Lambda

This covers the essentials for working with AWS Lambda: creating functions, configuring triggers from S3/SQS/Kinesis, managing layers, and debugging invocations. The cold start optimization section is practical, especially the tip about initializing connections outside the handler to reuse them across invocations. Good reference for event source mappings and the differences between synchronous, asynchronous, and poll-based invocations. The troubleshooting section addresses real pain points like VPC latency and memory errors. One thing to note is that Lambda's pricing model really does favor smaller, focused functions over monoliths, so the guidance on right-sizing memory and timeout settings can directly impact your AWS bill.

Install to Claude Code

npx -y skills add itsmostafa/aws-agent-skills --skill lambda --agent claude-code