Practical Error Handling with fp-ts

Upstream source: https://github.com/whatiskadudoing/fp-ts-skills · packaged via antigravity-awesome-skills (MIT)

This skill teaches you how to handle errors without try/catch spaghetti. No academic jargon - just practical patterns for real problems.

When to Use This Skill

• When you want type-safe error handling in TypeScript
• When replacing try/catch with Either and TaskEither patterns
• When building APIs or services that need explicit error types
• When accumulating multiple validation errors

The core idea: Errors are just data. Instead of throwing them into the void and hoping someone catches them, return them as values that TypeScript can track.

1. Stop Throwing Everywhere