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ministack-aws-emulator — Claude Code skill: what it does, install

This skill guides an agent through running MiniStack, a local AWS emulator for testing S3, SQS, DynamoDB, and other services.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add reason-machines/trending-skills --skill ministack-aws-emulator -a claude-code
Open on GitHub

What ministack-aws-emulator does

The skill gives Claude Code guidance for replacing a remote AWS dependency with MiniStack during local work. MiniStack exposes 25+ AWS services through one local port, 4566, including S3, SQS, DynamoDB, Lambda, SNS, IAM, STS, and Kinesis. The examples cover boto3, AWS CLI, Terraform, CDK, and other SDKs.

Its instructions cover PyPI, Docker, and Docker Compose setup, a curl health check, GATEWAY_PORT, and the S3_PERSIST setting for keeping S3 data on disk. It also shows how to point Python clients and AWS CLI commands at http://localhost:4566.

The local endpoint only exists after ministack is started. MiniStack does not require an AWS account or API key.

What it helps with

  • run a local AWS endpoint for tests
  • exercise boto3 code without contacting AWS
  • create an S3 bucket and upload a file
  • check SQS and DynamoDB calls through AWS CLI

Example prompts for the agent

  • Set up MiniStack as a local AWS emulator and run it at http://localhost:4566.
  • Show me how to create an S3 bucket and upload file.txt through the local endpoint.
  • Check whether MiniStack is running with curl http://localhost:4566/_localstack/health.

How to install ministack-aws-emulator

1Skills CLI (Vercel)

npx skills add reason-machines/trending-skills --skill ministack-aws-emulator -a claude-code

2Manually: put the files in place

~/.claude/skills/ministack-aws-emulator/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/ministack-aws-emulator/

Step by step, with commands for each platform: How to install skills in Claude Code: five ways

Questions about ministack-aws-emulator

How do I install ministack-aws-emulator in Claude Code?

Run npx skills add reason-machines/trending-skills --skill ministack-aws-emulator -a claude-code. The skill file will be at ~/.claude/skills/ministack-aws-emulator/SKILL.md.

What does ministack-aws-emulator do?

It gives the agent instructions for setting up MiniStack, a local AWS emulator with 25+ services on port 4566. The skill includes AWS CLI and boto3 usage patterns.

Does MiniStack need an AWS account or API key?

No. MiniStack runs locally without an AWS account or API key, and test credential values can be used for requests.

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