generate Reports - Create Excel and Markdown reports
Prerequisites
- AWS CDK project with synthesizable stacks
- Python 3.8+ with pandas, openpyxl
- AWS credentials (for pricing API access)
Usage
# Fetch AWS pricing data
python scripts/fetch-aws-pricing.py --region us-east-1
# Generate Excel report
python scripts/generate-pricing-excel.py --input resources.json --output costs.xlsx
Output Files
Reports are saved to cost-estimates/:
cost-estimate-{region}.xlsx- Detailed Excel reportcost-estimate-{region}.md- Markdown summary
Supported Regions
- All standard AWS regions
- China regions (cn-north-1, cn-northwest-1) with CNY pricing
References
- CDK Analysis - Resource scanning guide
- Pricing API - AWS Bulk API usage
- Report Generation - Report creation
- Bedrock Pricing - AI model pricing
FAQ
What does the cost-estimator skill do?
Estimate AWS costs for CDK projects using real-time pricing data. Use when calculating infrastructure costs, generating pricing reports, or analyzing CDK resource costs before deployment.
How do I install cost-estimator?
Run npx skills add https://github.com/aws-samples/sample-agent-skills-for-builders --skill cost-estimator in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/cost-estimator/ (personal) or .claude/skills/cost-estimator/ (project).
Which AI agents can use cost-estimator?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is cost-estimator safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains cost-estimator?
It is published by aws-samples in aws-samples/sample-agent-skills-for-builders. It has 55 recorded installs.
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