Aws Lambda Typescript Integration

This handles the cold start optimization decisions you'll face when building TypeScript Lambdas. You get two paths: NestJS for dependency injection and complex APIs (500ms cold start, 100KB+ bundles) or raw TypeScript for simple handlers (under 100ms, sub-50KB bundles). Includes working handler patterns for both approaches, API Gateway and ALB integration configs, and the usual gotchas around connection pooling and bundle size. Most useful when you're past the hello world stage and need to actually ship something that won't timeout on first invocation. The deployment validation checklist is genuinely helpful.

skills.sh installs: 3.7K
GitHub stars: 369
last updated: Aug 21, 2026

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Install

$ npx -y skills add giuseppe-trisciuoglio/developer-kit --skill aws-lambda-typescript-integration --agent claude-code

Installs into .claude/skills of the current project.

Files

AWS Lambda TypeScript Integration

Patterns for creating high-performance AWS Lambda functions in TypeScript with optimized cold starts.

Overview

Two approaches for TypeScript Lambda:

NestJS Framework - Dependency injection, modular architecture, larger bundle (100KB+)
Raw TypeScript - Minimal overhead, smaller bundle (<50KB), maximum control

Both support API Gateway and ALB integration.

When to Use

Creating new Lambda functions in TypeScript
Optimizing cold start performance
Choosing between NestJS and minimal TypeScript
Configuring API Gateway or ALB integration
Setting up CI/CD for TypeScript Lambda

Instructions

1. Choose Your Approach

Approach	Cold Start	Bundle Size	Best For	Complexity
NestJS	< 500ms	Larger (100KB+)	Complex APIs, enterprise apps, DI needed	Medium
Raw TypeScript	< 100ms	Smaller (< 50KB)	Simple handlers, microservices, minimal deps	Low