go-lambda-error-handling

What problem does it solve?

This Skill helps you design, review, and implement reliable error handling in Go AWS Lambda services so failures stay explicit, diagnosable, and correctly mapped at the boundary.

Core Features & Use Cases

• Domain and application errors: Keep business rules, validation, and orchestration failures transport-agnostic and inspectable.
• HTTP adapter mapping: Convert expected failures into safe API Gateway responses with the right status codes instead of generic Lambda errors.
• SQS retry behavior: Classify retryable and terminal failures, support partial batch responses, and preserve FIFO ordering when required.
• Boundary hygiene: Wrap causes with context, avoid string-based branching, and prevent transport concerns from leaking into core logic.
• Use case: Apply this Skill when a Go Lambda microservice needs consistent error propagation across domain, application, outbound adapters, and HTTP or SQS inbound handlers.

Quick Start

Ask for a review or implementation plan that updates the Go Lambda service to use explicit wrapped errors and correct HTTP or SQS failure mapping.