effect-v4-errors

Replace Effect.catchAll with Effect.catchTag for typed error handling in Effect v4.

68|13|Updated Aug 9, 2025
One-click install
npx skills add https://github.com/kriegcloud/beep-effect --skill effect-v4-errors
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: effect-v4-errors
Source: https://github.com/kriegcloud/beep-effect/tree/main/.agents/skills/effect-v4-errors
Command: npx skills add https://github.com/kriegcloud/beep-effect --skill effect-v4-errors

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill streamlines error management in Effect v4, enabling developers to implement robust, typed error handling and improve application stability.

Core Features & Use Cases

  • Typed Error Handling: Utilize Effect.catchTag for precise error management.
  • Exception Boundaries: Employ Effect.try and Effect.tryPromise for safe exception handling.
  • Null Safety: Leverage Option and Match for explicit null and failure mode management.

Quick Start

Use the effect-v4-errors skill to replace Effect.catchAll with Effect.catch for typed errors.

Frequently Asked Questions about effect-v4-errors

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I handle typed errors in Effect v4 instead of using catchAll?

To handle typed errors in Effect v4, replace Effect.catchAll with Effect.catch and utilize Effect.catchTag for precise error management. This enforces specific error modeling using TaggedErrorClass for robust application stability.

What is the best way to manage null safety and failure modes in Effect v4?

The best way to manage null safety in Effect v4 is leveraging Option and Match boundaries. This provides explicit null and failure mode management, ensuring robust handling of absent values without uncaught exceptions.

How do I create safe exception boundaries with Effect v4 for synchronous and asynchronous code?

Create safe exception boundaries in Effect v4 by employing Effect.try for synchronous code and Effect.tryPromise for asynchronous operations. This safely catches unexpected exceptions and converts them into typed errors.

When should I use TaggedErrorClass in Effect v4 error modeling?

Use TaggedErrorClass in Effect v4 when designing structured, typed errors that require precise handling. It enables specific catch semantics, allowing you to target distinct error tags rather than generic failures.

Does Effect v4 typed error handling work without external dependencies?

Yes, Effect v4 typed error handling works without external dependencies. It relies entirely on internal mechanisms like Effect.catchTag, Option, Match, and TaggedErrorClass to establish robust error boundaries.