Function Design & Composition

What problem does it solve?

This Skill teaches how to structure serverless function handlers to maximize reliability, maintainability, and predictable behavior by isolating concerns, reusing connections, and enforcing single-responsibility patterns.

Core Features & Use Cases

• Single-responsibility handler structure with module-scoped resource initialization and small, glue-like handlers.
• Idempotent designs and robust error handling for batch processing in event-driven architectures.
• Guidance for function composition and orchestration to build multi-step workflows (e.g., event pipelines using queues and state machines).

Quick Start

Implement a sample Lambda handler that uses module-scoped clients, a dedicated service layer, and an orchestrated flow to process a batch of events.