This one's for anyone writing Node.js or TypeScript code that talks to AWS services using the v3 SDK. It covers the modular client pattern (the `@aws-sdk/client-*` packages), credential providers, streaming response handling (critical because unread streams leak sockets), DynamoDB DocumentClient, S3 presigned URLs and multipart uploads, paginators, and middleware. The guidance is opinionated in the right ways: prefer the bare-bones client style for smaller bundles, never mutate client config after instantiation, always consume or destroy streams. If you're moving from v2 or just need to stop Googling basic patterns like credential chains and error handling, this saves a lot of time.
npx skills add https://github.com/aws/agent-toolkit-for-aws --skill aws-sdk-js-v3-usage